CN106768921A - A kind of tail undercarriage rocking arm erection joint fatigue experimental device - Google Patents
A kind of tail undercarriage rocking arm erection joint fatigue experimental device Download PDFInfo
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- CN106768921A CN106768921A CN201611068489.1A CN201611068489A CN106768921A CN 106768921 A CN106768921 A CN 106768921A CN 201611068489 A CN201611068489 A CN 201611068489A CN 106768921 A CN106768921 A CN 106768921A
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- China
- Prior art keywords
- rocking arm
- erection joint
- pressurized strut
- tail undercarriage
- arm erection
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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
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of tail undercarriage rocking arm erection joint fatigue experimental device.The tail undercarriage rocking arm erection joint fatigue experimental device includes:Main installation stand, tail undercarriage rocking arm erection joint is arranged on the main installation stand;First pressurized strut, the cylinder of the first pressurized strut is arranged on the main installation stand, and the piston rod of the first pressurized strut is connected with tail undercarriage rocking arm erection joint;Second start cartridge module, the second start cartridge module includes the second pressurized strut, and the piston rod of the second pressurized strut is connected with the tail undercarriage rocking arm erection joint;3rd start cartridge module, the 3rd start cartridge module includes the 3rd pressurized strut, and the piston rod of the 3rd pressurized strut is connected with the tail undercarriage rocking arm erection joint.The fatigue experimental device energy accurate simulation tail undercarriage rocking arm erection joint of the application carries out fatigue test to tail undercarriage rocking arm erection joint in the boundary condition of the aspect such as installation and load, and experiment proves that and test data analyzer, obtain good effect.
Description
Technical field
The present invention relates to helicopter tail undercarriage rocking arm erection joint fatigue test technology field, more particularly to a kind of tail
Undercarriage rocking arm erection joint fatigue experimental device.
Background technology
Tail undercarriage is the important component of helicopter fuselage structure, it is ensured that the stabilization of helicopter ground taxi
Property, helicopter landing Impact energy is absorbed, reduce bump stroke.Helicopter tail undercarriage is main by damper leg, connecting rocker arm
And the part such as wheel composition, wherein rocking arm is connected by erection joint with body.Helicopter during landing, tail undercarriage
Stand under load change greatly, moment impact greatly, the especially stability of tail undercarriage damper leg erection joint structural strength decides directly
Rise the length of tail undercarriage service life.The object of invention belongs to certain emphasis model helicopter structure part fatigue test technology
Field, is one of the important core technology of the type helicopter structure part fatigue test.In order to determine tail undercarriage rocking arm joint
Fatigue behaviour, judge the service life and maintenance cycle of helicopter tail undercarriage, it is necessary to be faced on ground so as to effective and rapid
The tail frame rocking arm erection joint that falls carries out fatigue test, grasps its tired dangerous position and failure mode, and then evaluates tail and rises and falls
The service life of frame rocking arm erection joint.
Prior art does not have corresponding tail undercarriage rocking arm erection joint fatigue experimental device, it is impossible to carry out tired examination to it
Test.
Thus, it is desirable to have a kind of technical scheme come overcome or at least mitigate prior art at least one drawbacks described above.
The content of the invention
Overcome it is an object of the invention to provide a kind of tail undercarriage rocking arm erection joint fatigue experimental device or at least
Mitigate prior art at least one of drawbacks described above.
To achieve the above object, the present invention provides tail undercarriage rocking arm erection joint fatigue experimental device, for being risen for tail
The frame rocking arm erection joint that falls applies three loaded loads of mutually orthogonal direction;The fatigue experimental device includes:Main installation
Stand, the tail undercarriage rocking arm erection joint is arranged on the main installation stand;First pressurized strut, first pressurized strut
Cylinder be arranged on the main installation stand, the piston rod of first pressurized strut and the tail undercarriage rocking arm erection joint
Connection;Second start cartridge module, the second start cartridge module include the second pressurized strut, the piston rod of second pressurized strut with
The tail undercarriage rocking arm erection joint connection;3rd start cartridge module, the 3rd start cartridge module includes the 3rd pressurized strut,
The piston rod of the 3rd pressurized strut is connected with the tail undercarriage rocking arm erection joint;Wherein, first pressurized strut is used for
The loaded load of first direction is provided for the tail undercarriage rocking arm erection joint;Second pressurized strut is used to be risen for the tail
The frame rocking arm erection joint that falls provides the loaded load of second direction;3rd pressurized strut is used to pacify for the tail undercarriage rocking arm
Joint provides the loaded load of third direction;The loaded load of the first direction, the loaded load of second direction and
The loaded load in three directions is mutually perpendicular to.
