CN110487505A - From displacement buffer-type shock tunnel - Google Patents
From displacement buffer-type shock tunnel Download PDFInfo
- Publication number
- CN110487505A CN110487505A CN201910776562.8A CN201910776562A CN110487505A CN 110487505 A CN110487505 A CN 110487505A CN 201910776562 A CN201910776562 A CN 201910776562A CN 110487505 A CN110487505 A CN 110487505A
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- China
- Prior art keywords
- hole body
- ring
- buffering ring
- connecting line
- elastic connecting
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 230000035939 shock Effects 0.000 title claims abstract description 41
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 25
- 230000003139 buffering effect Effects 0.000 claims abstract description 66
- 239000000872 buffer Substances 0.000 claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 206010058109 Hangnail Diseases 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- G01M9/02—Wind tunnels
- G01M9/04—Details
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Vibration Dampers (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of from displacement buffer-type shock tunnel, buffer unit including hole body and for being buffered to the hole body, the buffer unit includes at least one buffing pad, the buffing pad includes pedestal, buffering ring and elastic connecting line, the buffering ring is fixed on pedestal by the elastic connecting line, the buffering ring coaxial sleeve is set to the outside of hole body, two limiting sections for being limited respectively to buffering ring both ends are provided on the hole body, the buffering ring buffers hole body when moving axially for hole body.The axial impact force that impulse type wind-tunnel can enough be buffered, reduces and restores it by the axial displacement after impact force, reduce the operation and maintenance cost of wind-tunnel.
Description
Technical field
The present invention relates to and high-speed aircraft ground wind-tunnel experimental assembly technical field, and in particular to it is a kind of from displacement buffering
Formula shock tunnel.
Background technique
Shock tunnel refers to recycling permanent expanding method to generate hypersonic speed real first with shock wave compression experimental gas
Test the wind-tunnel of air-flow.It is by a shock tube and is connected in the wind-tunnel main components such as jet pipe, experimental section thereafter and forms.Shock wave wind
Hole is strongly broken through drive section and by the stainless steel diaphragm between drive section, is being driven using the high pressure gas for being stored in drive section
Dynamic section forms unsteady incident shock, compresses by the experimental gas in drive section, makes up to height required for test simulation
Mild condition of high voltage.Since the runing time of shock tunnel is extremely short (about in ms magnitude), the shock wave and high-speed gas of high-speed motion
Effect can form huge shock loading in wind turbine apparatus, make wind tunnel body that space displacement to a certain extent occur.Such as
Fruit keeps wind-tunnel spatial position not occur mobile to answer engineering is practical by the support (such as armored concrete wall construction) of hardness
With being infeasible.Reason first is that the short time shock loading of impulse wind tunnel is huge, any compulsory ground can be destroyed
Support construction；The second is then impact loading connects wind-tunnel locally in wind-tunnel tube body when rigid support is when wind-tunnel end
Stress condition deteriorates, and can break ring wind-tunnel facilities.Therefore, current method is that impulse type wind-tunnel and shock tunnel are integrally placed
In on one slidably track, it is allowed to move on wind-tunnel axial direction.
Notification number is that the Chinese invention application of CN103115745B discloses a kind of hypersonic shock tunnel hanging pendulum type punching
Buffer unit is hit, using wind tunnel body when by active force, impact force action is made in the weight block of suspension, the gravity of weight block
With being formed to the buffer function of wind tunnel body axial direction impulsive force, while after weight block is hit, reversed impulse action power is formed
Wind-tunnel tube body is acted on, moves wind-tunnel tube body in the opposite direction, the axial impact that buffering impulse type shock tunnel generates carries
Lotus, and then reduce the overall axial displacement of shock tunnel.There is also various problems for such buffering method, due to the fortune of shock tunnel
The row time is extremely short, therefore is also to belong to rigid connection by the end thereof contacts of weight block and hole body, and weight block is by impact force, shape
State is also greatly, weight block or hole body also to be damaged using such mode from the static instantaneous impact to movement, being subject to,
And due to the reaction process of hole experiment in vivo gas complexity, high pressure gas is constantly with hole body friction, to the work of impact rear film
With also irregular, therefore high pressure gas is easy to generate hole body certain twisting resistance after impact-response, therefore, how to buffer hole
The torsion of body guarantees that the original state of its angle is also extremely important.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of displacement buffer-type shock tunnel certainly, it being capable of enough buffering pulses
The axial impact force of type wind-tunnel reduces and restores it by the axial displacement after impact force, reduce wind-tunnel operation and maintenance at
This.
