CN105628334A - Aeroelastic model-based synchronous pressure measurement and vibration measurement system and realization method - Google Patents
Aeroelastic model-based synchronous pressure measurement and vibration measurement system and realization method Download PDFInfo
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- CN105628334A CN105628334A CN201610176152.6A CN201610176152A CN105628334A CN 105628334 A CN105628334 A CN 105628334A CN 201610176152 A CN201610176152 A CN 201610176152A CN 105628334 A CN105628334 A CN 105628334A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
Abstract
The invention relates to an aeroelastic model-based synchronous pressure measurement and vibration measurement system. The aeroelastic model-based synchronous pressure measurement and vibration measurement system includes a pressure measurement system used for performing pressure measurement on an aeroelastic model, a vibration measurement system used for performing vibration measurement on the aeroelastic model, a processor connected with the pressure measurement system and the vibration measurement system, and a corrector used for realizing synchronous data acquisition of the pressure measurement system and the vibration measurement system. The whole device of the invention is simple. Based on the combined utilization of the processor and the corrector, synchronous pressure measurement and vibration measurement of the aeroelastic model can be realized, and accurate and effective wind tunnel experiment data such as synchronous wind load and wind-induced vibration response data can be obtained, and therefore, interaction between wind and structures can be fully and truly reflected. The invention also provides a correction method for realizing synchronous pressure measurement and vibration measurement. The method is simple in operation and low in cost, and can obtain lag time difference of the two systems, realize synchronous pressure measurement and vibration measurement through correction, and finally achieve structure-wind coupling vibration analysis.
Description
Technical field
The present invention relates to technical field of buildings, it is specifically related to a kind of simultaneous multi-pressure measurement based on air spring pole and vibration measuring system and implementation method.
Background technology
High-rise building pattern of body form change is various, and floor space is little, obtains flourish in populous big city. Along with the widespread use of light-weight high-strength material and the progress of operating technique, the height of high-rise building increases day by day, soft degree is increasing, wind loading is further responsive, therefore, wind loading becomes the primary side of flexible high-rise building to one of load, and its wind-induced vibration caused also is the major control factors of structure design. Now, the pneumatic elastic effect produced due to the coupling of structure-wind be can not ignore, thus it is contemplated that the vibratory response of pneumatic elastic effect is generally obtained by aeroelastic model wind1 tunnel trial. Rationally effective wind-tunnel experimental technique and model are the important foundations obtaining reliable data. At present, conventional wind-tunnel technique mainly contains: high frequency dynamic scale dynamometry technology, rigid model pressure measurement technology, air spring pole vibration measuring technology etc., the above two mainly obtain wind loading, and the latter mainly obtains wind-excited responese.
Air spring pole is divided into again single degree of freedom aeroelastic model and the multi mode aeroelastic model of resiliency supported rigid structure. Pure rigid model pressure measurement technology cannot simulate the pneumatic elastic effect in structure and flow field in actual wind field; Traditional multi mode aeroelastic model can obtain the vibratory response of wind and structural interaction, but cannot obtain structural wind loading simultaneously; In addition, all there is bigger difficulty in multi mode aeroelastic model in the problems such as designing technique, manufacturing process, expense. Therefore, design a kind of simple, expense low, meet practical structures ratio of similitude and require, be easy to dismounting, can the multiple degree of freedom pneumatic elasticity wind-tunnel experimental model of pressure measurement simultaneously and vibration measuring and a set of acquisition system and method realizing simultaneous multi-pressure measurement and vibration measuring, be necessary with the interaction obtaining the accurate effective synchronous Wind Tunnel Data such as wind loading and wind-induced vibration response and truly reflecting wind and structure comprehensively.
Patent of invention content
First object of the present invention is to provide that a kind of structure is simplified, cost is low, dismountable air spring pole and can the system of simultaneous multi-pressure measurement and vibration measuring, concrete technical scheme is as follows:
Based on simultaneous multi-pressure measurement and the vibration measuring system of air spring pole, comprise the pressure measuring system for air spring pole being carried out pressure measurement, for air spring pole to be carried out the vibration measuring system of vibration measuring, the treater being connected and for realizing pressure measuring system and vibration measuring system carries out the adjuster of synchro measure with described pressure measuring system and described vibration measuring system simultaneously;
Described pressure measuring system comprises the scanning valve that the testing tube being connected with pressure tap on air spring pole is connected and the collector A being connected described scanning valve and described treater by wire group A respectively with described testing tube;
Described vibration measuring system comprises and being oppositely arranged with air spring pole and electric charges amplify device that both are connected with described laser displacement gauge at a distance of certain laser displacement gauge measuring distance and the collector B that is connected with described electric charges amplify device and described treater respectively, is all connected by wire group B between described electric charges amplify device and described laser displacement gauge and between described electric charges amplify device with described collector B.