Preferably, the main installation stand includes installing columns assemblies, crossbeam, testing stand base plate and base mount,
The base mount is arranged on a face of the testing stand base plate, and the base mount rises and falls for fixing the tail
Frame rocking arm erection joint;It is described that the face for being provided with the base mount that columns assemblies are arranged on the testing stand base plate is installed
On, the crossbeam is arranged in the installation columns assemblies.
Preferably, it is described it is main installation stand further include first direction loading joint, second direction loading joint and
Third direction loads joint;First direction loading joint is arranged in the tail undercarriage rocking arm erection joint, and described the
One pressurized strut loads joint and is connected with the tail undercarriage rocking arm erection joint by the first direction;The second direction adds
Carry joint to be arranged in the tail undercarriage rocking arm erection joint, second pressurized strut loads joint by the second direction
It is connected with the tail undercarriage rocking arm erection joint;The third direction loading joint is arranged on the tail undercarriage rocking arm and installs
On joint, the 3rd pressurized strut loads joint and is connected with the tail undercarriage rocking arm erection joint by the third direction.
Preferably, the cylinder of first pressurized strut is arranged on the crossbeam, and first pressurized strut can be along institute
State the direction of both ends motion of crossbeam.
Preferably, the second start cartridge module further includes the second pressurized strut mounting bracket, second pressurized strut
Cylinder is arranged on the second pressurized strut mounting bracket and being capable of relatively described second pressurized strut mounting bracket motion.
Preferably, the second pressurized strut mounting bracket includes second base and be arranged in the second base second
Columns assemblies, are provided with bar hole in second columns assemblies, second pressurized strut passes through with second columns assemblies
The bar hole connection.
Preferably, second columns assemblies include head tree and reinforcement column, are provided with the head tree described
Bar hole, the reinforcement column connects the head tree and the second base.
Preferably, the 3rd start cartridge module further includes the 3rd pressurized strut mounting bracket, the 3rd pressurized strut
Cylinder is arranged on the 3rd pressurized strut mounting bracket and being capable of relatively described 3rd pressurized strut mounting bracket motion.
Preferably, the 3rd pressurized strut mounting bracket includes the 3rd base and the be arranged on the 3rd base the 3rd
Columns assemblies, are provided with bar hole in the 3rd columns assemblies, the 3rd pressurized strut passes through with the 3rd columns assemblies
The bar hole connection.
Preferably, the 3rd columns assemblies include head tree and reinforcement column, are provided with the head tree described
Bar hole, the reinforcement column connects the head tree and the 3rd base.
The tail undercarriage rocking arm erection joint fatigue experimental device energy accurate simulation tail undercarriage rocking arm of the application is installed and connect
Head carries out fatigue test to tail undercarriage rocking arm erection joint in the boundary condition of the aspect such as installation and load, and through testing
Card and test data analyzer, obtain good effect.
Brief description of the drawings
Fig. 1 is the structural representation of tail undercarriage rocking arm erection joint fatigue experimental device according to a first embodiment of the present invention
Figure.
Fig. 2 is the close-up schematic view of the tail undercarriage rocking arm erection joint fatigue experimental device shown in Fig. 1.
Reference:
Specific embodiment
To make the purpose, technical scheme and advantage of present invention implementation clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from start to finish or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than whole embodiments.Embodiment below with reference to Description of Drawings is exemplary, it is intended to used
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Under
Face is described in detail with reference to accompanying drawing to embodiments of the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " are based on accompanying drawing institute
The orientation or position relationship for showing, are for only for ease of the description present invention and simplify description, rather than the dress for indicating or implying meaning
Put or element with specific orientation, with specific azimuth configuration and operation, therefore it is not intended that must be protected to the present invention
The limitation of scope.
