WO2017129223A1 - Simulateur de chute libre - Google Patents

Simulateur de chute libre Download PDF

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Publication number
WO2017129223A1
WO2017129223A1 PCT/EP2016/051450 EP2016051450W WO2017129223A1 WO 2017129223 A1 WO2017129223 A1 WO 2017129223A1 EP 2016051450 W EP2016051450 W EP 2016051450W WO 2017129223 A1 WO2017129223 A1 WO 2017129223A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
free
air
fall simulator
air duct
Prior art date
Application number
PCT/EP2016/051450
Other languages
German (de)
English (en)
Inventor
Boris Nebe
Manuel Dohr
Original Assignee
Indoor Skydiving Germany Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Indoor Skydiving Germany Gmbh filed Critical Indoor Skydiving Germany Gmbh
Priority to EP16702362.1A priority Critical patent/EP3407993A1/fr
Priority to PCT/EP2016/051450 priority patent/WO2017129223A1/fr
Publication of WO2017129223A1 publication Critical patent/WO2017129223A1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D23/00Training of parachutists
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63GMERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G31/00Amusement arrangements
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63GMERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G31/00Amusement arrangements
    • A63G2031/005Skydiving

Definitions

  • the invention relates to a free-fall simulator, with self-contained
  • a free-fall simulator is a device designed to allow a person in a vertically ascending air flow to pass through a person
  • Floating chamber flows through, to keep in a floating position.
  • free-fall simulators have a closed air duct. The air flow is via the air duct after its exit from an upper opening of the floating chamber to a lower opening of the
  • WO 2011/084114 A2 proposes a so-called
  • This object is achieved by a free-fall simulator according to claim 1.
  • the object is achieved in particular by a
  • Free-fall simulator (preferably with self-contained air circuit), the free-fall simulator comprising an air duct with a float chamber in which persons can float as a result of a vertically upwardly directed air flow, with a lower opening at a lower end and an upper opening at an upper end and at least one fan for generating the air flow.
  • the Freifal simulator has a
  • a key idea of the first aspect of the invention is to provide an opening in a bottom region of the pre-chamber so that the sound that occurs can be reduced in a simple manner. It can be under the
  • Pre-chamber effective room to increase the volume of the entire room, including the space of the antechamber and the space under the
  • this additional space dampens the pressure fluctuations in the antechamber, in particular as a resonance chamber.
  • insulating material can be introduced into the space under the prechamber.
  • a perforated plate may be provided (installed) as a partition wall between the prechamber and the space under the prechamber, so that pressure waves can be separated ("comminuted")
  • An opening degree of the bottom opening is preferably controllable, in particular controllable (preferably in at least three different stages).
  • the object is achieved in particular by a free-fall simulator (in particular of the type described above) with self-contained air circuit, comprising an air duct with a floating chamber in which persons can float as a result of a vertically upward air flow, with a lower opening at a lower end and an upper opening at an upper end and one or more blowers for generating an air flow, wherein an upper air duct in cross-section is preferably, at least partially (substantially) circular, in particular circular and wherein a contraction ratio preferably in a range of 2.0 to 3.5.
  • the contraction ratio is the ratio the cross-sectional area of an inlet nozzle entrance to the inlet nozzle exit.
  • a maximum total power of all provided blower (12) or the exact blower (12) may be less than 600 kW, preferably less than 500 kW.
  • a person can float in a supine or supine position, or (rather for sporting purposes or exercise purposes) a person (as in real free fall) also a fluidic "small" position
  • Free fall simulators which are deliberately configured (for example by the structure of the air duct, in particular the hover chamber and / or the configuration of a blower), suggest that particularly high air velocities, which would also allow a free fall simulation in a "head over" position (e.g. ) are not possible. It is therefore deliberately omitted the opportunity, even sporty challenging free-fall simulations or
  • the floating chamber is preceded by an inlet nozzle.
  • the input nozzle is preferably surrounded by a housing section (for example a concrete wall), so that a gap is formed between an outer wall of the inlet nozzle and the surrounding housing section.
  • the above-mentioned bottom opening in the prechamber preferably connects the prechamber and this space.
  • a volume the gap is more preferably at least 1.5 times, more preferably at least 2 times, even more preferably at least 5 times as large as a volume of the prechamber.
