CN106052992A - Low cross-linking coupled launch vehicle instrument cabin angular vibration test stand - Google Patents
Low cross-linking coupled launch vehicle instrument cabin angular vibration test stand Download PDFInfo
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- CN106052992A CN106052992A CN201610395835.0A CN201610395835A CN106052992A CN 106052992 A CN106052992 A CN 106052992A CN 201610395835 A CN201610395835 A CN 201610395835A CN 106052992 A CN106052992 A CN 106052992A
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- Prior art keywords
- rotating shaft
- pedestal
- hydraulic
- vibration exciter
- test platform
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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
- G01M7/02—Vibration-testing by means of a shake table
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a low cross-linking coupled launch vehicle instrument cabin angular vibration test stand. The launch vehicle instrument cabin angular vibration test stand comprises an installation large plate, a rotating shaft installation pedestal, a vibration exciter installation pedestal, a hydraulic vibration exciter, a rotational connecting column, a hydraulic spherical hinge, rotating shaft fixing pedestals, a rotating shaft, rotating bearings and a test platform, wherein the installation large plate is fixedly connected with a ground rail on a foundation, the rotating shaft installation pedestal and the vibration exciter installation pedestal are fixed on the installation large plate, the hydraulic vibration exciter is fixedly installed on the vibration exciter installation pedestal, the upper end of the hydraulic vibration exciter is connected with the hydraulic spherical hinge through the rotational connecting column, the hydraulic spherical hinge is connected with the test platform and can rotate freely, the bottom ends of the rotating shaft fixing pedestals are fixed on the rotating shaft installation pedestal, the upper and lower ends of each rotating shaft fixing pedestal fix the rotating shaft in a manner that two semicircles are clamped with each other, the two rotating bearings sleeve the rotating shaft, and the test platform falls on the entire rotating bearings and achieves the rotation around the rotating shaft along with the rotating bearings under the push of the hydraulic vibration exciter.
Description
Technical field
The invention belongs to kinetics professional field, be specifically related to the carrier rocket instrument room angular vibration test of low cross-linking coupling
Platform.
Background technology
Carrier rocket uses strapdown inertial measurement unit to carry out gesture stability, and strapdown inertial measurement unit is arranged on instrument room, Control System Design
Time need to obtain the dynamics under instrument room state, it to be modeled and COMPENSATION NETWORK DESIGN.Therefore, control system
Need to obtain used group angle transmission characteristic parameter under instrument room state, carry out attitude stability control design case accordingly.In order to obtain angle
Transmission characteristic, it is necessary to carry out the attribute testing research under instrument room state, obtains instrument room and the characteristic ginseng of used group mounting bracket
Number.
When carrying out carrier rocket instrument room angular vibration test in early days, use low frequency six degree of freedom platform to load, pass through
The mode that controller Phase synchronization controls, it is achieved table top angular oscillation encourages, is measured input and response simultaneously, is come by data identification
Obtain angle transmission characteristic.The control ability impact of this readily controlled instrument of method load mode, causes shaking of non-test direction
Dynamic input, thus affect test input purity and characterization result certainty of measurement.If there is bias, then retroaction in instrument room structure
Impact on testing stand can be bigger, and the crosslinking coupling causing table top is relatively big, thus affects the input purity of test table top further.
Therefore, for carrier rocket instrument room, use existing six degree of freedom platform to carry out the method input precision of angular oscillation loading not
Height, reduces the accuracy of result of the test, loads purity to improve angular vibration test, it is necessary to design new pilot system.
Summary of the invention
For the problems referred to above, the invention provides the carrier rocket instrument room angular vibration test platform of a kind of low cross-linking coupling,
The pure angular oscillation excitation realizing single-degree-of-freedom loads, and solves crosslinking when current carrier rocket instrument room angular vibration test encourages relatively
Big problem, improves test loading accuracy, it is ensured that the accuracy of measurement result.