Fig. 1 is the structural representation of tail undercarriage rocking arm erection joint fatigue experimental device according to a first embodiment of the present invention
Figure.Fig. 2 is the close-up schematic view of the tail undercarriage rocking arm erection joint fatigue experimental device shown in Fig. 1.
Tail undercarriage rocking arm erection joint fatigue experimental device as shown in Figure 1, connects for being installed for tail undercarriage rocking arm
Head applies three loaded loads of mutually orthogonal direction;The tail undercarriage rocking arm erection joint fatigue experimental device includes main peace
Dress stand 1, the first pressurized strut 3, the second start cartridge module 4 and the 3rd start cartridge module 5, tail undercarriage rocking arm erection joint 2
It is arranged on main installation stand 1;The cylinder of the first pressurized strut 3 be arranged on it is main installation stand on, the piston rod of the first pressurized strut 3 with
Tail undercarriage rocking arm erection joint 2 is connected;Second start cartridge module 4 includes the second pressurized strut 41, the piston of the second pressurized strut 41
Bar is connected with tail undercarriage rocking arm erection joint 2;3rd start cartridge module 5 includes the 3rd pressurized strut 51, the 3rd pressurized strut 51
Piston rod is connected with tail undercarriage rocking arm erection joint 2;Wherein, the first pressurized strut 3 is used to be tail undercarriage rocking arm erection joint 2
The loaded load of first direction is provided;Second pressurized strut 41 is used to provide second direction for tail undercarriage rocking arm erection joint 2
Loaded load;3rd pressurized strut 51 is used to be provided for tail undercarriage rocking arm erection joint 2 loaded load of third direction;First party
To the loaded load of loaded load, the loaded load of second direction and third direction be mutually perpendicular to.
The tail undercarriage rocking arm erection joint fatigue experimental device energy accurate simulation tail undercarriage rocking arm of the application is installed and connect
Head carries out fatigue test to tail undercarriage rocking arm erection joint in the boundary condition of the aspect such as installation and load, and through testing
Card and test data analyzer, obtain good effect.
Referring to Fig. 1 and Fig. 2, in the present embodiment, main installation stand includes installing columns assemblies 11, crossbeam 12, testing stand
Base plate 13 and base mount 14, base mount 14 are arranged on a face of testing stand base plate 13, base mount 14
For fixing tail undercarriage rocking arm erection joint 2;Columns assemblies 11 are installed base peace is installed installed in testing stand base plate 13
On the face of piece installing 14, crossbeam 12 is arranged on to be installed in columns assemblies 11.
Referring to Fig. 1, in the present embodiment, main installation stand further includes that first direction loads joint 15, second direction
Loading joint 16 and third direction loading joint 17;First direction loading joint 15 is arranged on tail undercarriage rocking arm erection joint
On 2, the first pressurized strut 3 loads joint 15 and is connected with tail undercarriage rocking arm erection joint 2 by first direction;Second direction is loaded
Joint 16 is arranged in tail undercarriage rocking arm erection joint 2, and the second pressurized strut 41 loads joint and risen and fallen with tail by second direction
Frame rocking arm erection joint 2 is connected;Third direction loading joint 17 is arranged in tail undercarriage rocking arm erection joint 2, the 3rd start
Cylinder 51 loads joint 17 and is connected with tail undercarriage rocking arm erection joint 2 by third direction.Increase first direction loading joint 15,
Second direction loads joint 16 and third direction loading joint 17, loads joint 15, second direction by first direction and loads
Joint 16 and third direction loading joint 17 are connected with tail undercarriage rocking arm erection joint 2, it is therefore prevented that be loaded directly into being risen in tail
The situation of the structure for needing to change tail undercarriage rocking arm erection joint 2 in frame rocking arm erection joint 2 that falls occurs.
Referring to Fig. 1, in the present embodiment, the cylinder of the first pressurized strut 3 is arranged on crossbeam 12, and the first pressurized strut can
Moved along the direction of both ends of crossbeam.The first pressurized strut is moved along the direction of both ends of crossbeam can finely tune the first pressurized strut
Position.