  • gap can be effectively used as a resonance chamber to compensate for pressure fluctuations in the antechamber.
  • the inlet nozzle can also (in particular in a neck section of the
  • Input nozzle at least one nozzle opening (preferably formed by a perforated plate).
  • the nozzle opening is preferably connected to the intermediate space. This results in a volume flow in the intermediate space and optionally through the bottom hole in the prechamber (since the pressure in the nozzle, in particular in the neck portion of the nozzle is higher than in the prechamber). This mass flow reduces occurring cavity resonances (in addition to the effect of increasing the volume through the cavity)
  • the space is (apart from the openings mentioned) of walls, such as concrete walls, in particular completely, enclosed and preferably pressure-tight to the outside.
  • the bottom opening preferably has an area of at least 500 cm 2 , more preferably at least 1000 cm 2 , even more preferably at least 2000 cm 2 , even more preferably at least 5000 cm 2 , even more preferably at least 1000 cm 2 .
  • the bottom opening may form at least 2%, preferably at least 5%, more preferably at least 10%, even more preferably at least 20%, even more preferably at least 50% of the bottom and / or an opening between the float chamber and the prechamber.
  • the bottom opening may be the floor (apart from one with openings
  • cover such as a grille
  • the floor is completely open (apart from a cover which prevents people from falling through the opening).
  • the bottom opening may be covered with a cover, which in turn has a plurality of cover openings, such as a cover grille.
  • exactly one fan is provided. In alternative embodiments, more than one blower,
  • (at least) two, (at least) three or (at least) four fans may be provided.
  • the free-fall simulator is configured so that a maximum possible speed of the air flow in the floating chamber (11) does not exceed a value of 220 km / h, in particular 200 km / h.
  • a fan when a fan is provided, this may have a diameter of 3 to 7 m, preferably 4 to 6 m, even more preferably 4.5 to 5.5 m, for example 5 m.
  • a comparatively small, "low-power" fan is used, which nevertheless a hovering of persons (for example, up to 120 kg) in a prone position or a hovering
  • a height of the free-fall simulator is a maximum of 22 m, preferably a maximum of 20 m (calculated from a lowest point of the free-fall simulator).
  • the overall height of the free-fall simulator can be a maximum of 12 m, preferably a maximum of 10 m.
  • a comparatively low height of the free-fall simulator is proposed, which among other things by an upper air duct (to the blower) with a round cross-section (and thus eliminating the need for space-consuming intermediate pieces in the two vertical air duct sections, from round to (right) -eckig and conversely), a low contraction ratio of preferably 2.0 to 3.5 and / or a design with only one fan can be achieved.
  • a wall of the floating chamber (apart from a manhole for entering the floating chamber) without Apertures formed.
  • perforated plates in this area could also achieve a reduction in noise or a reduction in "noise".
  • Bottom opening in the antechamber can, however, on such openings or
  • Perforated sheets are dispensed in the floating chamber.
  • Floating chamber may be formed (at least substantially completely) transparent. This facilitates an observation of the persons hovering.
  • a free-fall simulator in particular self-contained air circuit, preferably of the type described above, comprising an air duct (10) with a floating chamber (11) in which persons can float as a result of a vertically upward air flow, with a lower floating chamber opening at a lower end and an upper floating chamber opening at an upper end and at least one fan for generating the air flow.
  • the floating chamber (11) is preceded by an inlet nozzle (22), wherein in a wall of the inlet nozzle, preferably in a neck portion of a
  • Nozzle opening in particular a perforated plate, for the exchange of air
  • the air duct (10) for guiding the air has a lower portion (18), wherein in the lower portion (18) has a lower opening (33) for
  • an upper opening for the exchange of air, in particular outlet or entry of air.
  • the lower and upper openings are preferably connected to an outer side of the free-fall simulator (ie the atmosphere), for example via corresponding pipes.
  • the upper opening ensures (approximately) atmospheric pressure in the hover chamber.
  • air may leak due to the overpressure in the lower air duct; a corresponding amount of air can then enter through the upper opening as fresh air again.
  • the lower opening is closed and the upper opening is open.
  • the upper opening in the intermediate space has the advantages of a (practically) missing negative pressure in the pre-chamber and in the flight chamber (which brings static advantages) and that the need for a pressure lock is eliminated, so the structure of the free-fall simulator is simplified. In any case, it will open
