CN104653693A - Energy absorption simulation test device - Google Patents
Energy absorption simulation test device Download PDFInfo
- Publication number
- CN104653693A CN104653693A CN201310598136.2A CN201310598136A CN104653693A CN 104653693 A CN104653693 A CN 104653693A CN 201310598136 A CN201310598136 A CN 201310598136A CN 104653693 A CN104653693 A CN 104653693A
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- China
- Prior art keywords
- energy absorption
- cylinder body
- air pressure
- hydraulic cylinder
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Vibration Dampers (AREA)
Abstract
The invention relates to an energy absorption simulation test device, in particular to design of a test device for a simulation impact environment and a crash resisting environment and the like of helicopters and aeronautics and astronautics devices or structural components, and belongs to the impact energy absorption structure design technical field. The energy absorption simulation test device comprises a valve rod (1), a hydraulic cylinder body (2), a valve plate (3), a piston (4), an air pressure cylinder body (5), a seal ring (6), an end cover (7), an oil injection valve (8) and an inflation valve (9). The energy absorption simulation test device can be designed in a light type (small load) or heavy type (large load) structure according to different external use demands, can be designed in forms of a standard impact energy absorption test device, a collision prevention buffer energy absorption device, a vibration isolation device and the like according to demands of different usage occasion, has good universality, and adapts to different engineering application scenarios.
Description
Technical field
The invention belongs to the structure-design technique field of apparatus with shock absorbing, particularly relate to the design of the testing apparatuss such as the simulation shock environment to helicopter, aerospace flight vehicle or structure member, anti-crash environment.Apparatus of the present invention are also widely used in other industry application, as: the collision energy-absorbing of the traffic tool or buffer shock-absorbing, the Aseismatic Design of heavy construction, and the Vibration Absorbing System Design etc. of structure.
Background technique
In order to meet the shock test specifications such as aircraft anti-crash to the requirement of energy-absorbing waveform modelling, the design method usually adopted both at home and abroad has material energy absorption, as: rubber material, soft metal etc.; Shape energy-absorbing, as: crumple pipe, cone metal etc.; Hydraulic damping hole energy-absorbing, as: leaked liquid formula chamber wall gradient damping hole designs.The feature of material and shape energy-absorbing is the damaged deformation characteristic energy-absorbing utilizing material, and its energy absorption curve is by certain material behavior, or geometrical shape and size are determined, its shortcoming is the not reproducible use of energy absorption device.Leaked liquid formula chamber wall gradient damping hole energy-absorbing mode is that the gradient damping hole of some varying numbers that a kind of piston rod extruding liquid is arranged vertically via hydraulic pressure cavity wall flows out, realize energy rate of debarkation in different piston stroke different, energy absorption curve realizes according to the gradient damping hole distributed quantity or size that calculate rear manual adjustment wall.The shortcoming of this design is: the discontinuously arranged curve of endergonic process that causes of the gradient due to damping hole presents certain ladder jitter feature; Open type design causes the fluid that leaks to ambient contamination, or needs special liquid to store recovery pond; Need the manual damping hole blocking again changeing chamber wall after the amendment of energy-absorbing waveform, waste time and energy.
Summary of the invention
The object of the invention is:
Design a kind of enclosed energy-absorbing testing apparatus, both ensured to impact endergonic process continuous, automatically reseting and reusing after energy absorption device use can be met again.
Technological scheme of the present invention is:
A kind of closed adaptive damping energy absorption device, this device comprises valve rod 1, hydraulic cylinder 2, valve plate 3, piston 4, air pressure cylinder body 5, seal ring 6, end cap 7, fuel feeding valve 8 and gas charging valve 9, wherein, the larger end of valve rod 1 sectional area of variable cross section is fixedly mounted on hydraulic cylinder 2 left end, valve rod 1 sectional area of variable cross section comparatively small end periphery coordinates with valve plate 3 central through bore small―gap suture, valve plate 3 is fixedly installed in air pressure cylinder body 5 left end, piston 4 is arranged in air pressure cylinder body 5, can be free to slide vertically, air pressure cylinder body 5 after assembling has valve plate one end to be installed in hydraulic cylinder 2, can slide axially along hydraulic cylinder 2 inwall, seal ring 6 is nested in hydraulic cylinder 2 right-hand member head bore, and compressed by the end cap 7 being arranged on hydraulic cylinder 2 right-hand member.