In above technical scheme preferred, described adjuster is syringe, and the piston handle of described syringe is relative with measuring its described laser displacement gauge moved and both distances necessarily measure distance setting, and its pin mouth is connected with described scanning valve by piezometric tube.
In above technical scheme preferred, this air spring pole comprises the mounting seat for installing, lower end is arranged in described mounting seat and the plug vertically arranged, the coat board component that is arranged on described plug periphery by support bar assembly;
Described coat board component comprises the multiple coat plate single-pieces arranged successively from the bottom to top, and described coat plate single-piece comprises at least one block of coat plate, and the inside of described coat plate is provided with piezometric tube, the pressure tap that its outside surface is provided with described piezometric tube communicates;
Described support bar assembly comprises the multiple support single-pieces arranged successively from the bottom to top, and the position, center of described support single-piece is provided with for by the docking threaded hole of described plug.
In above technical scheme preferred, described mounting seat is provided with the passage and uniform multiple installation screw for installing that pass for circuit; Described mounting seat is the base being made up of steel plate, aluminium sheet or iron plate;
Described coat plate single-piece comprises end to end four blocks of coat plates; In the horizontal plane, the cross section of described coat plate single-piece is rectangular configuration; The material of described coat plate is synthetic glass, has just connect mode by free of discontinuities and connect between connected two blocks of described coat plates; Gap between neighbouring two described coat plate single-pieces is 0.1-0.5cm;
Described plug is the steel core bar of I-shaped structure; Described support single-piece is circle bar.
In above technical scheme preferably, the lower end of described plug is welded in described mounting seat; Described support single-piece has just been connected on described plug by described threaded hole.
In order to reach better technique effect, also comprising pad, the side of described pad connects described support single-piece, and its another side connects described coat plate; Described coat plate is provided with open holes, is rigidly connected through described open holes by flat head screw between described coat plate, pad and support single-piece, and the top of described flat head screw cap and the outside surface of described coat plate are put down together.
In above technical scheme preferably, described pad is poly (methyl methacrylate) plate pad.
The simultaneous multi-pressure measurement based on air spring pole of application the present invention and vibration measuring system, have following technique effect:
(1) simultaneous multi-pressure measurement based on air spring pole of the present invention and vibration measuring system comprise the pressure measuring system for air spring pole being carried out pressure measurement, for air spring pole being carried out the vibration measuring system of vibration measuring and the treater being connected with described pressure measuring system and described vibration measuring system respectively and for realizing pressure measuring system and vibration measuring system carries out the adjuster of synchro measure, whole apparatus simplified; By the use of adjuster, it is achieved the simultaneous multi-pressure measurement of air spring pole and vibration measuring, obtain the accurately effective synchronous Wind Tunnel Data such as wind loading and wind-induced vibration response, thus truly reflect the interaction of wind and structure comprehensively.
(2) adjuster of the present invention adopts syringe, and the pin mouth of syringe and piston handle connect pressure measuring system and vibration measuring system respectively, and parts easily obtain, and convenient operation, the lag time that can accurately obtain two systems is poor, thus system is adjusted, it is achieved simultaneous multi-pressure measurement and vibration measuring.
(3) air spring pole of the present invention comprises mounting seat, plug, the coat board component that is arranged on described plug periphery by support bar assembly, coat board component comprises the multiple coat plate single-pieces arranged successively from the bottom to top, described coat plate single-piece comprises at least one block of coat plate, the inside of described coat plate is provided with piezometric tube, the pressure tap that its outside surface is provided with described piezometric tube communicates; Described support bar assembly comprises the multiple support steel poles arranged successively from the bottom to top, and the inside of described support steel pole is provided with the special threaded hole being effectively connected with described plug and described coat, and one-piece construction is simplified, is easy to installation and removal; The shape of coat plate single-piece and support bar, quantity and length can determine according to the exact shape of buildings with highly, by the basis of theory of similitude, make air spring pole of the present invention can simulate kinematic behavior and the aeroelastic characteristic of actual high-rise building well, make model experiment can obtain comparatively true and reliable Wind Tunnel Data; The design of piezometric tube and pressure tap, it is achieved air spring pole of the present invention pressure measurement simultaneously and vibration measuring, obtain wind loading and the wind-excited responese information of Highrise buildings, it is achieved multifunctional application simultaneously.