The carrier rocket instrument room angular vibration test platform of a kind of low cross-linking coupling, including installing big plate 1, pedestal is installed in rotating shaft
2, vibrator installs pedestal 3, hydraulic vibration exciter 4, connecting column 5, hydraulic pressure ball pivot 6, rotating shaft fixed pedestal 7, rotating shaft 8, rolling bearing
9, test platform 10；
Wherein, installing that big plate 1 and the track on ground are fixing to be connected, rotating shaft is installed pedestal 2 and is installed pedestal 3 admittedly with vibrator
Being scheduled on the big plate 1 of installation, hydraulic vibration exciter 4 is fixedly mounted on vibrator and installs on pedestal 3, and hydraulic vibration exciter 4 upper end is by turning
Connecing post 5 to be connected with hydraulic pressure ball pivot 6, hydraulic pressure ball pivot 6 is connected with test platform 10, can be freely rotatable；Rotating shaft fixed pedestal 7 bottom
Being fixed on rotating shaft and install on pedestal 2, upper and lower two ends use semicircle to fix the mode of card by rotating shaft 8, and two rolling bearings 9 penetrate
Rotating shaft 8, with oil film between rotating shaft 8 and rolling bearing 9, can allow rolling bearing 98 freely rotatable, on rolling bearing 9 around the shaft
Holding be connected fixing with test platform 10, test platform 10 falls within whole rolling bearing 9, in the promotion by hydraulic vibration exciter 4
After, follow rolling bearing 9 together, it is achieved around the rotation of axle.
Further, installing big plate 1, pedestal 2 is installed in rotating shaft, and pedestal 3 installed by vibrator, and rotating shaft fixed pedestal 7 all uses
A3 steel.
Further, limited location device in rotating shaft 8.
Further, rolling bearing 9 only one of which freedom of motion, utilize the rigidity of its oil film, other side can be retrained
To motion.
Accompanying drawing explanation
Fig. 1 is the side view after the carrier rocket instrument room angular vibration test platform that low cross-linking couples removes test platform；
As it is shown in figure 1, wherein 1 install big plate, 2 rotating shafts install pedestals, 3 vibrators install pedestals, 4 hydraulic vibration exciters, 5 turns
Connect post, 6 hydraulic pressure ball pivots；
Fig. 2 is the front view after the carrier rocket instrument room angular vibration test platform that low cross-linking couples removes test platform；
As in figure 2 it is shown, wherein 7 rotating shaft fixed pedestal, 8 rotating shafts, 9 rolling bearings；
Fig. 3 is the side view of the carrier rocket instrument room angular vibration test platform of low cross-linking coupling；
As it is shown on figure 3, wherein 10 test platform；
Fig. 4 is the front view of the carrier rocket instrument room angular vibration test platform of low cross-linking coupling.
Detailed description of the invention
With detailed description of the invention, technical scheme is described in further details below in conjunction with the accompanying drawings.Obviously, institute
The embodiment described is only a part of embodiment of the present invention rather than whole embodiments.Based on embodiments of the invention,
The every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly falls into this
Bright claimed scope.
Low cross-linking coupling carrier rocket instrument room angular vibration test platform structural representation as shown in Figure 1, Figure 2, Figure 3 and Figure 4,
Including installing big plate, pedestal is installed in rotating shaft, and pedestal installed by vibrator, and hydraulic vibration exciter, connecting column, hydraulic pressure ball pivot, rotating shaft is fixed
Pedestal, rotating shaft, rolling bearing, test platform；Above-mentioned 10 part-structures the most from the bottom up, constitute angle vibration table main body.Its
In, big plate is installed, pedestal is installed in rotating shaft, vibrator is installed pedestal and is A3 steel, uses welding and the mode of processing, it is ensured that enough
Coupling stiffness.Installing big plate to be connected with the track on ground, use foundation bolt to fix, rotating shaft is installed pedestal and is pacified with vibrator
Dress pedestal is fixed on big plate, is respectively used to support rotating shaft and vibrator.Hydraulic vibration exciter is the excitational equipment of angle vibration table, uses
In driving test platform motion, it is fixedly mounted on vibrator and installs on pedestal.Connecting column and hydraulic pressure are passed through in hydraulic vibration exciter upper end
Ball pivot is connected.Hydraulic pressure ball pivot is connected with test platform, can be freely rotatable, produces and interfere when preventing hydraulic vibration exciter from moving.