Advantage of the present invention is: the present invention reasonably takes full advantage of the interior space dimension of hydraulic cylinder 2 and pneumatic cylinder body 5, avoids leaked liquid, achieves the closed design of integration of energy absorption device; Use the valve rod 1 of variable cross section to design, ensure that valve rod 1 and valve plate 3 form the damping hole of continuous variable cross section in endergonic process, ensure that the energy constant absorption (the smooth non-jitter of energy absorption curve is impacted) in whole impact stroke; Apparatus of the present invention can carry usage requirement outward according to difference, be designed to light-duty (side crops industry) or heavy (large load) structure, can according to different use occasion needs, be designed to the forms such as standard impulse energy-absorbing testing apparatus, anti-collision crash energy absorption equipment, isolation mounting, there is good versatility and adapt to different engineer applied occasions.
Accompanying drawing explanation
Fig. 1 is explosive view of the present invention;
Fig. 2 is main pseudosection of the present invention;
Fig. 3 is A-A cutaway sectional view of the present invention;
Fig. 4 is certain embodiment's energy absorption characteristics curve of the present invention.
Embodiment
Below the present invention is described in further detail.See Fig. 1, a kind of closed adaptive damping energy absorption device, this device comprises valve rod 1, hydraulic cylinder 2, valve plate 3, piston 4, air pressure cylinder body 5, seal ring 6, end cap 7, fuel feeding valve 8 and gas charging valve 9, wherein, inside and outside described hydraulic cylinder 2, cross section is circular, the larger end of valve rod 1 sectional area of variable cross section is fixedly mounted on hydraulic cylinder 2 left end, valve rod 1 sectional area of variable cross section comparatively small end periphery coordinates with valve plate 3 central through bore small―gap suture, inside and outside described air pressure cylinder body 5, cross section is circular, valve plate 3 is fixedly installed in air pressure cylinder body 5 left end, described piston 4 cross section is circular, outer round surface fluting is provided with seal ring, piston 4 is arranged in air pressure cylinder body 5, axially can be free to slide along air pressure cylinder body 5 inwall, air pressure cylinder body 5 has one end of valve plate 3 to be installed in hydraulic cylinder 2, can slide axially along hydraulic cylinder 2 inwall, seal ring 6 is nested in hydraulic cylinder 2 right end circular groove, and compressed by the end cap 7 being arranged on hydraulic cylinder 2 right-hand member, fuel feeding valve 8 is positioned on hydraulic cylinder 2, gas charging valve 9 is positioned on air pressure cylinder body 5.
The continuous variable cross section round bar that described valve rod 1 is slotted for trisection.
Described valve plate 3 is circular sheet, and be spirally connected and be arranged on air pressure cylinder body 5 one end, hole is opened at center, and hole shape is consistent with valve rod 1 maximum cross-section.
Seal ring on described piston 4 is O RunddichtringO.
Described valve rod 1 is fixedly mounted on hydraulic cylinder 2 one end by being spirally connected.