(4) in the present invention, mounting seat is provided with the passage and uniform multiple installation screw for installing that pass for circuit, and is convenient to wiring and installs; Described mounting seat is the base being made up of steel plate, aluminium sheet or iron plate, meets the rigidity requirement of building in simulating reality, it may also be useful to the life-span is long.
(5) in the present invention, coat plate single-piece comprises four blocks of coat plates; In the horizontal plane, the cross section of described coat plate single-piece is rectangular configuration; The material of described coat plate is synthetic glass, has just connect mode by free of discontinuities and connect between connected two blocks of described coat plates; Certain gap 0.1-0.5cm is left between neighbouring coat plate single-piece, coat board component is made not hinder the distortion of plug, not participate in the integral rigidity of model, so that designed experimental model is consistent with the series connection multi-freedom-degree vibration form of practical structures; The design of the shape of the quantity of coat plate and material and coat plate single-piece so that coat board component meets rigid demand; Coat plate single-piece can realize layer assembly, and the pressure measurement pipeline on coat plate is shortened, and reduces flow distortion, thus obtains comparatively accurate surface wind pressure data.
(6) plug described in the present invention is the steel core bar of I-shaped structure; Described support single-piece is the circular steel pole of the special threaded hole of band. While meeting rigidity of model demand, it is convenient to installation and removal.
(7) the lower end of plug described in the present invention is welded in described mounting seat, and plug and mounting seat are rigidly connected, good stability. Described support single-piece has just been connected on described plug by docking threaded connector, the assembly and disassembly that can realize plug and support between single-piece, it is convenient to change plug change integrally-built basic mechanical characteristic and carry out many-sided research, or it is convenient to change the structure of different coat board component and carry out many-sided research, saves scientific research or engineering test cost.
(8) also comprising pad in the present invention, the design of pad and its installation mode had both made coat plate by flat head screw and had supported to be rigidly connected between single-piece, can ensure again coat plate surfacing.
2nd object of the present invention is to provide a kind of simultaneous multi-pressure measurement, the vibration measuring modification method that are easy to realization, specifically:
Realize a modification method for simultaneous multi-pressure measurement and vibration measuring, comprise the following steps:
The first step: simultaneously started pressure measuring system and vibration measuring system by treater, the pressure data and the displacement data that obtain adjuster piston motion respectively also transmit back treater, and described pressure data comprises pressure time-process, and described displacement data comprises displacement time-histories;
2nd step: according to the variation characteristic of the pressure time-process obtained by adjuster in the first step and displacement time-histories, show that the lag time of pressure measuring system and vibration measuring system is poor;
3rd step: poor according to the lag time in the 2nd step, the start time of treater adjustment pressure measuring system or vibration measuring system, it is achieved the simultaneous multi-pressure measurement of air spring pole and vibration measuring.
In above technical scheme preferably, in the described the first step: the concrete acquisition process of the pressure data that syringe piston moves is: start collector A by treater, obtain pressure data by the testing tube being connected with the pin mouth of syringe and the scanning valve being connected with testing tube and it is transferred to collector A, pressure data is passed to treater by collector A then, and the data received are carried out process and output display by treater;
The concrete acquisition process of the displacement data that described syringe piston handle moves is: start collector B by treater, obtain the displacement data of piston handle by laser displacement gauge and the electric charges amplify device that is connected with described laser displacement gauge and it is transferred to collector B, displacement data is transferred to treater by data acquisition unit B, and the data received are carried out process and output display by treater.
In above technical scheme preferred, the time difference simultaneously starting described collector A and described collector B by treater in the described the first step is no more than 0.0002 second.