From displacement buffer-type shock tunnel, buffer unit including hole body and for being buffered to the hole body, institute
Stating buffer unit includes at least one buffing pad, and the buffing pad includes pedestal, buffering ring and elastic connecting line, the buffering ring
It is fixed on pedestal by the elastic connecting line, the buffering ring coaxial sleeve is on the outside of hole body, the hole body
Two limiting sections for being limited respectively to buffering ring both ends are provided with, when the buffering ring is moved axially for hole body pair
Hole body is buffered.
Further, shape is provided on the hole body in elliptical oval section, the ellipse section between two limiting sections,
The buffering ring is the ellipse to match with the shape of the oval section, and the elastic connecting line is two groups, relative to buffering
The short axle of ring is symmetricly set on the two sides of its short axle.
Further, the pedestal includes pedestal and the cylinder that is fixed on pedestal, the cylinder coaxial arrangement in
The one end in the outside of buffering ring, the elastic connecting line is fixedly connected with buffering ring, and the other end is pierced by from the barrel of the cylinder
It is fixedly connected afterwards by a connection piece with cylinder.
Further, the cylinder includes lower shell and the upper shell with lower shell lid conjunction, the side of the upper shell
Hinged with lower shell, the other side is detachably connected with the lower shell, after one group of elastic connecting line connection buffering ring again with upper cylinder
Body is fixed, and is fixed again with lower shell after another group of elastic connecting line connection buffering ring.
Further, the connector includes screw, nut, and the screw is connect with the cylinder screw, the screw
Inner hollow forms the channel passed through for the elastic connecting line, is provided with a bulge loop, the nut on the outside of the screw
It is connect with the screw thread and elastic connecting line is pierced by portion compresses in the bulge loop.
Further, several hangnails are provided in the bulge loop and nut contact surface.
Further, the guide groove for accommodating the elastic connecting line is also provided on the inner wall in the channel.
Further, the buffering ring including the first outer ring, the second outer ring and is fixed at the first outer ring and the second outer ring
Between connection net, the connection net is in a ring and coaxial with first outer ring and the second outer ring, first outer ring and
The opposite one side of two outer rings is respectively formed the contact surface contacted with two limiting section.
Further, first outer ring and the second outer ring are all made of rubber material, and the connection net is memorial alloy braiding
Net.
Further, the shock tunnel further includes the sliding rail for being used to support the hole body, by with the sliding rail
Road cooperation, the hole body can slide axially along.
Beneficial effects of the present invention:
Buffering dress of the present invention from displacement buffer-type shock tunnel, including hole body and for being buffered to the hole body
It sets, one end of buffering ring is contacted with a limiting section, and when by impact force, segment displacement occurs for hole body, and limiting section quickly pushes
Buffering ring displacement, under the fixation of pedestal, buffering ring buffers hole body when moving axially for hole body, is formed to wind-tunnel
The buffer function of hole body axial direction impulsive force, while the flexible restoring force of buffering ring of the present invention, in natural resiliency restoring force
It under effect, forms reversed active force and acts on wind-tunnel tube body, be allowed to move in the opposite direction, buffer impulse type shock tunnel
The axial impact loading of generation, and then the overall axial for reducing shock tunnel is displaced and is restored.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is the structural schematic diagram of shock tunnel of the present invention；
Fig. 2 is the structural schematic diagram of buffing pad of the present invention；
Fig. 3 is the structural schematic diagram of hole body of the present invention；
Fig. 4 is schematic cross-section of the Fig. 3 along A-A；
Fig. 5 is the effect schematic diagram of connector of the present invention；
Fig. 6 is the structural schematic diagram of buffering ring of the present invention.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
Fig. 1 is the structural schematic diagram of shock tunnel of the present invention, and Fig. 2 is the structural schematic diagram of buffing pad of the present invention, and Fig. 3 is this
The structural schematic diagram of hole body is invented, Fig. 4 is schematic cross-section of the Fig. 3 along A-A, and Fig. 5 is the effect schematic diagram of connector of the present invention,