Before using, first by gas charging valve 9, air pressure cylinder body 5 is filled with regulation air pressure (1.5 standard atmospheric pressure), piston 4 is near valve plate 3 side, and then hydraulic cylinder 2 fills liquid (water or hydraulic oil) completely by fuel feeding valve 8.During use, hydraulic cylinder 2 is fixedly installed on architecture basics, outer carrying acts on air pressure cylinder body 5 termination vertically, promotion air pressure cylinder body 5 extrudes liquid in hydraulic cylinder 2 and flows in air pressure cylinder body 5 through the gap between valve plate 3 and valve rod 1, fluid pressure effect promotes piston 4 and moves to the other end, gas in compression gas-pressure cylinder body 5, thus realize the function of damping buffering energy-absorbing, after outer year release completes, in air pressure cylinder body 5 under gas pressure effect, energy absorption device can return to original state, reusable.
During an example of the present invention is implemented; certain spacecraft landing device buffer; employing can reply design; hydraulic cylinder is arranged in protected landing module structure; air pressure cylinder body termination is arranged on ground structure, and protected device is this device of encapsulation as required, and impulsive load during landing is imported into by air pressure cylinder body far-end; through apparatus of the present invention snubber impact energy, realize safe landing.
Claims (5)
1. a closed adaptive damping energy absorption device, it is characterized in that, this device comprises valve rod (1), hydraulic cylinder (2), valve plate (3), piston (4), air pressure cylinder body (5), seal ring (6), end cap (7), fuel feeding valve (8) and gas charging valve (9), wherein, the inside and outside cross section of described hydraulic cylinder (2) is circular, the larger end of valve rod (1) sectional area of variable cross section is fixedly mounted on hydraulic cylinder (2) left end, valve rod (1) sectional area of variable cross section comparatively small end periphery coordinates with valve plate (3) central through bore small―gap suture, the inside and outside cross section of described air pressure cylinder body (5) is circular, valve plate (3) is fixedly installed in air pressure cylinder body (5) left end, described piston (4) cross section is circular, outer round surface fluting is provided with seal ring, piston (4) is arranged in air pressure cylinder body (5), axially can be free to slide along air pressure cylinder body (5) inwall, air pressure cylinder body (5) has one end of valve plate (3) to be installed in hydraulic cylinder (2), can slide axially along hydraulic cylinder (2) inwall, seal ring (6) is nested in hydraulic cylinder (2) right end circular groove, and compressed by the end cap (7) being arranged on hydraulic cylinder (2) right-hand member, fuel feeding valve (8) is positioned on hydraulic cylinder (2), gas charging valve (9) is positioned on air pressure cylinder body (5).
2. a kind of closed adaptive damping energy absorption device as claimed in claim 1, is characterized in that, the continuous variable cross section round bar that described valve rod (1) is slotted for trisection.
3. a kind of closed adaptive damping energy absorption device as claimed in claim 1, is characterized in that, described valve plate (3) is circular sheet, and be spirally connected and be arranged on air pressure cylinder body (5) one end, hole is opened at center, and hole shape is consistent with valve rod (1) maximum cross-section.
4. the closed adaptive damping energy absorption device of the one as described in one of claim 1-3, is characterized in that, the seal ring on described piston (4) is O RunddichtringO.