Application the present invention realizes the modification method of simultaneous multi-pressure measurement and vibration measuring, has following technique effect: operating process is simple, convenient operation; First obtain the lag time of two acquisition systems by adjuster poor, again by revising, realize simultaneous multi-pressure measurement and the vibration measuring of air spring pole, obtain the accurately effective synchronous Wind Tunnel Data such as wind loading and wind-induced vibration response, thus realize structure-wind coupled vibration analysis, reflect the interaction of wind and structure comprehensively truly.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage. Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing of the part forming the application is used to provide a further understanding of the present invention, and the schematic description and description of the present invention, for explaining patent of the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is based on the simultaneous multi-pressure measurement of air spring pole and the structural representation of vibration measuring system in the embodiment of the present invention 1;
Fig. 2 is the structural representation of air spring pole in Fig. 1;
Fig. 3 is that Fig. 2 dismantles and dispenses passage in coat board component and mounting seat and install the structural representation of screw;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the C-C sectional drawing of Fig. 2;
Fig. 6 is the upward view of mounting seat in Fig. 2;
Fig. 7 is the pressure measurement and the vibration measuring system lag time difference figure that start adjuster;
Fig. 8 is certain the measuring point pressure time-process before air spring pole is synchronously revised and top displacement response time-histories figure;
Fig. 9 is certain the measuring point pressure time-process after air spring pole is synchronously revised and top displacement response time-histories figure;
Wherein, 1, mounting seat, 11, passage, 12, screw is installed, 2, plug, 3, coat board component, 31, coat plate single-piece, 311, coat plate, 4, support bar assembly, 41, single-piece is supported, 411, docking threaded hole, 412, screw open holes, 5, pad, 6, pressure measuring system, 61, testing tube, 62, valve is scanned, 63, wire group A, 64, acquisition system A, 7, treater, 8, vibration measuring system, 81, laser displacement gauge, 82, wire group B, 83, electric charges amplify device, 84, acquisition system B, 9, air spring pole, 10, adjuster;
A, pressure tap, B, open holes.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can implement according to the multitude of different ways of scope and covering.
Embodiment 1:
See Fig. 1-Fig. 6, based on simultaneous multi-pressure measurement and the vibration measuring system of air spring pole, comprise the pressure measuring system 6 for air spring pole being carried out pressure measurement, for air spring pole to be carried out the vibration measuring system 8 of vibration measuring, the treater 7 being connected and for realizing pressure measuring system 6 and vibration measuring system 8 carries out the adjuster 10 of synchro measure with described pressure measuring system and described vibration measuring system simultaneously.
Described pressure measuring system 6 comprises the scanning valve 62 that the testing tube 61 being connected with pressure tap on air spring pole 9 is connected and the collector A (label is 64) being connected described scanning valve 62 and described treater 7 by wire group A (label is 63) respectively with described testing tube 61.
Described vibration measuring system 8 is comprised and being connected with described scanning valve 62 by described adjuster 10 and simultaneously relative with air spring pole and the electric charges amplify device 83 that is connected with described laser displacement gauge 81 at a distance of the laser displacement gauge 81 of certain measurement distance and the collector B (label is 84) being connected with described electric charges amplify device 83 and described treater 7 respectively, is all connected by wire group B (label is 82) between described electric charges amplify device 83 with described laser displacement gauge 81 and between described electric charges amplify device 83 with described collector B (label is 84).
Above-mentioned adjuster 10 is syringe, and the piston handle of described syringe is relative with the described laser displacement gauge 81 that can measure its action and arranges at a distance of certain measurement distance, and its pin mouth is connected with described scanning valve 62 by piezometric tube. Treater in above-mentioned adopts computer, comprises the acquisition software of pressure measurement and vibration measuring two kinds of systems and starts software simultaneously. Distance between piston handle and laser displacement gauge generally gets 10cm-30cm, and during practical application, the general model according to laser displacement gauge of this distance is determined.
Above-mentioned air spring pole 9 comprises the mounting seat 1 for installing, lower end is arranged in described mounting seat 1 and vertically arranges plug 2, the coat board component 3 being arranged on described plug 2 periphery by support bar assembly 4.
Described mounting seat 1 is provided with the passage 11 and uniform multiple installation screw 12 (referring to Fig. 6) for installing that pass for circuit; Described mounting seat 1 is the base being made up of steel plate, aluminium sheet or iron plate.
Described plug 2 is the steel core bar (referring to Fig. 5) of I-shaped structure, and its lower end is welded in described mounting seat 1.