Referring to Fig. 1, in the present embodiment, the second start cartridge module 4 further includes the second pressurized strut mounting bracket 42, second
The cylinder of pressurized strut is arranged on the second pressurized strut mounting bracket 42 and can be moved with respect to the second pressurized strut mounting bracket.Make the second work
Dynamic cylinder can move the position that can finely tune the second pressurized strut along the direction of both ends of crossbeam.
Referring to Fig. 1, in the present embodiment, the second pressurized strut mounting bracket 42 includes second base 421 and is arranged on second
The second columns assemblies 422 on base 421, are provided with bar hole in the second columns assemblies 422, the second pressurized strut 41 and second is vertical
Column assembly 422 is connected by bar hole.Using this structure, the second pressurized strut 41 can be adjusted in the length range of bar hole
Section.Specifically, the second columns assemblies include head tree and strengthen column, and bar hole is provided with head tree, and reinforcement column connects
Connect head tree and second base.Increasing reinforcing prop can increase the intensity of whole second pressurized strut mounting bracket 42, prevent from being subject to
The effect of reaction force and damage.
Referring to Fig. 1, in the present embodiment, the 3rd start cartridge module further includes the 3rd pressurized strut mounting bracket 52, the 3rd
The cylinder of pressurized strut 51 is arranged on the 3rd pressurized strut mounting bracket 52 and can be moved with respect to the 3rd pressurized strut mounting bracket.Make the 3rd
Pressurized strut can move the position that can finely tune the 3rd pressurized strut along the direction of both ends of crossbeam.
Referring to Fig. 1, in the present embodiment, the 3rd pressurized strut mounting bracket includes the 3rd base 521 and is arranged on the 3rd bottom
The 3rd columns assemblies 522 on seat 521, are provided with bar hole, the 3rd pressurized strut 51 and the 3rd column in the 3rd columns assemblies 522
Component 522 is connected by bar hole.Using this structure, the second pressurized strut 41 can be adjusted in the length range of bar hole.
Specifically, the 3rd columns assemblies include head tree and strengthen column, and bar hole is provided with head tree, and reinforcement column connection is led
Column and the 3rd base.Increasing reinforcing prop can increase the intensity of whole second pressurized strut mounting bracket 42, prevent anti-work
Effect firmly and damage.
It is last it is to be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe has been described in detail to the present invention with reference to the foregoing embodiments, it will be understood by those within the art that:It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change;And these modifications or replacement, do not make the essence of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution
God and scope.
Claims (10)
1. a kind of tail undercarriage rocking arm erection joint fatigue experimental device, for being that tail undercarriage rocking arm erection joint applies three
The loaded load of mutually orthogonal direction;Characterized in that, the fatigue experimental device includes:
Main installation stand (1), the tail undercarriage rocking arm erection joint (2) is arranged on main installation stand (1);
First pressurized strut (3), the cylinder of first pressurized strut (3) is arranged on the main installation stand, first start
The piston rod of cylinder (3) is connected with the tail undercarriage rocking arm erection joint (2);
Second start cartridge module (4), the second start cartridge module (4) includes the second pressurized strut (41), second pressurized strut
(41) piston rod is connected with the tail undercarriage rocking arm erection joint (2);
3rd start cartridge module (5), the 3rd start cartridge module (5) includes the 3rd pressurized strut (51), the 3rd pressurized strut
(51) piston rod is connected with the tail undercarriage rocking arm erection joint (2);Wherein,
First pressurized strut (3) is for the loaded load for the tail undercarriage rocking arm erection joint (2) offer first direction;
Second pressurized strut (41) is for the loaded load for the tail undercarriage rocking arm erection joint (2) offer second direction;Institute
The 3rd pressurized strut (51) is stated for providing the loaded load of third direction for the tail undercarriage rocking arm erection joint (2);It is described
The loaded load of the loaded load of first direction, the loaded load of second direction and third direction is mutually perpendicular to.
2. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 1, it is characterised in that the main installation
Stand includes installing columns assemblies (11), crossbeam (12), testing stand base plate (13) and base mount (14), the base peace
On a face of the testing stand base plate (13), the base mount (14) is risen for fixing the tail for piece installing (14)
Fall frame rocking arm erection joint (2);Installation columns assemblies (11) is described installed in being provided with for the testing stand base plate (13)
On the face of base mount (14), the crossbeam (12) is on installation columns assemblies (11).
3. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 2, it is characterised in that the main installation
Stand further includes that first direction loads joint (15), second direction and loads joint (16) and third direction loading joint
(17);
The first direction loads joint (15) and is arranged on the tail undercarriage rocking arm erection joint (2), first start
Cylinder (3) loads joint (15) and is connected with the tail undercarriage rocking arm erection joint (2) by the first direction;
The second direction loads joint (16) and is arranged on the tail undercarriage rocking arm erection joint (2), second start
Cylinder (41) loads joint and is connected with the tail undercarriage rocking arm erection joint (2) by the second direction;
The third direction loads joint (17) and is arranged on the tail undercarriage rocking arm erection joint (2), the 3rd start
Cylinder (51) loads joint (17) and is connected with the tail undercarriage rocking arm erection joint (2) by the third direction.
4. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 3, it is characterised in that described first makees
The cylinder of dynamic cylinder (3) is arranged on the crossbeam (12), and first pressurized strut can be transported along the direction of both ends of the crossbeam
It is dynamic.
5. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 4, it is characterised in that described second makees
Dynamic cartridge module (4) further includes the second pressurized strut mounting bracket (42), and the cylinder of second pressurized strut is arranged on described second
On pressurized strut mounting bracket (42) and being capable of the second pressurized strut mounting bracket motion relatively.
6. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 5, it is characterised in that described second makees
Dynamic cylinder mounting bracket (42) includes second base (421) and the second columns assemblies being arranged in the second base (421)
(422) bar hole, second pressurized strut (41) and the second column group, are provided with second columns assemblies (422)
Part (422) is connected by the bar hole.
7. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 6, it is characterised in that described second stands
Column assembly includes head tree and strengthens column, and the bar hole is provided with the head tree, and the reinforcement column connects institute
State head tree and the second base.
8. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 5, it is characterised in that the described 3rd makees
Dynamic cartridge module further includes the 3rd pressurized strut mounting bracket (52), and the cylinder of the 3rd pressurized strut (51) is arranged on the described 3rd
On pressurized strut mounting bracket (52) and being capable of the 3rd pressurized strut mounting bracket motion relatively.
9. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 8, it is characterised in that the described 3rd makees
Dynamic cylinder mounting bracket includes the 3rd base (521) and the 3rd columns assemblies (522) being arranged on the 3rd base (521),
Bar hole, the 3rd pressurized strut (51) and the 3rd columns assemblies (522) are provided with 3rd columns assemblies (522)
Connected by the bar hole.
10. tail undercarriage rocking arm erection joint fatigue experimental device as claimed in claim 9, it is characterised in that the described 3rd
Columns assemblies include head tree and strengthen column, and the bar hole is provided with the head tree, and the reinforcement column is connected
The head tree and the 3rd base.