  • At least one fan may be provided to assist the air exchange (in particular by blowing or sucking out) through the lower and / or upper opening.
  • the free-fall simulator may be configured so that no further opening, in particular in an upper portion of the air duct, is provided apart from the upper and / or lower opening.
  • cooling means in addition to or as an alternative to air exchange may generally be provided to cool the air flow in the free-fall simulator.
  • the connecting means for connecting the lower and / or upper opening to the outside of the free-fall simulator may be made comparatively thick and / or connected to a silencer and / or with an optionally electric
  • the lower opening or the corresponding lower connection device can be temporarily switched to a (more intensive) ventilation (in which case air escapes due to the overpressure in the lower air guide).
  • Closing devices may be controllable or even controllable, for example via a (possibly central) system control in a control room.
  • the lower and / or upper opening can optionally be closed completely and / or gradually (in discrete or continuous steps).
  • An opening degree (ie, for example, a half-open state or a three-quarter open state) of the lower and / or upper opening may be controllable, in particular controllable, be.
  • the lower and / or the upper opening can be assigned (each) a silencer. This reduces noise pollution.
  • the free-fall simulator or components thereof made of metal or plastic, in particular fiber-reinforced, preferably
  • Air duct formed of fiber-reinforced, in particular glass fiber reinforced plastic.
  • the input nozzle or one or more diffusers of the air duct may (at least substantially), possibly completely, be formed of a fiber-reinforced, in particular glass fiber reinforced plastic.
  • these elements may also be formed of metal.
  • the lower air guide is (at least substantially),
  • the lower air duct can also be made of (fiber-reinforced) plastic,
  • first vertical air guide for example, an air guide downstream of the float chamber
  • second vertical air guide ie, for example, an air guide, the downstream of the upper
  • Air duct adjoins can (at least substantially), if appropriate, completely made of metal (or alternatively also plastic, in particular
  • the upper air duct is made of glass fiber reinforced plastic
  • the air ducts preferably the upper air duct, made of a (glass fiber reinforced) plastic in combination with a round cross-section reduces synergistically weight and manufacturing costs, since round element can be made particularly easily from (glass fiber reinforced) plastic.
  • the design of fiber-reinforced plastic in terms of the upper air duct), the weight of the upper air duct is reduced, which is advantageous on the overall statics and required
  • an upper air duct of the air duct at least partially has a round cross-section.
  • a lower air duct of the air duct may at least partially have a polygonal cross section.
  • the floating chamber can be made comparatively small (larger floating chambers are generally more for the practice of free-fall, for example, for teams).
  • the flight chamber (on a ground network) may be less than 3.9 m, preferably less than 3.7 m, in a (normal, for example at a height of 2.1 m above the ground or at ground level) ground plane), the float chamber may have a diameter of less than 4.3 m, preferably less than 4.0 m.
  • the free-fall simulator may be designed and configured to provide a maximum speed of the
  • Airflow is achieved, in which a person is able to float in prone position up to 120 kg and in supine position up to 90 kg (without bat suits).
  • the floating chamber can be 5 to 7, in particular 6 m high. Furthermore, the floating chamber may have a round (circular) or polygonal (12-sided) wall. The float chamber can also go up
  • the lower opening and / or the upper opening and / or the nozzle opening and / or the bottom opening may be controllable with respect to their degree of opening, in particular controllable (discrete or continuous, eg in at least two or at least three stages).
  • FIG. 1 shows a schematic view of a free-fall simulator according to the invention
  • FIG. 2 shows a section of a free-fall simulator according to the invention
  • Fig. 3 a detail of Figure 2 with further details.
  • FIG. 1 shows a schematic view of a device according to the invention
  • Free-fall simulator with a self-contained air circulation, which is formed by an air duct 10 having a floating chamber 11.
  • an air duct 10 having a floating chamber 11.
  • the floating chamber can be generated by a fan 12 an upward airflow, so that persons (at least in abdominal and
  • a normal altitude is indicated by the reference numeral 13 (dashed line).
  • a bottom of the floating chamber 11 is identified by the reference numeral 14
  • the free-fall simulator has a first vertical section 15, in which also the floating chamber 11 is located and in which the air flow flows from bottom to top; an upper portion 16; a second vertical portion 17 in which the fan 12 is arranged; and a lower portion 18.
