CN109186915A - A kind of structural features big load impact test loading device and method - Google Patents
A kind of structural features big load impact test loading device and method Download PDFInfo
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- CN109186915A CN109186915A CN201810957566.1A CN201810957566A CN109186915A CN 109186915 A CN109186915 A CN 109186915A CN 201810957566 A CN201810957566 A CN 201810957566A CN 109186915 A CN109186915 A CN 109186915A
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- structural features
- loading device
- trolley
- mass block
- big load
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to shock loading load test field, in particular to a kind of structural features big load impact test loading device and method.The structural features big load impact test loading device includes trolley (9), balance weight assembly, bracket (8) and testpieces (6).Structural features big load impact test loading device of the invention, the mass block (3) of weight is matched to apply different size of shock loading with trolley (9) by design, utilize the motion profile of control trolley (9), realize the load to structural features shock loading, the loading device structure is simple, loading method implementation is easy to operate, and experimentation cost is low;The device has preferable versatility, need to only change the position of rack (8), so that it may realize the variation of test load load angle.
Description
Technical field
The present invention relates to shock loading load test field, in particular to a kind of structural features big load impact test load
Device and method.
Background technique
In order to understand the performance of testpieces under loads, it usually needs carry out load test to it.Slow test is for seeing
Situations such as examining with intensity, rigidity and stress of the development test part under dead weight, deformation distribution, but static loading mode
It can only realize low period reverse cyclic loadings, cannot achieve the quick load of Millisecond loading velocity.Impact test is development test part
A kind of test for live load drag, for structural features, since component quality itself limits, normal impact loading method can not
The continuous load of heavy shock loads is carried out within the Millisecond time to component.
Summary of the invention
The object of the present invention is to provide a kind of structural features big load impact test loading device and methods, existing to solve
There is at least one problem existing for technology.
The technical scheme is that
A kind of structural features big load impact test loading device, comprising:
Trolley, the trolley are connect with control system;
Balance weight assembly, the balance weight assembly include pedestal, connecting rod and mass block, and the pedestal is fixedly mounted on described
On trolley, the connecting rod is fixedly mounted on the base, and the mass block is arranged by opening up through-hole in the connecting rod
On;
Bracket, the bracket are fixedly mounted on the trolley;
Testpieces, one end of the testpieces and jockey are hinged, and the jockey is pacified by the way that force snesor is fixed
Mounted in the center of the mass block side, the other end of the testpieces is fixedly mounted on the bracket by testing accessory
On.
Optionally, by opening up strip hole in the pedestal, the pedestal and the trolley are bolted.
Optionally, the connecting rod includes two, is symmetrically installed on the base by mounting base.
Optionally, lubricant is coated in the connecting rod.
Optionally, rubber pad is provided on the outside of the through-hole of the mass block.
Optionally, the test accessory is claw.
Optionally, the bracket is bolted on the trolley.
Optionally, the mass block is configured with multiple, the quality difference of each mass block.
A kind of structural features big load impact test loading method, based on structural features big load as described above impact examination
Test loading device characterized by comprising
Step 1: according to the requirement of test load, selecting matched mass block, complete the structural features big load impact
The assembling of experiment loading unit;
Step 2: the power loading curve of the trolley is controlled by control system, to control the movement tendency of mass block
And it is applied to the load of testpieces, the time history curve for applying load is recorded by force snesor;
Step 3: changing the position of rack, repeat step 2 to 3, until completing the test of all load load angles.
Optionally, the assembling process of the impact test loading device of structural features big load described in step 1 includes:
Step 1.1: mass block being mounted in connecting rod, connecting rod is mounted on the base by mounting base, will be assembled
Configuration component be bolted on the car;
Step 1.2: being mounted on mass block, and protect after one end of testpieces is sequentially connected jockey and force snesor
Confirmatory test part, jockey, force snesor and mass block center of gravity point-blank;
Step 1.3: according to the installation requirement design experiment accessory of testpieces, the other end of testpieces and test accessory being consolidated
Fixed, test accessory is rack-mount by bolt, and bracket is bolted on trolley.
Invention effect:
Structural features big load impact test loading device of the invention, applies different size of impact by mass block
Load realizes the load to structural features shock loading using the motion profile of control trolley, and the loading device structure is simple,
Loading method implementation is easy to operate, and experimentation cost is low, has preferable versatility, need to only change the position of rack, so that it may realize
The variation of test load load angle.