Fig. 6 is the structural schematic diagram of buffering ring of the present invention.From displacement buffer-type shock tunnel, including hole body 1 and for the hole
The buffer unit that body 1 is buffered, the buffer unit include at least one buffing pad 2, the buffing pad 2 include pedestal 201,
Buffering ring 202 and elastic connecting line 203, the buffering ring 202 are fixed at pedestal 201 by the elastic connecting line 203
On, 202 coaxial sleeve of buffering ring is set to the outside of hole body 1, is provided on the hole body 1 for respectively to 202 liang of buffering ring
Two limiting sections 3 limited are held, the buffering ring 202 buffers hole body 1 when moving axially for hole body 1.This hair
Bright displacement buffer-type shock tunnel certainly, the buffer unit including hole body 1 and for being buffered to the hole body 1, buffering ring
202 right end is contacted with right limit portion, and when by impact force, segment displacement occurs for hole body 1, and limiting section 3 quickly pushes buffering
Ring 202 is to left dislocation, and under the fixation of pedestal 201, buffering ring 202 delays hole body 1 when moving axially for hole body 1
Punching forms the buffer function to the axial impulsive force of wind tunnel body 1, while the flexible restoring force of buffering ring of the present invention 202, In
It under the action of natural resiliency restoring force, forms reversed active force and acts on wind-tunnel tube body, be allowed to move in the opposite direction, delay
The axial impact loading that chong channel stamp shock tunnel generates, and then the overall axial for reducing shock tunnel is displaced and is restored.
In the present invention, memory alloy material or rubber material is can be used in buffering ring 202 and elastic connecting line 203, has certain bullet
Property restoring force can be buffered.Suitable thickness and intensity are selected as needed.
In the present embodiment, shape is provided on the hole body 1 in elliptical oval section 4, the ellipse section 4 is located at two limits
Between portion 3, the buffering ring 202 is the ellipse to match with the shape of the oval section 4, and the elastic connecting line 203 is
Two groups, the short axle relative to buffering ring 202 is symmetricly set on the two sides of its short axle.Due to the reaction of experimental gas in hole body 1
Journey is complicated, and high pressure gas is constantly with hole body friction, also irregular to the effect of impact rear film, therefore high pressure gas is anti-in impact
It should be easy to generate hole body 1 certain twisting resistance afterwards, the present invention is matched by the oval section 4 of buffering ring 202 and hole body 1 of ellipse
It closes, when in hole, body 1 twists, the oval rotation of section 4 drives buffering ring 202 to deform, so that the generation of buffering ring 202 be made to prevent its change
The preact power of shape, and it can be made to restore original angle under the action of buffering ring 202, reduce wind-tunnel operation and
Maintenance cost.
In the present embodiment, the pedestal 201 includes pedestal 2011 and the cylinder being fixed on pedestal 2011, described
Cylinder is coaxially disposed in the outside of buffering ring 202, and one end of the elastic connecting line 203 is fixedly connected with buffering ring 202, another
End is fixedly connected with cylinder after being pierced by from the barrel of the cylinder by a connection piece 5.Cylinder is for fixing and protecting buffering ring
202, by the way that buffering ring 202 to be fixed on to the center of cylinder, fixation is more firm, and energy consumption effect is more preferable.
In the present embodiment, the cylinder includes lower shell 2013 and covers the upper shell 2012 closed with the lower shell 2013,
The side of the upper shell 2012 and lower shell 2013 are hinged, and the other side is detachably connected with the lower shell 2013, one group of bullet
Property connecting line 203 connect fixed with upper shell 2012 again after buffering ring 202, another group of elastic connecting line 203 connects buffering ring 202
It is fixed with lower shell 2013 again afterwards.By setting upper shell 2012 and lower shell 2013, the disassembly of whole device can be convenient, just
Just later maintenance reduces error.
In the present embodiment, the connector 5 includes screw 501, nut 502, and the screw 501 connects with the cylinder screw
It connects, the inner hollow of the screw 501 forms the channel 503 passed through for the elastic connecting line 203, the screw 501
Outside is provided with a bulge loop 504, and the nut 501 is threadedly coupled with the screw 501 and elastic connecting line 203 is pierced by part
It is pressed in the bulge loop 504, has the function that fixed elasticity link frightens you 203.The bulge loop 504 and 502 contact surface of nut
On be provided with several hangnails, oneself is rotated after hangnail can prevent nut 502 from loosening, and increases the fixing of connection.