Rotating shaft fixed pedestal is A3 steel, and its bottom is fixed on rotating shaft and installs on pedestal, and upper and lower two ends use semicircle will turn the mode of card
Axle is fixed, limited location device in rotating shaft, prevents rotating shaft play vertically.Two hydraulic rotation bearings penetrate rotating shaft, rotating shaft and axle
With oil film between holding, bearing can be allowed freely rotatable around axle, and retrain the motion in other direction.Hydraulic rotation bearing upper end with
Test platform is connected, and test platform falls within whole rotary shaft, after by the promotion of hydraulic vibration exciter, follows hydraulic rotation moving axis
Hold together, it is achieved around the rotation of axle.
The present invention uses hydraulic vibration exciter to provide excitation, utilizes hydraulic pressure ball pivot to carry out mobile decoupling, uses hydraulic rotation moving axis
Hold other degree of freedom constraint carrying out angular oscillation, constitute the carrier rocket instrument room angle vibration table of low cross-linking coupling.Owing to making
Using hydraulic rotation bearing, the oil film rigidity in bearing is very big, can effectively suppress the motion of crosslinking coupling, and oily
Film frictional force is the least, the most not affects rotational motion.Further, since test platform has carried out design optimization, platform weight
Very light and natural frequency high, it is effectively increased test capability.Test application result shows, the crosslinking coupling of this angular vibration test platform
Close the lowest, reached test index demand.
Described above to the disclosed embodiments, makes those skilled in the art be capable of or uses.These are implemented
The multiple amendment of example is apparent from for the patented technology personnel of this area, and generic principles defined herein is permissible
Without departing from the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to institute herein
These embodiments shown, and it is to fit to the widest range consistent with principles disclosed herein and features of novelty.
Claims (4)
1. the carrier rocket instrument room angular vibration test platform of a low cross-linking coupling, it is characterised in that include installing big plate (1),
Pedestal (2) is installed in rotating shaft, and pedestal (3) installed by vibrator, and hydraulic vibration exciter (4), connecting column (5), hydraulic pressure ball pivot (6), rotating shaft is solid
Determine pedestal (7), rotating shaft (8), rolling bearing (9), test platform (10)；
Wherein, installing that big plate (1) and the track on ground are fixing to be connected, pedestal (2) and vibrator installation pedestal (3) are installed in rotating shaft
Being fixed in the big plate of installation (1), hydraulic vibration exciter (4) is fixedly mounted on vibrator and installs on pedestal (3), hydraulic vibration exciter (4)
Upper end is connected with hydraulic pressure ball pivot (6) by connecting column (5), and hydraulic pressure ball pivot (6) is connected with test platform (10), can freely turn
Dynamic；Rotating shaft fixed pedestal (7) bottom is fixed on rotating shaft and installs on pedestal (2), and upper and lower two ends use semicircle will turn the mode of card
Axle (8) is fixed, and two rolling bearings (9) penetrate rotating shaft (8), with oil film, Ke Yirang between rotating shaft (8) and rolling bearing (9)
Rolling bearing (9) (8) around the shaft is freely rotatable, and rolling bearing (9) upper end is fixing with test platform (10) to be connected, test platform
(10) fall within whole rolling bearing (9), after the promotion by hydraulic vibration exciter (4), follow rolling bearing (9) together, real
Now around the rotation of axle.