5. a kind of closed adaptive damping energy absorption device as claimed in claim 4, is characterized in that, described valve rod (1) is fixedly mounted on hydraulic cylinder (2) one end by being spirally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598136.2A CN104653693A (en) | 2013-11-25 | 2013-11-25 | Energy absorption simulation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598136.2A CN104653693A (en) | 2013-11-25 | 2013-11-25 | Energy absorption simulation test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653693A true CN104653693A (en) | 2015-05-27 |
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ID=53245180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310598136.2A Pending CN104653693A (en) | 2013-11-25 | 2013-11-25 | Energy absorption simulation test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104653693A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204787A (en) * | 2018-10-25 | 2019-01-15 | 中航飞机起落架有限责任公司 | Vehicle frame folding and unfolding buffer unit and undercarriage |
| CN111075850A (en) * | 2020-01-11 | 2020-04-28 | 沈阳工具标准件制造有限公司 | Mechanical impact-resistant overload protection device |
| CN111623079A (en) * | 2020-05-25 | 2020-09-04 | 北京凌空天行科技有限责任公司 | Flexible aluminium honeycomb buffer |
| CN112982715A (en) * | 2021-05-19 | 2021-06-18 | 湖南大学 | Three-dimensional shock isolation device based on four-bar structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86202826U (en) * | 1986-05-08 | 1987-05-06 | 蒋大庚 | Conic-three ridge main fuel spray nozzle needle for level-in evaporator |
| CN86208412U (en) * | 1986-10-30 | 1988-02-10 | 费水福 | Air-capsule hydraulic shock-absorber |
| DE4030033A1 (en) * | 1990-09-22 | 1992-03-26 | Boge Ag | Vehicle shock absorber with inner and outer movable pipe - has gas compartment with pad, operating piston, separating piston, and three liq. compartments |
| CN2188134Y (en) * | 1993-12-08 | 1995-01-25 | 王勇 | Device for use of jolting energy of car |
| CN2321975Y (en) * | 1998-04-21 | 1999-06-02 | 北京天和新技术开发公司 | Liquid and gas damper |
| CN2458459Y (en) * | 2000-12-28 | 2001-11-07 | 沈阳新型起重机器厂 | Energy-storage liquid vibration suppression device |
| CN2693505Y (en) * | 2003-12-23 | 2005-04-20 | 煤炭科学研究总院太原分院 | Oil-gas type buffering and damping oil cylinder for vehicle for mining |
| CN101639106A (en) * | 2009-08-25 | 2010-02-03 | 深圳市中车业成实业有限公司 | Piston-type hydro-pneumatic buffer |
-
2013
- 2013-11-25 CN CN201310598136.2A patent/CN104653693A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86202826U (en) * | 1986-05-08 | 1987-05-06 | 蒋大庚 | Conic-three ridge main fuel spray nozzle needle for level-in evaporator |
| CN86208412U (en) * | 1986-10-30 | 1988-02-10 | 费水福 | Air-capsule hydraulic shock-absorber |
| DE4030033A1 (en) * | 1990-09-22 | 1992-03-26 | Boge Ag | Vehicle shock absorber with inner and outer movable pipe - has gas compartment with pad, operating piston, separating piston, and three liq. compartments |
| CN2188134Y (en) * | 1993-12-08 | 1995-01-25 | 王勇 | Device for use of jolting energy of car |
| CN2321975Y (en) * | 1998-04-21 | 1999-06-02 | 北京天和新技术开发公司 | Liquid and gas damper |
| CN2458459Y (en) * | 2000-12-28 | 2001-11-07 | 沈阳新型起重机器厂 | Energy-storage liquid vibration suppression device |
| CN2693505Y (en) * | 2003-12-23 | 2005-04-20 | 煤炭科学研究总院太原分院 | Oil-gas type buffering and damping oil cylinder for vehicle for mining |
| CN101639106A (en) * | 2009-08-25 | 2010-02-03 | 深圳市中车业成实业有限公司 | Piston-type hydro-pneumatic buffer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204787A (en) * | 2018-10-25 | 2019-01-15 | 中航飞机起落架有限责任公司 | Vehicle frame folding and unfolding buffer unit and undercarriage |
| CN111075850A (en) * | 2020-01-11 | 2020-04-28 | 沈阳工具标准件制造有限公司 | Mechanical impact-resistant overload protection device |
| CN111623079A (en) * | 2020-05-25 | 2020-09-04 | 北京凌空天行科技有限责任公司 | Flexible aluminium honeycomb buffer |
| CN112982715A (en) * | 2021-05-19 | 2021-06-18 | 湖南大学 | Three-dimensional shock isolation device based on four-bar structure |
| CN112982715B (en) * | 2021-05-19 | 2021-07-23 | 湖南大学 | Three-dimensional shock isolation device based on four-bar structure |
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Application publication date: 20150527 |
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| RJ01 | Rejection of invention patent application after publication |