Detailed description of the invention
Fig. 1 is the schematic diagram of structural features big load impact test loading device of the invention;
1 is pedestal, and 2 be connecting rod, and 3 be mass block, and 4 be force snesor, and 5 be jockey, and 6 be testpieces, and 7 be test
Accessory, 8 be bracket, and 9 be trolley.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention
The limitation of range.
1 pair of structural features big load impact test loading device of the invention is done further specifically with reference to the accompanying drawing
It is bright.
The present invention provides a kind of structural features big load impact test loading devices, may include: trolley 9, weight set
Part, bracket 8 and testpieces 6.
Specifically, trolley 9 is connect with control system, which can control the motion profile of trolley 9;Balance weight assembly
Including pedestal 1, connecting rod 2 and mass block 3, pedestal 1 is fixedly mounted on trolley 9, and through-hole is offered on mass block 3, connection
Bar 2 is fixedly mounted on pedestal 1 after the through-hole of mass block 3;Bracket 8 is fixedly mounted on trolley 9;One end of testpieces 6
Hinged with jockey 5, jockey 5 is fixedly mounted on the center position of 3 side of mass block by force snesor 4, guarantees
Testpieces 6, jockey 5, force snesor 4 and mass block 3 center of gravity point-blank, the other end of testpieces 6 and test
One end of accessory 7 connects, and the other end of test accessory 7 is fixedly mounted on bracket 8.It is understood that in the present embodiment,
Bolt hole is opened up on pedestal 1, bolt hole is strip hole, and pedestal 1 is fixed by bolt and trolley 9.
Advantageously, in the present embodiment, preferably connecting rod 2 is arranged two, pedestal 1 is symmetrically mounted on by mounting base
On, lubricant is coated in connecting rod 2.
Advantageously, in the present embodiment, rubber pad preferably is arranged on the outside of the through-hole of mass block 3, prevent and connecting rod 2
Mounting base hit and be damaged.Each structural features big load impact test loading device can be configured with multiple mass blocks 3,
The quality of each mass block 3 is different, before being tested, suitable mass block 3 is selected to carry out installation test.
Advantageously, in structural features big load impact test loading device of the invention, test the structure of accessory 7 according to
The installation requirement of testpieces 6 designs, and when testpieces 6 is cylindric, test accessory 7 is claw.
Advantageously, bracket 8 is bolted on trolley 9 in the present embodiment, by changing the position of bracket 8, come
Change the angle of test load load.
Based on above-mentioned structural features big load impact test loading device, the present invention also provides a kind of structural features are big
Load impacting tests loading method, comprising:
Step 1: according to the requirement of test load, selecting matched mass block 3, complete the structural features big load impact
The assembling of experiment loading unit;
Assembling process specifically includes:
Step 1.1: mass block 3 being mounted in connecting rod 2, connecting rod 2 is mounted on pedestal 1 by mounting base, by group
The configuration component installed is bolted on trolley 9;
Step 1.2: it is mounted on mass block 3 after one end of testpieces 6 is sequentially connected jockey 5 and force snesor 4,
And the center of gravity of guarantee test part 6, jockey 5, force snesor 4 and mass block 3 is point-blank;
Step 1.3: according to the installation requirement design experiment accessory 7 of testpieces 6, the other end of testpieces 6 and test is auxiliary
Tool 7 is fixed, and test accessory 7 is mounted on bracket 8 by bolt, and bracket 8 is bolted on trolley 9.
Step 2: the power loading curve of the trolley 9 is controlled by control system, so that the movement for controlling mass block 3 becomes
Gesture and the load for being applied to testpieces 6, the time history curve for applying load is recorded by force snesor 4, and shock loading is
Closed-loop control is carried out to load is applied by scragging control system.
Step 3: changing the position of rack 8, repeat step 2 to 3, until completing the test of all load load angles.