In the present embodiment, the guiding for accommodating the elastic connecting line 203 is also provided on the inner wall in the channel 503
Slot 505, the width of guide groove 505 are slightly less than the diameter of elastic connecting line 203, so as to which elastic connecting line 203 to be tightly pressed into
In guide groove 505, the axial direction in channel 503 plays the effect of a friction force to elastic connecting line 203, reduces elasticity
The loosening of connecting line 203.
In the present embodiment, the buffering ring 202 includes the first outer ring 2021, the second outer ring 2022 and is fixed at first
Connection net 2023 between outer ring 2021 and the second outer ring 2022, the connection net 2023 in a ring and with first outer ring
2021 and second outer ring 2022 it is coaxial, first outer ring 2021 and the opposite one side of the second outer ring 2022 be respectively formed with it is described
The contact surface of two limiting sections contact.
In the present embodiment, first outer ring 2021 and the second outer ring 2022 are all made of rubber material, the connection net
2023 be memorial alloy mesh grid, there is certain high damping characteristic, and energy consumption effect is good, and both ends pass through setting 2021 He of the first outer ring
Second outer ring 2022 allows its active force along the axial direction of buffering ring 202, reduces the direct destruction to 202 ontology of buffering ring.
In the present embodiment, the shock tunnel further includes the sliding rail 6 for being used to support the hole body 1, by with it is described
Sliding rail 6 cooperates, and the hole body 1 can slide axially along, and sliding rail 6 primarily serves the effect of support, certainly in fact
Only it is also that can play a supporting role by buffer unit, support can be allowed more stable by the way that sliding rail 6 is arranged.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (9)
1. the buffer unit including hole body and for being buffered to the hole body is special from displacement buffer-type shock tunnel
Sign is, the buffer unit includes at least one buffing pad, and the buffing pad includes pedestal, buffering ring and elastic connecting line,
The buffering ring is fixed on pedestal by the elastic connecting line, and the buffering ring coaxial sleeve is set to the outside of hole body,
Two limiting sections for being limited respectively to buffering ring both ends are provided on the hole body, the buffering ring is for hole body in axis
To buffering when movement to hole body, shape is provided on the hole body in elliptical oval section, the ellipse section is located at two and limits
Between the portion of position, the buffering ring is the ellipse to match with the shape of the oval section, and the elastic connecting line is two groups, phase
The two sides of its short axle are symmetricly set on for the short axle of buffering ring.
2. it is according to claim 1 from displacement buffer-type shock tunnel, which is characterized in that the pedestal include pedestal and
The cylinder being fixed on pedestal, cylinder coaxial arrangement in the outside of buffering ring, one end of the elastic connecting line with
Buffering ring is fixedly connected, and the other end is fixedly connected with cylinder after being pierced by from the barrel of the cylinder by a connection piece.
3. it is according to claim 2 from displacement buffer-type shock tunnel, which is characterized in that the cylinder include lower shell and
The upper shell closed with the lower shell lid, the side of the upper shell and lower shell are hinged, and the other side and the lower shell are removable
Connection is unloaded, is fixed again with upper shell after one group of elastic connecting line connection buffering ring, after another group of elastic connecting line connection buffering ring
It is fixed again with lower shell.
4. it is according to claim 3 from displacement buffer-type shock tunnel, which is characterized in that the connector include screw,
Nut, the screw are connect with the cylinder screw, and the inner hollow of the screw is formed to be passed through for the elastic connecting line
Channel, be provided with a bulge loop on the outside of the screw, the nut connect with the screw thread and wears elastic connecting line
Portion compresses are in the bulge loop out.
5. according to claim 4 from displacement buffer-type shock tunnel, which is characterized in that the bulge loop and nut contact table
Several hangnails are provided on face.
6. according to claim 5 from displacement buffer-type shock tunnel, which is characterized in that also opened on the inner wall in the channel
Equipped with the guide groove for accommodating the elastic connecting line.
7. according to claim 1 from displacement buffer-type shock tunnel, which is characterized in that the buffering ring includes outside first
Ring, the second outer ring and the connection net being fixed between the first outer ring and the second outer ring, the connection net in a ring and with institute
It states the first outer ring and the second outer ring is coaxial, first outer ring and the opposite one side of the second outer ring are respectively formed and two limit
The contact surface of portion's contact.