Vibration mechine the most according to claim 1, it is characterised in that install big plate (1), pedestal (2) is installed in rotating shaft, swashs
Pedestal (3) installed by the device that shakes, and rotating shaft fixed pedestal (7) all uses A3 steel.
Vibration mechine the most according to claim 1, it is characterised in that the upper limited location device of rotating shaft (8).
Vibration mechine the most according to claim 1, it is characterised in that rolling bearing (9) only one of which freedom of motion,
Utilize the rigidity of its oil film, the motion in other direction can be retrained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610395835.0A CN106052992B (en) | 2016-06-07 | 2016-06-07 | The carrier rocket instrument room angular vibration test platform of low cross-linking coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610395835.0A CN106052992B (en) | 2016-06-07 | 2016-06-07 | The carrier rocket instrument room angular vibration test platform of low cross-linking coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106052992A true CN106052992A (en) | 2016-10-26 |
| CN106052992B CN106052992B (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610395835.0A Active CN106052992B (en) | 2016-06-07 | 2016-06-07 | The carrier rocket instrument room angular vibration test platform of low cross-linking coupling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709708A (en) * | 2018-03-22 | 2018-10-26 | 天津航天瑞莱科技有限公司 | A kind of vibration experiment of aircraft aileron actuator |
| CN112414656A (en) * | 2020-11-06 | 2021-02-26 | 中国电子科技集团公司第十四研究所 | Cabin section vibration test automatic transmission installation system |
| CN114112274A (en) * | 2021-11-05 | 2022-03-01 | 上海机电工程研究所 | Separation test device under random vibration ejection condition and installation test method thereof |
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| WO2006129556A1 (en) * | 2005-05-31 | 2006-12-07 | Idex Co., Ltd. | Transportation packaging test apparatus |
| CN101559396A (en) * | 2009-05-15 | 2009-10-21 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN101936803A (en) * | 2010-07-30 | 2011-01-05 | 中国船舶重工集团公司第七一七研究所 | Large-load mechanical angular vibration table |
| CN203811625U (en) * | 2014-04-30 | 2014-09-03 | 中国地震局工程力学研究所 | Rotating vibration table |
| CN104236836A (en) * | 2013-06-08 | 2014-12-24 | 北京强度环境研究所 | Pressure balancing system and method for rocket conveying pipeline system vibration test |
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2016
- 2016-06-07 CN CN201610395835.0A patent/CN106052992B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006129556A1 (en) * | 2005-05-31 | 2006-12-07 | Idex Co., Ltd. | Transportation packaging test apparatus |
| KR20070085115A (en) * | 2005-05-31 | 2007-08-27 | 아이덱스 가부시키가이샤 | Transportation packaging test apparatus |
| CN101559396A (en) * | 2009-05-15 | 2009-10-21 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN101936803A (en) * | 2010-07-30 | 2011-01-05 | 中国船舶重工集团公司第七一七研究所 | Large-load mechanical angular vibration table |
| CN104236836A (en) * | 2013-06-08 | 2014-12-24 | 北京强度环境研究所 | Pressure balancing system and method for rocket conveying pipeline system vibration test |
| CN203811625U (en) * | 2014-04-30 | 2014-09-03 | 中国地震局工程力学研究所 | Rotating vibration table |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709708A (en) * | 2018-03-22 | 2018-10-26 | 天津航天瑞莱科技有限公司 | A kind of vibration experiment of aircraft aileron actuator |
| CN112414656A (en) * | 2020-11-06 | 2021-02-26 | 中国电子科技集团公司第十四研究所 | Cabin section vibration test automatic transmission installation system |
| CN112414656B (en) * | 2020-11-06 | 2023-02-10 | 中国电子科技集团公司第十四研究所 | Cabin section vibration test automatic transmission installation system |
| CN114112274A (en) * | 2021-11-05 | 2022-03-01 | 上海机电工程研究所 | Separation test device under random vibration ejection condition and installation test method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106052992B (en) | 2018-11-06 |
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