In conclusion structural features big load impact test loading device of the invention, matches weight with trolley 9 by designing
The mass block 3 of amount applies different size of shock loading, using the motion profile of control quality 3, realizes and rushes to structural features
The load of load is hit, the loading device structure is simple, and loading method implementation is easy to operate, and experimentation cost is low;The device have compared with
Good versatility need to only change the position of rack 8, so that it may realize the variation of test load load angle.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of structural features big load impact test loading device characterized by comprising
Trolley (9), the trolley (9) connect with control system;
Balance weight assembly, the balance weight assembly include pedestal (1), connecting rod (2) and mass block (3), the fixed peace of the pedestal (1)
On the trolley (9), the connecting rod (2) is fixedly mounted on the pedestal (1), and the mass block (3) is by opening up
Through-hole is arranged on the connecting rod (2);
Bracket (8), the bracket (8) are fixedly mounted on the trolley (9);
Testpieces (6), hingedly, the jockey (5) is sensed by power for one end and jockey (5) of the testpieces (6)
Device (4) is fixedly mounted on the center of the mass block (3) side, and the other end of the testpieces (6) passes through test accessory
(7) it is fixedly mounted on the bracket (8).
2. structural features big load impact test loading device according to claim 1, which is characterized in that by described
Pedestal (1) opens up strip hole, and the pedestal (1) and the trolley (9) are bolted.
3. structural features big load impact test loading device according to claim 1, which is characterized in that the connecting rod
(2) include two, be symmetrically mounted on the pedestal (1) by mounting base.
4. structural features big load impact test loading device according to claim 3, which is characterized in that the connecting rod
(2) lubricant is coated on.
5. structural features big load impact test loading device according to claim 1, which is characterized in that the mass block
(3) rubber pad is provided on the outside of through-hole.
6. structural features big load impact test loading device according to claim 1, which is characterized in that the test is auxiliary
Having (7) is claw.
7. structural features big load impact test loading device according to claim 1, which is characterized in that the bracket
(8) it is bolted on the trolley (9).
8. structural features big load impact test loading device according to claim 1, which is characterized in that the mass block
(3) configured with multiple, the quality difference of each mass block (3).
9. a kind of structural features big load impact test loading method, based on the structural features big load described in claim 1 to 6
Impact test loading device characterized by comprising
Step 1: according to the requirement of test load, selecting matched mass block (3), complete the structural features big load impact examination
Test the assembling of loading device;
Step 2: the power loading curve of the trolley (9) is controlled by control system, so that the movement for controlling mass block (3) becomes
Gesture and the load for being applied to testpieces (6) record the time history curve for applying load by force snesor (4);
Step 3: changing the position of rack (8), repeat step 2 to 3, until completing the test of all load load angles.
10. structural features big load impact test loading method according to claim 7, which is characterized in that institute in step 1
The assembling process for stating structural features big load impact test loading device includes:
Step 1.1: mass block (3) is mounted on connecting rod (2), connecting rod (2) is mounted on pedestal (1) by mounting base,
Assembled configuration component is bolted on trolley (9);
Step 1.2: being mounted on mass block after one end of testpieces (6) is sequentially connected jockey (5) and force snesor (4)
(3) on, and the center of gravity of guarantee test part (6), jockey (5), force snesor (4) and mass block (3) is point-blank;
Step 1.3: according to the installation requirement design experiment accessory (7) of testpieces (6), by the other end of testpieces (6) and test
Accessory (7) is fixed, and test accessory (7) is mounted on bracket (8) by bolt, and bracket (8) is bolted on trolley (9)
On.
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CN201810957566.1A CN109186915A (en) | 2018-08-22 | 2018-08-22 | A kind of structural features big load impact test loading device and method |
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CN201810957566.1A CN109186915A (en) | 2018-08-22 | 2018-08-22 | A kind of structural features big load impact test loading device and method |
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CN110095357A (en) * | 2019-04-12 | 2019-08-06 | 南京航空航天大学 | The loading device and method of dynamic loading experiment are stretched for self-sealing falling-off connector |
CN113335561A (en) * | 2021-06-04 | 2021-09-03 | 中国飞机强度研究所 | Undercarriage test supporting clamp |
CN114705469A (en) * | 2022-06-06 | 2022-07-05 | 中国飞机强度研究所 | Airplane damage test simulation system and method for airplane strength test |
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CN114705469A (en) * | 2022-06-06 | 2022-07-05 | 中国飞机强度研究所 | Airplane damage test simulation system and method for airplane strength test |
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