CN110207963A - Air spring resilient support erects structure freedom-free boundary simulator - Google Patents
Air spring resilient support erects structure freedom-free boundary simulator Download PDFInfo
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- CN110207963A CN110207963A CN201910456833.1A CN201910456833A CN110207963A CN 110207963 A CN110207963 A CN 110207963A CN 201910456833 A CN201910456833 A CN 201910456833A CN 110207963 A CN110207963 A CN 110207963A
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- air spring
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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)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
It is flexibly supported the present invention relates to a kind of air spring and erects structure freedom-free boundary simulator; testpieces is straightened support; switching tooling is arranged in testpieces lower surface; the lower surface of the switching tooling is evenly distributed with several air springs; setting displacement protection block between two air springs adjacent to each other; each air spring connects corresponding air spring additional air chamber away from one end of testpieces; each air spring additional air chamber is fixed on test stationary plane; each displacement protection block also is secured to test stationary plane, and corresponding air spring pressure gauge is arranged on each air spring.It carries out freedom-free boundary simulation test by the support of optimization air spring and layout, to the testpieces of setting, and provides multiple protective, it is ensured that test validity and safety.
Description
Technical field
It is flexibly supported the present invention relates to a kind of air spring and erects structure freedom-free boundary simulator, belong to structure
Dynamic test apparatus field.
Background technique
Structure Dynamic Characteristics test is a conventional and important link during product development, and the general purpose of test is
Examine the dynamic performance parameters of product time of day flowering structure；For mother spacecraft, missile armament, appearance can be provided for it
State controls the important design parameter of systems stabilisation, while also can provide important parameter and correcting for theoretical forecasting models；Also it can be used
It is detected in structural health, discovery structure design defect etc..And Product Status be determine one of Structure Dynamic Characteristics parameter it is decisive
Factor.Therefore how it is safe and efficient low cost test site guarantee test Product Status be Structure Dynamic Characteristics test implement before
An important link in phase planning and test implementation process.
Structure Dynamic Characteristics test is the boundary condition simulation system that guarantee test product boundary condition generally requires a set of complexity, is led to
It is often to be carried out in dedicated test site, such as carrier rocket and the vibration tower of guided missile full-scale test etc..For section, son
System-level testpieces generally utilizes place crane horizontal suspension or horizontally-supported using building portal frame in testing ground
Realize freedom-free boundary condition of simulation test product.
But for there are the test products of following series of problems, the prior art is had the following problems:
(1) test site there is a problem of hanging high deficiency；
(2) there is crane crane capacity deficiency in test site；
(3) requirement that test products general assembly needs the boundary of firm stable safety to support；
(4) test products erect general assembly, can not achieve lifting and the turn over function of test products after general assembly.
Summary of the invention
(1) technical problems to be solved
For above-mentioned insufficient and demand in the prior art, the present invention proposes that a kind of air spring resilient support erects structure
Freedom-free boundary simulator, by the support of optimization air spring and layout, free to the testpieces progress of setting-freely
Boundary condition simulation test, and multiple protective is provided, it is ensured that test validity and safety.
(2) technical solution
A kind of air spring resilient support setting structure freedom-free boundary simulator, testpieces are straightened support, try
Part lower surface setting switching tooling is tested, the lower surface of the switching tooling is evenly distributed with several air springs, two air adjacent to each other
Setting displacement protection block, each air spring connect corresponding air spring additional air chamber away from one end of testpieces between spring,
Each air spring additional air chamber is fixed on test stationary plane, and each protection block that is displaced also is secured to test stationary plane, each air spring
The upper corresponding air spring pressure gauge of setting.
Air spring is set to the lower end surface of the testpieces of upright state and along its circle distribution.
The setting of testpieces upper section surrounds the band of testpieces outer diameter described in simultaneously hard-pressed bale, and several are evenly distributed on the band along institute
State the resilient support band that testpieces radially extends, the resilient support band includes rope and elastic element, the rope be wirerope or
Nylon rope, the elastic element are spring or elastic string.
Each air spring additional air chamber is connected to air delivering pipeline, each appendix by respective air delivering pipeline branch
Corresponding air spring gas transmission valve is arranged in road branch road, gas source switch valve is arranged on air delivering pipeline, air delivering pipeline is connected to gas
Source.