Described coat board component 3 comprises seven the coat plate single-pieces 31 (seven coat plate single-piece concentrics are arranged) arranged successively from the bottom to top, described coat plate single-piece 31 comprises four blocks of coat plates 311, the inside of described coat plate 311 is provided with piezometric tube, and its outside surface is provided with the pressure tap A communicated with described piezometric tube. In the horizontal plane, the cross section of described coat plate single-piece 31 is rectangular configuration. The material of described coat plate 311 is synthetic glass, has just connect mode by free of discontinuities and connect between connected two blocks of described coat plates 311; Gap between neighbouring two described coat plate single-pieces 31 is 0.1-0.5cm. Described support single-piece 41 is circular steel pole (referring to Fig. 5).
Described support bar assembly 4 comprises the 14 support single-pieces 41 arranged successively from the bottom to top and (refers to Fig. 2-Fig. 4,14 support single-piece concentric and arrange, every two connect a coat plate single-piece), the docking threaded hole 411 that described support single-piece 41 is provided with described plug 2 is firmly connected, described support single-piece 41 has just been connected on described plug 2 by described docking threaded hole 411.
The number of the size of above coat board component 3, the number of coat plate single-piece 31 and support single-piece 41 is all that the cross section size according to the high-rise building to be simulated is determined by ratio of similitude principle.
Also comprising pad 5 in the present invention, described pad 5 is positioned at the junction of described support single-piece 41 with described coat plate 311, described coat plate 311 is provided with the open holes B for screw is installed, described coat plate 311, pad 5 and support to carry out being rigidly connected through described open holes B by flat head screw between single-piece 41 and (be also provided with screw open holes 412 in described support single-piece 41, it is convenient to one end insertion of flat head screw, with satisfied support single-piece 41, it is rigidly connected between pad 5 and coat plate 311 three, and bonding is firmly), the top of described flat head screw cap is no more than the outside surface (preferably: the top of described flat head screw cap and the flush with outer surface of described coat plate 311) of described coat plate 311. described pad 5 is poly (methyl methacrylate) plate pad.
In the present invention, the installation mode of air spring pole 9 has multiple, enumerates one below, specifically: by it, mounting seat 1 is installed screw 12 and is arranged on wind-tunnel rotating disk; The bottom of plug 2 is welded in mounting seat 1; Install from the bottom to top support single-piece 41 (during installation, the docking screw of single-piece will be supported through plug, and with dock threaded hole 411 and tightens, clamp and be just connected on plug 2); Coat plate single-piece 31 is installed from the bottom to top (when coat plate single-piece 31 is installed, can first connect coat plate, coat plate single-piece 31 being just connected on by pad 5 supports in single-piece 41 again, can also be directly just connected on by pad 5 by every block coat plate 311 respectively supports in single-piece 41, installs and notes also just connecing being connected between two blocks of coat plates 311 simultaneously).
The present invention is as follows based on the simultaneous multi-pressure measurement of air spring pole and the installation of vibration measuring system: be connected with scanning valve 62 by the testing tube 61 on coat in air spring pole 9, the support single-piece place that scanning valve 62 is placed in model is fixed, scanning valve 62 connects the cable 63 by base duct, being connected with the acquisition system A (label is 64) of model outside, acquisition system A is connected with computer by cable 63; The laser displacement gauge 81 of Displacement Measurement is positioned over the position with a certain distance from model, is connected with electric charges amplify device 83 by cable 82, and electric charges amplify device 83 is connected with acquisition system B by cable 82, and acquisition system B is connected with computer 7 by cable 82.
Application the present invention realizes the modification method of simultaneous multi-pressure measurement and vibration measuring, comprises the following steps:
The first step: started pressure measuring system 6 and vibration measuring system 8 (time difference that described collector A and described collector B starts is no more than 0.0002 second) by treater 7, pressure data and the displacement data obtaining adjuster 10 piston motion respectively and produce also is passed to treater 7 simultaneously;
2nd step: the Lag time that the pressure data (comprising pressure time-process) obtained according to adjuster in the first step 10 and displacement data obtain (comprising displacement time-histories) pressure measurement and vibration measuring system is poor, lag time difference obtains by analyzing the variation characteristic of pressure time-process and displacement time-histories, refers to Fig. 7;
3rd step: poor according to the lag time in the 2nd step, the start time of adjustment pressure measuring system 6 or vibration measuring system 8, guarantee pressure measuring system 6 and vibration measuring system 8 image data simultaneously, it is achieved the simultaneous multi-pressure measurement of air spring pole and vibration measuring, refer to Fig. 9 (figure before correction refers to Fig. 8).