  • first vertical section 15 in which also the floating chamber 11 is located and in which the air flow flows from bottom to top
  • second vertical portion 17 in which the fan 12 is arranged
  • lower portion 18 In corner areas 19 (only hinted) Umlenklamellen 20 may be provided.
  • a cross-section of the air flow channel is partly round and partly angular, for example quadrangular, in particular square.
  • Transfer section 21 (which only apparently has the shape of a nozzle, due to the two-dimensional representation) will be a round cross-section of the
  • Air duct 10 converted into an angular cross-section (in
  • An inlet nozzle 22 which is located below the floating chamber 11, also serves as a second transfer section in which the angular cross-section of the air duct 10 is again converted into a round cross-section (viewed in the flow direction).
  • the upper portion 16 thus has a round cross-section and the lower portion 18 is an angular.
  • the floating chamber 11 forms a diffuser (thus widens upwards), so that prevails in higher areas, a lower air velocity than in lower areas.
  • an (optional) intermediate piece 23 (which is straight, expanding or contracting) is arranged before the fan 12, an (optional) intermediate piece 23 (which is straight, expanding or contracting) is arranged before the fan 12, an (optional) intermediate piece 23 (which is straight, expanding or contracting) is arranged before the fan 12, an (optional) intermediate piece 23 (which is straight, expanding or contracting) is arranged.
  • Another diffuser 24 is located downstream of the fan 12, in the second vertical section 17 of the air duct 10.
  • a follower 25 is provided.
  • the flight chamber may be 7 m high and / or may have a circular wall and / or may have a diameter of 3.66 m at the ground (net) and / or 3.96 m at a standard altitude 13 and / or 4.72 m have at the upper end.
  • One or more of the corner regions 19 can be designed to be expanding, ie at the same time form a diffuser. As a result, the height and thus the acceptance and the cost of the free-fall simulator can also be reduced.
  • the blower 12 may have a diameter of 5 m and / or a maximum power of 500 kW.
  • corner portions 19 or the diffusers 23, 24 may be made either
  • Plastic in particular fiber-reinforced plastic, preferably glass fiber reinforced plastic and / or metal (in particular comprising aluminum or an aluminum alloy) may be formed.
  • the Umlenklamellen 20 may be cooled.
  • the inlet nozzle 22 may (preferably) be made of plastic, in particular fiber-reinforced plastic, preferably glass-fiber reinforced plastic, and / or of metal (for example steel).
  • first vertical section 15 or at least the inlet nozzle 22 may be housed in a housing, preferably a concrete housing.
  • a maximum speed that can be allowed by the fan 12, the flow velocity in the floating chamber 11, either at the float chamber bottom 14 or in the range of normal altitude 13, may be 220 km / h, preferably 200 km / h (eg 2m above the
  • the overall height of the free-fall simulator may be less than 20 m.
  • Figure 2 shows a schematic section of an inventive
  • Freefall simulator Specifically, a floating chamber 11 and an inlet nozzle 22 can be seen, as well as an antechamber 26, via which the floating chamber 11 can be entered.
  • the reference numeral 37 shows an opening between
  • Floating chamber 11 and antechamber 26 To the floating chamber 11 and in particular the input nozzle 22, a (concrete) housing 27 is arranged so that between the housing 27 and an outer wall 28 of the inlet nozzle 22, a gap 29 is formed. The gap 29 is over a
  • Access opening 30 accessible.
  • the bottom opening 31 is shown schematically in FIG.
  • a lower opening 33 (indicated by a black circle) is provided for replacement, in particular outlet or inlet, of air.
  • an upper opening 34 is provided, which is also designed to exchange air, in particular outlet or entry of air.
  • the lower opening 33 is located in the lower portion 18 of the air duct 10, the upper opening 34 connects the space 29 with an outer side (the atmosphere).
  • an (approximately) atmospheric pressure can be set in the pre-chamber 26 and in the floating chamber 11.
  • the upper opening 34 fulfills a dual function, namely the realization of an (at least approximately) atmospheric pressure, which improves the statics and thus reduces the manufacturing costs.
  • the lower opening 33 and the upper opening 34 can via corresponding connecting lines, in particular connecting pipes with the outside of the Free-fall simulator, to exchange air, be connected.
  • a first (normal) mode of operation the lower opening 33 is closed and the upper opening 34 is open.
  • the lower opening 33 can be opened, then due to the pressure in the lower portion 18 of the air duct 10 in the lower portion 18 air escapes and is sucked through the upper opening 34.
  • the openings 33, 34 can be associated with corresponding closing devices, the
  • openings 33, 34 muffler may be assigned.
  • a neck portion 35 of the input nozzle 22 may be provided a schematically illustrated as a black rectangle perforated plate 36.