According to the support requirement of the testpieces of setting and quality distribution, the setting quantity and layout of air spring are determined
Scheme.
Air spring quantity is 3, and support system is statically determinate system, determines air bullet according to the quality distribution of testpieces
The target working pressure value of spring.
Air spring quantity is 4 or more, and support system is statically indeterminate system, is converted to statically indeterminate problem: first
System force and torque equilibrium equation are established, then establishes optimization aim using air spring target working pressure average value as target value
Function, then the theoretical Mass Distribution state based on testpieces, obtain the target pressure value of each air spring.
According to the requirement of support frequency, the design of air spring additional air chamber is carried out.
According to the rigidity and stability requirement of system, the rigidity Design of spring is carried out.
A kind of air spring resilient support erects the application method of structure freedom-free boundary simulator, including following
Step:
S1, switching tooling and air spring are fixedly mounted in place, the testpieces of upright state is connect simultaneously with switching tooling
With displacement protection block carrying；
S2, installation kit band, spring and wirerope, to prevent testpieces from toppling over；
S3, the gas source switch valve for opening gas source, the opening state of synchronously control air spring gas transmission valve monitor each sky
Gas-spring pressure table；
S4, when switching tooling and displacement protection block there is height gap, Collaborative Control does not occur the air spring of gap location
Gas transmission valve is opened, it is ensured that the stable support that a safety and steady is formed with displacement protection block vertically of the testpieces of upright state
Highly；
S5, under this holding state, set the target working pressure value of each air spring, it closed using gas source
Ring control；
S6, carry out test.
(3) beneficial effect
A kind of air spring resilient support of the invention erects structure freedom-free boundary simulator, uses air
The mode of spring bottom support carries out freedom-free boundary simulation of testpieces upright state.For the setting shape of guarantee test part
State uses bottom supporting way using switching tooling for connecting air spring and testpieces, the static strength of switching tooling is wanted
Reduction is asked, to guarantee that boundary condition simulation system influences the lesser additional mass of test result；
Reference test produces the single order elasticity frequency reference of part free boundary, including lateral, torsion and longitudinal elasticity single order
Frequency, according to the relevant criterion requirement of Structure Dynamic Characteristics test free boundary simulation rigid body frequency and elastic frequency proportions, tentatively
Determine the requirement of air spring support system rigidity Design and distribution scheme；
The mass property and air spring rigidity and distribution mode of reference test part, for the lateral stability for meeting pilot system
Property, devise cross-protection device and limit safety device；
The type selecting for carrying out air spring refines, it can be achieved that every set air bullet the air supply system of more set air springs
The synchronization and independent control ability of spring meet since testpieces bias causes to load inconsistent use need between air spring
It asks；
It is equilibrium equation and target by conversion statically indeterminate problem for the state that four and the above air spring support
Function optimization problem, and then realize the control of the hard objectives pressure value of system, and then realize the free boundary simulation of system.
Detailed description of the invention
A kind of air spring resilient support Fig. 1 of the invention erects the support shape of structure freedom-free boundary simulator
State perspective view.
A kind of air spring resilient support Fig. 2 of the invention erects the whole control of structure freedom-free boundary simulator
Schematic diagram processed.
In figure, 1- testpieces；2- switching tooling；3- is displaced protection block；4- air spring；5- air spring additional air chamber；
6- air spring pressure gauge；7- wirerope；8- spring；9- band；10- gas source；11- air delivering pipeline；12- gas source switch valve；
13- air spring gas transmission valve.
Specific embodiment
Referring to Fig. 1, a kind of air spring resilient support of the invention erects structure freedom-free boundary simulator, examination
It tests part 1 and is straightened support, switching tooling 2 is arranged in 1 lower surface of testpieces, if the lower surface of the switching tooling 2 is evenly distributed with dry air
Spring 4,4 setting displacement protection blocks 3, each air spring 4 connect away from one end of testpieces 1 between two air springs adjacent to each other
Corresponding air spring additional air chamber 5 is connect, each air spring additional air chamber 5 is fixed on test stationary plane, each to be displaced protection block 3
It is fixed on test stationary plane, corresponding air spring pressure gauge 6 is set on each air spring 4.
Air spring 4 is set to the lower end surface of the testpieces 1 of upright state and along its circumference uniform distribution.