In said process, the concrete acquisition process of the pressure data of adjuster 10 is: run collector A by treater 7, being obtained pressure data by the testing tube 61 being connected with the pin mouth of syringe and the scanning valve 62 being connected with testing tube 61 and be transferred to collector A, pressure data is passed to treater 7 and carries out process and output display by collector A then.
In said process, the concrete acquisition process of the displacement data of adjuster 10 is: run collector B by treater 7, by being oppositely arranged with syringe piston handle and leave certain laser displacement gauge 81 measuring distance and the electric charges amplify device 83 being connected with described laser displacement gauge 81 obtains vibration data and is transferred to collector B, vibration data is transferred to treater 7 and carries out process also output display by data acquisition unit B.
Application the present invention, based on the simultaneous multi-pressure measurement of air spring pole and vibration measuring system and its implementation, has following technique effect:
1, the design of whole air spring pole is rationally meticulous, on the basis of theory of similitude, it is possible to simulates kinematic behavior and the aerodynamic characteristic of actual high-rise building well, makes model experiment can obtain comparatively true and reliable Wind Tunnel Data; Connecting bolt-threaded hole is firmly connected by special by plug with supporting between single-piece, it may be achieved assembly and disassembly, is convenient to change plug and changes integrally-built basic mechanical characteristic and do many-sided research, thus saves scientific research or engineering test cost; Assembly and disassembly can be realized by pad between coat board component and support single-piece, be convenient to change different profile and do many-sided research, thus save scientific research or engineering test cost; Pad and coat board component rigidity bonding can form groove screw, both by flat head screw, coat plate are firmly connected with support single-piece rigidity, and can ensure that again the outside surface of coat plate was smooth; Coat plate is provided with pressure measurement pipeline, pressure measurement and the vibration measuring of model can be taken into account, thus obtain wind loading and the wind-excited responese information of Highrise buildings simultaneously, it is achieved multifunctional application; Coat plate single-piece can layer assembly so that it is on pressure measurement pipeline shorten, reduce flow distortion, thus obtain comparatively accurate surface wind pressure data.
2, computer control pressure measuring system and vibration measuring system start work simultaneously, only need to adopt mouse to click, after accurately obtaining the Lag time difference of two systems, it is possible to realize the synchronous operation in theory of two kinds of acquisition systems.
3, the present invention by the Lag time difference of two kinds of acquisition systems by revising syringe loop method, it is possible to what make that in fact pressure measurement and vibration measuring realize is synchronous as far as possible, thus the pneumatic elastic effect of reflect structure is with the Changing Pattern of exercise intensity and feature more accurately.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the simultaneous multi-pressure measurement based on air spring pole and vibration measuring system, it is characterized in that, comprise the pressure measuring system (6) for air spring pole being carried out pressure measurement, for air spring pole is carried out vibration measuring vibration measuring system (8), simultaneously with the treater (7) that described pressure measuring system (6) and described vibration measuring system (8) connect and for realizing described pressure measuring system (6) and the adjuster (10) of the synchronous image data of described vibration measuring system (8);
Described pressure measuring system (6) comprises the scanning valve (62) that the testing tube (61) being connected with pressure tap on air spring pole is connected and the collector A (64) being connected described scanning valve (62) and described treater (7) by wire group A (63) respectively with described testing tube (61);
Described vibration measuring system (8) comprises the laser displacement gauge (81) being oppositely arranged with air spring pole, the electric charges amplify device (83) being connected with described laser displacement gauge (81) and the collector B (84) being connected with described electric charges amplify device (83) and described treater (7) respectively, all it is connected by wire group B (82) between described electric charges amplify device (83) and described laser displacement gauge (81) and between described electric charges amplify device (83) with described collector B (84), between described laser displacement gauge (81) and air spring pole (9) in a distance.
2. the simultaneous multi-pressure measurement based on air spring pole according to claim 1 and vibration measuring system, it is characterized in that, described adjuster (10) is syringe, the piston handle of described syringe is relative with measuring its described laser displacement gauge (81) moved and both distances are necessarily measured distance and arranged, and its pin mouth is connected with described scanning valve (62) by piezometric tube.