8. according to claim 7 from displacement buffer-type shock tunnel, which is characterized in that outside first outer ring and second
Ring is all made of rubber material, and the connection net is memorial alloy mesh grid.
9. according to claim 1 from displacement buffer-type shock tunnel, which is characterized in that the shock tunnel further includes using
In the sliding rail for supporting the hole body, by cooperating with the sliding rail, the hole body can slide axially along.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776562.8A CN110487505B (en) | 2019-08-22 | 2019-08-22 | Self-displacement buffer type shock tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776562.8A CN110487505B (en) | 2019-08-22 | 2019-08-22 | Self-displacement buffer type shock tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110487505A true CN110487505A (en) | 2019-11-22 |
| CN110487505B CN110487505B (en) | 2020-11-06 |
Family
ID=68552737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910776562.8A Active CN110487505B (en) | 2019-08-22 | 2019-08-22 | Self-displacement buffer type shock tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110487505B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08219940A (en) * | 1995-02-17 | 1996-08-30 | Mitsubishi Heavy Ind Ltd | Piston launcher for chock tunnel |
| CN103115745A (en) * | 2013-01-17 | 2013-05-22 | 中国科学院力学研究所 | Hanging pendulum type impact buffer device of hypersonic velocity shock wave wind tunnel |
| CN205462659U (en) * | 2016-03-31 | 2016-08-17 | 方六云 | Stirring crushing machine shock absorption device |
| CN106840581A (en) * | 2016-12-14 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of fluid pressure drive device for shock tunnel axial movement |
| CN108036918A (en) * | 2018-01-02 | 2018-05-15 | 中国航天空气动力技术研究院 | The FREE-PISTON SHOCK TUNNEL of one kind of multiple mode operations |
| CN108195549A (en) * | 2018-01-02 | 2018-06-22 | 中国航天空气动力技术研究院 | A kind of support system suitable for the operation of wind-tunnel various modes |
| CN208778554U (en) * | 2018-08-22 | 2019-04-23 | 天津兆镒达五金制品有限公司 | A kind of spring leaf that cushion performance is good |
-
2019
- 2019-08-22 CN CN201910776562.8A patent/CN110487505B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08219940A (en) * | 1995-02-17 | 1996-08-30 | Mitsubishi Heavy Ind Ltd | Piston launcher for chock tunnel |
| CN103115745A (en) * | 2013-01-17 | 2013-05-22 | 中国科学院力学研究所 | Hanging pendulum type impact buffer device of hypersonic velocity shock wave wind tunnel |
| CN205462659U (en) * | 2016-03-31 | 2016-08-17 | 方六云 | Stirring crushing machine shock absorption device |
| CN106840581A (en) * | 2016-12-14 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of fluid pressure drive device for shock tunnel axial movement |
| CN108036918A (en) * | 2018-01-02 | 2018-05-15 | 中国航天空气动力技术研究院 | The FREE-PISTON SHOCK TUNNEL of one kind of multiple mode operations |
| CN108195549A (en) * | 2018-01-02 | 2018-06-22 | 中国航天空气动力技术研究院 | A kind of support system suitable for the operation of wind-tunnel various modes |
| CN208778554U (en) * | 2018-08-22 | 2019-04-23 | 天津兆镒达五金制品有限公司 | A kind of spring leaf that cushion performance is good |
Non-Patent Citations (3)
| Title |
|---|
| P. VADASSERY: "Design and testing of an external drag balance for a hypersonic shock tunnel", 《MEASUREMENT》 * |
| 吕金洲: "基于惯性补偿的脉冲风洞测力天平瞬态研究", 《振动与冲击》 * |
| 罗义成: "2米激波风洞浮动运行技术研究", 《第十三届全国激波与激波管会议论文集》 * |
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| CN110487505B (en) | 2020-11-06 |
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Effective date of registration: 20240423 Address after: 621000 Rongxin Incubation Park A318, No. 133 Mianxing East Road, Mianyang High tech Zone, Mianyang City, Sichuan Province (Entrepreneurship Service Center) Patentee after: Sichuan Zhongshang Shengchuang Technology Co.,Ltd. Country or region after: China Address before: 325006 north head of the third floor, No.29 qiananxin Road, Shanghui village, Louqiao street, Ouhai District, Wenzhou City, Zhejiang Province Patentee before: Wenzhou Chunhua Qiushi Technology Co.,Ltd. Country or region before: China |