Referring to fig. 2, the setting of 1 upper section of testpieces around and hard-pressed bale described in 1 outer diameter of testpieces band 9, on the band 9
Several resilient support bands radially extended along the testpieces 1 of cloth, the resilient support band includes wirerope 7 and spring 8, is gone back
The combination of nylon rope and elastic string can be used.
Each air spring additional air chamber 5 is connected to air delivering pipeline 11 by respective air delivering pipeline branch, each defeated
Corresponding air spring gas transmission valve 13 is arranged in air pipe branch road, and gas source switch valve 12, appendix is arranged on air delivering pipeline 11
Road 11 is connected to gas source 10.
According to the support requirement and quality distribution of the testpieces 1 of setting, the setting quantity of air spring 4 is determined.
4 quantity of air spring is 3, and support system is statically determinate system, determines air according to the quality distribution of testpieces 1
The target working pressure value of spring 4.
4 quantity of air spring is 4 or more, and support system is statically indeterminate system, is converted to statically indeterminate problem: first
System force and torque equilibrium equation are established, then establishes optimization mesh by target value of 4 target working pressure average value of air spring
Scalar functions, then the theoretical Mass Distribution state based on testpieces 1, obtain the target pressure value of each air spring 4.
According to the requirement of support frequency, the design of air spring additional air chamber 5 is carried out.
According to the rigidity and stability requirement of system, the rigidity Design of spring 8 is carried out.
A kind of air spring resilient support erects the application method of structure freedom-free boundary simulator, including following
Step:
S1, switching tooling 2 and air spring 4 are fixedly mounted in place, the testpieces 1 and switching tooling 2 of upright state connect
It connects and displacement protection block 3 is used to carry；
S2, installation kit band 9, spring 8 and wirerope 7, to prevent testpieces 1 from toppling over；
S3, the gas source switch valve 12 for opening gas source 10, the opening state of synchronously control air spring gas transmission valve 13, monitoring
Each air spring pressure gauge 6；
S4, when switching tooling 2 and displacement protection block 3 there is height gap, Collaborative Control does not occur the air bullet of gap location
Spring gas transmission valve 13 is opened, it is ensured that the testpieces 1 of upright state is stable vertically to form a safety and steady with displacement protection block 3
Bearing height；
S5, under this holding state, set the target working pressure value of each air spring 4, using gas source 10 to its into
Row closed-loop control；
S6, carry out test.
Claims (10)
1. a kind of air spring resilient support erects structure freedom-free boundary simulator, which is characterized in that testpieces is erected
Vertical support, testpieces lower surface are arranged switching tooling, and the lower surface of the switching tooling is evenly distributed with several air springs, two phases each other
Setting displacement protection block between adjacent air spring, each air spring are attached away from one end of testpieces corresponding air spring of connection
Aerating room, each air spring additional air chamber are fixed on test stationary plane, and each protection block that is displaced also is secured to test stationary plane, each sky
Corresponding air spring pressure gauge is set in gas spring.
2. a kind of air spring resilient support as described in claim 1 erects structure freedom-free boundary simulator, special
Sign is that air spring is set to the lower end surface of the testpieces of upright state and along its circle distribution.
3. a kind of air spring resilient support as described in claim 1 erects structure freedom-free boundary simulator, special
Sign is that the setting of testpieces upper section surrounds the band of testpieces outer diameter described in simultaneously hard-pressed bale, and several are evenly distributed on the band along institute
State the resilient support band that testpieces radially extends, the resilient support band includes rope and elastic element, the rope be wirerope or
Nylon rope, the elastic element are spring or elastic string.
4. a kind of air spring resilient support as claimed in claim 3 erects structure freedom-free boundary simulator, special
Sign is that each air spring additional air chamber is connected to air delivering pipeline, each appendix by respective air delivering pipeline branch
Corresponding air spring gas transmission valve is arranged in road branch road, gas source switch valve is arranged on air delivering pipeline, air delivering pipeline is connected to gas
Source.
5. a kind of air spring resilient support as claimed in claim 4 erects structure freedom-free boundary simulator, special
Sign is, according to the support requirement of the testpieces of setting and quality distribution, determines the setting quantity and layout of air spring
Scheme.