3. the simultaneous multi-pressure measurement based on air spring pole according to claim 1 and vibration measuring system, it is characterized in that, the coat board component (3) that this air spring pole comprises the mounting seat for installing (1), lower end is arranged on described mounting seat (1) plug (2) that is upper and that vertically arrange, be arranged on described plug (2) by support bar assembly (4) peripheral;
Described coat board component (3) comprises multiple coats plate single-piece (31) arranged successively from the bottom to top, described coat plate single-piece (31) comprises at least one piece of coat plate (311), the inside of described coat plate (311) is provided with piezometric tube, and its outside surface is provided with the pressure tap (A) communicated with described piezometric tube;
Described support bar assembly (4) comprises the multiple support single-pieces (41) arranged successively from the bottom to top, and the position, center of described support single-piece (41) is provided with for by the docking threaded hole (411) of described plug (2).
4. the simultaneous multi-pressure measurement based on air spring pole according to claim 3 and vibration measuring system, it is characterized in that, described mounting seat (1) is provided with the passage (11) and uniform multiple installation screw (12) for installing that pass for circuit; Described mounting seat (1) is the base being made up of steel plate, aluminium sheet or iron plate;
Described coat plate single-piece (31) comprises end to end four pieces of coat plates (311); In the horizontal plane, the cross section of described coat plate single-piece (31) is rectangular configuration; The material of described coat plate (311) is synthetic glass, has just connect mode by free of discontinuities and connect between connected two pieces of described coat plates (311); Gap between neighbouring two described coats plate single-piece (31) is 0.1-0.5cm;
The steel core bar that described plug (2) is I-shaped structure; Described support single-piece (41) is circle bar.
5. the simultaneous multi-pressure measurement based on air spring pole according to claim 4 and vibration measuring system, it is characterised in that, the lower end of described plug (2) is welded in described mounting seat (1); Described support single-piece (41) has just been connected on described plug (2) by described threaded hole (411).
6. the simultaneous multi-pressure measurement based on air spring pole according to claim 3 and vibration measuring system, it is characterized in that, also comprise pad (5), the side of described pad (5) connects described support single-piece (41), and its another side connects described coat plate (311); Described coat plate (311) is provided with the open holes for installing screw (B), being rigidly connected through described open holes (B) by flat head screw between described coat plate (311), pad (5) and support single-piece (41), the top of described flat head screw cap and the outside surface of described coat plate (311) are put down together.
7. the simultaneous multi-pressure measurement based on air spring pole according to claim 6 and vibration measuring system, it is characterised in that, described pad (5) is poly (methyl methacrylate) plate pad.
8. one kind realizes the modification method of simultaneous multi-pressure measurement and vibration measuring, it is characterised in that, comprise the following steps:
The first step: simultaneously started pressure measuring system (6) and vibration measuring system (8) by treater (7), the pressure data and the displacement data that obtain adjuster (10) piston motion respectively also transmit back treater (7), described pressure data comprises pressure time-process, and described displacement data comprises displacement time-histories;
2nd step: according to the variation characteristic of the pressure time-process obtained by adjuster (10) in the first step and displacement time-histories, show that the lag time of pressure measuring system (6) and vibration measuring system (8) is poor;
3rd step: poor according to the lag time in the 2nd step, the start time of treater (7) adjustment pressure measuring system (6) or vibration measuring system (8), make pressure measuring system (6) and vibration measuring system (8) image data simultaneously, it is achieved the simultaneous multi-pressure measurement of air spring pole and vibration measuring.
9. realize the modification method of simultaneous multi-pressure measurement and vibration measuring according to claim 8, it is characterized in that, in the described the first step: the concrete acquisition process of the pressure data that syringe piston moves is: start collector A (64) by treater (7), obtain pressure data by the testing tube (61) being connected with the pin mouth of syringe and the scanning valve (62) being connected with testing tube (61) and it is transferred to collector A (64), pressure data is passed to treater (7) by collector A (64) then, the data received are carried out process and output display by treater (7),
The concrete acquisition process of the displacement data that described syringe piston handle moves is: start collector B (84) by treater (7), obtain the displacement data of piston handle by laser displacement gauge (81) and the electric charges amplify device (83) that is connected with described laser displacement gauge (81) and it is transferred to collector B (84), displacement data is transferred to treater (7) by data acquisition unit B (84), and the data received are carried out process and output display by treater (7).
10. realize the modification method of simultaneous multi-pressure measurement and vibration measuring according to claim 8, it is characterized in that, the time difference simultaneously starting described collector A (64) and described collector B (84) by treater (7) in the described the first step is no more than 0.0002 second.
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