Abstract

La présente invention concerne un simulateur de chute libre comprenant un circuit fermé de circulation d'air comprenant une conduite d'air (10) et une chambre de vol (11) dans laquelle des personnes peuvent flotter sous l'effet d'un flux d'air vertical dirigé vers le haut, présentant une ouverture inférieure à une extrémité inférieure et une ouverture supérieure à l'extrémité supérieure, ainsi qu'une soufflerie (12) pour générer le flux d'air, et une avant-chambre (26) dotée d'un fond (32) et permettant d'entrer dans la chambre de vol (11), le fond de l'avant-chambre (26) présentant une ouverture (31) destinée à réduire le bruit.
PCT/EP2016/051450 2016-01-25 2016-01-25 Simulateur de chute libre WO2017129223A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16702362.1A EP3407993A1 (fr) 2016-01-25 2016-01-25 Simulateur de chute libre
PCT/EP2016/051450 WO2017129223A1 (fr) 2016-01-25 2016-01-25 Simulateur de chute libre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/051450 WO2017129223A1 (fr) 2016-01-25 2016-01-25 Simulateur de chute libre

Publications (1)

Publication Number Publication Date
WO2017129223A1 true WO2017129223A1 (fr) 2017-08-03

Family

ID=55273227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/051450 WO2017129223A1 (fr) 2016-01-25 2016-01-25 Simulateur de chute libre

Country Status (2)

Country Link
EP (1) EP3407993A1 (fr)
WO (1) WO2017129223A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019114928A1 (fr) * 2017-12-12 2019-06-20 Indoor Skydiving Germany Gmbh Simulateur de chute libre
FR3079425A1 (fr) * 2018-03-29 2019-10-04 Robert Georges Grignon Simulateur de chute a circuit ferme

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022001707U1 (de) 2022-08-01 2022-12-12 Roland Carl Freiflugsimulator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484953A (en) * 1967-05-15 1969-12-23 Ray H Norheim Jr Apparatus for simulating free fall through air
JPH09327540A (ja) * 1996-06-11 1997-12-22 Hitachi Ltd 風洞装置
US6083110A (en) * 1998-09-23 2000-07-04 Sky Venture, Inc. Vertical wind tunnel training device
WO2004026687A2 (fr) * 2002-08-20 2004-04-01 Aero Systems Engineering Inc. Simulateur de chute libre
US20060025227A1 (en) * 2004-07-30 2006-02-02 Metni N A Recirculating vertical wind tunnel skydiving simulator
DE102008046759A1 (de) * 2008-09-11 2010-03-18 Indoor Skydiving Bottrop Gmbh Freifallsimulator
WO2011044860A1 (fr) * 2009-10-12 2011-04-21 Strojirna Litvinov Spol. S.R.O Simulateur de chute libre
WO2011084114A2 (fr) * 2010-01-06 2011-07-14 Stm Savunma Teknolojileri Muh. Tic. A.S. Cabine d'absorbeur de résonance à écoulement sur des ouvertures de surface

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484953A (en) * 1967-05-15 1969-12-23 Ray H Norheim Jr Apparatus for simulating free fall through air
JPH09327540A (ja) * 1996-06-11 1997-12-22 Hitachi Ltd 風洞装置
US6083110A (en) * 1998-09-23 2000-07-04 Sky Venture, Inc. Vertical wind tunnel training device
WO2004026687A2 (fr) * 2002-08-20 2004-04-01 Aero Systems Engineering Inc. Simulateur de chute libre
US20060025227A1 (en) * 2004-07-30 2006-02-02 Metni N A Recirculating vertical wind tunnel skydiving simulator
DE102008046759A1 (de) * 2008-09-11 2010-03-18 Indoor Skydiving Bottrop Gmbh Freifallsimulator
WO2011044860A1 (fr) * 2009-10-12 2011-04-21 Strojirna Litvinov Spol. S.R.O Simulateur de chute libre
WO2011084114A2 (fr) * 2010-01-06 2011-07-14 Stm Savunma Teknolojileri Muh. Tic. A.S. Cabine d'absorbeur de résonance à écoulement sur des ouvertures de surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019114928A1 (fr) * 2017-12-12 2019-06-20 Indoor Skydiving Germany Gmbh Simulateur de chute libre
FR3079425A1 (fr) * 2018-03-29 2019-10-04 Robert Georges Grignon Simulateur de chute a circuit ferme

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