6. a kind of air spring resilient support as claimed in claim 5 erects structure freedom-free boundary simulator, special
Sign is that air spring quantity is 3, and support system is statically determinate system, determines air bullet according to the quality distribution of testpieces
The target working pressure value of spring.
7. a kind of air spring resilient support as claimed in claim 5 erects structure freedom-free boundary simulator, special
Sign is that air spring quantity is 4 or more, and support system is statically indeterminate system, converts to statically indeterminate problem: building first
Then erection system power and torque equilibrium equation establish optimization aim letter by target value of air spring target working pressure average value
Number, then the theoretical Mass Distribution state based on testpieces, obtain the target pressure value of each air spring.
8. a kind of air spring resilient support as claimed in claims 6 or 7 erects structure freedom-free boundary simulator,
It is characterized in that, carrying out the design of air spring additional air chamber according to the requirement of support frequency.
9. a kind of air spring resilient support as claimed in claim 8 erects structure freedom-free boundary simulator, special
Sign is, according to the rigidity and stability requirement of system, carries out the rigidity Design of spring.
10. the use that a kind of air spring resilient support as claimed in claim 9 erects structure freedom-free boundary simulator
Method, which comprises the following steps:
S1, switching tooling and air spring are fixedly mounted in place, the testpieces of upright state connect with switching tooling and uses position
Move protection block carrying；
S2, installation kit band, spring and wirerope, to prevent testpieces from toppling over；
S3, the gas source switch valve for opening gas source, the opening state of synchronously control air spring gas transmission valve monitor each air bullet
Spring pressure gauge；
S4, when switching tooling and displacement protection block there is height gap, Collaborative Control does not occur the air spring gas transmission of gap location
Valve is opened, it is ensured that the stable support for forming a safety and steady with displacement protection block is high vertically for the testpieces of upright state
Degree；
S5, under this holding state, set the target working pressure value of each air spring, closed loop control carried out to it using gas source
System；
S6, carry out test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456833.1A CN110207963B (en) | 2019-05-29 | 2019-05-29 | Free-free boundary simulation device for air spring elastic support vertical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456833.1A CN110207963B (en) | 2019-05-29 | 2019-05-29 | Free-free boundary simulation device for air spring elastic support vertical structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110207963A true CN110207963A (en) | 2019-09-06 |
| CN110207963B CN110207963B (en) | 2021-01-05 |
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|---|---|---|---|
| CN201910456833.1A Active CN110207963B (en) | 2019-05-29 | 2019-05-29 | Free-free boundary simulation device for air spring elastic support vertical structure |
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Cited By (6)
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| CN111579237A (en) * | 2020-06-23 | 2020-08-25 | 北京强度环境研究所 | Free boundary simulation system for modal test |
| CN111665742A (en) * | 2020-06-22 | 2020-09-15 | 北京强度环境研究所 | Airbag supporting free boundary simulation control system and control method thereof |
| CN111947901A (en) * | 2020-09-23 | 2020-11-17 | 北京强度环境研究所 | Novel spring steel cable free boundary simulation system |
| CN112340056A (en) * | 2020-09-22 | 2021-02-09 | 北京强度环境研究所 | Free boundary simulation support module |
| CN112577690A (en) * | 2020-08-20 | 2021-03-30 | 北京强度环境研究所 | Flexible supporting unit for missile hanging boundary |
| CN112936202A (en) * | 2021-03-26 | 2021-06-11 | 北京中科宇航技术有限公司 | Solid carrier rocket final assembly frame vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111665742A (en) * | 2020-06-22 | 2020-09-15 | 北京强度环境研究所 | Airbag supporting free boundary simulation control system and control method thereof |
| CN111665742B (en) * | 2020-06-22 | 2021-08-03 | 北京强度环境研究所 | Airbag supporting free boundary simulation control system and control method thereof |
| CN111579237A (en) * | 2020-06-23 | 2020-08-25 | 北京强度环境研究所 | Free boundary simulation system for modal test |
| CN112577690A (en) * | 2020-08-20 | 2021-03-30 | 北京强度环境研究所 | Flexible supporting unit for missile hanging boundary |
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| CN112936202A (en) * | 2021-03-26 | 2021-06-11 | 北京中科宇航技术有限公司 | Solid carrier rocket final assembly frame vehicle |
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