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CN201611068489.1A CN106768921A (en) | 2016-11-29 | 2016-11-29 | A kind of tail undercarriage rocking arm erection joint fatigue experimental device |
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CN201611068489.1A CN106768921A (en) | 2016-11-29 | 2016-11-29 | A kind of tail undercarriage rocking arm erection joint fatigue experimental device |
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CN201611068489.1A Pending CN106768921A (en) | 2016-11-29 | 2016-11-29 | A kind of tail undercarriage rocking arm erection joint fatigue experimental device |
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Cited By (12)
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CN107655772A (en) * | 2017-09-06 | 2018-02-02 | 哈尔滨工程大学 | A kind of comprehensive vehicle device for testing fatigue of connecting piece |
CN108051172A (en) * | 2017-12-27 | 2018-05-18 | 湖南响箭重工科技有限公司 | Swing arm type landing leg fatigue test device and test method |
CN108088672A (en) * | 2017-11-29 | 2018-05-29 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of aircraft nose landing gear outer barrel suspension joint slow test fixture |
CN109506915A (en) * | 2018-11-12 | 2019-03-22 | 中国直升机设计研究所 | A kind of tail-rotor steering assembly fatigue experimental device |
CN109506913A (en) * | 2018-11-12 | 2019-03-22 | 中国直升机设计研究所 | A kind of tailskid test of static strength load charger |
CN109506909A (en) * | 2018-11-09 | 2019-03-22 | 中国直升机设计研究所 | Endpiece testpieces fatigue test tail undercarriage load charger |
CN109533387A (en) * | 2018-11-13 | 2019-03-29 | 中国直升机设计研究所 | A kind of Helicopter Main Hub support arm restraint lock fatigue experimental device |
CN109720601A (en) * | 2019-01-19 | 2019-05-07 | 北京工业大学 | A kind of aircraft full size structure part multiaxle fatigue experimental device |
CN111099036A (en) * | 2019-11-22 | 2020-05-05 | 南京航空航天大学 | Fatigue test device and method for landing gear ejection main force transfer structure |
CN112461526A (en) * | 2020-11-20 | 2021-03-09 | 中国直升机设计研究所 | Fatigue test loading device for main starting rocker arm joint of unmanned helicopter |
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Cited By (18)
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CN107655772B (en) * | 2017-09-06 | 2019-11-12 | 哈尔滨工程大学 | A kind of comprehensive vehicle device for testing fatigue of connecting piece |
CN107655772A (en) * | 2017-09-06 | 2018-02-02 | 哈尔滨工程大学 | A kind of comprehensive vehicle device for testing fatigue of connecting piece |
CN108088672A (en) * | 2017-11-29 | 2018-05-29 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of aircraft nose landing gear outer barrel suspension joint slow test fixture |
CN108051172A (en) * | 2017-12-27 | 2018-05-18 | 湖南响箭重工科技有限公司 | Swing arm type landing leg fatigue test device and test method |
CN109506909B (en) * | 2018-11-09 | 2020-08-14 | 中国直升机设计研究所 | Tail landing gear load loading device for fatigue test of tail section test piece |
CN109506909A (en) * | 2018-11-09 | 2019-03-22 | 中国直升机设计研究所 | Endpiece testpieces fatigue test tail undercarriage load charger |
CN109506913A (en) * | 2018-11-12 | 2019-03-22 | 中国直升机设计研究所 | A kind of tailskid test of static strength load charger |
CN109506915A (en) * | 2018-11-12 | 2019-03-22 | 中国直升机设计研究所 | A kind of tail-rotor steering assembly fatigue experimental device |
CN109533387A (en) * | 2018-11-13 | 2019-03-29 | 中国直升机设计研究所 | A kind of Helicopter Main Hub support arm restraint lock fatigue experimental device |
CN109720601A (en) * | 2019-01-19 | 2019-05-07 | 北京工业大学 | A kind of aircraft full size structure part multiaxle fatigue experimental device |
CN111099036A (en) * | 2019-11-22 | 2020-05-05 | 南京航空航天大学 | Fatigue test device and method for landing gear ejection main force transfer structure |
CN111099036B (en) * | 2019-11-22 | 2021-09-17 | 南京航空航天大学 | Fatigue test device and method for landing gear ejection main force transfer structure |
CN112461526A (en) * | 2020-11-20 | 2021-03-09 | 中国直升机设计研究所 | Fatigue test loading device for main starting rocker arm joint of unmanned helicopter |
CN112461526B (en) * | 2020-11-20 | 2022-06-21 | 中国直升机设计研究所 | Fatigue test loading device for main starting rocker arm joint of unmanned helicopter |
CN114112352A (en) * | 2021-11-19 | 2022-03-01 | 中国直升机设计研究所 | Fatigue test method for tail-rising buffer strut joint |
CN114112350A (en) * | 2021-11-19 | 2022-03-01 | 中国直升机设计研究所 | Test loading device for passenger seat embedded part |
CN114112352B (en) * | 2021-11-19 | 2023-06-27 | 中国直升机设计研究所 | Fatigue test method for tail-lift buffer strut joint |
CN114112350B (en) * | 2021-11-19 | 2023-11-24 | 中国直升机设计研究所 | Test loading device for passenger seat insert |
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