CN101551292B - Horizontal vibration testing system for super-long test piece and method thereof - Google Patents
Horizontal vibration testing system for super-long test piece and method thereof Download PDFInfo
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- CN101551292B CN101551292B CN200910009291XA CN200910009291A CN101551292B CN 101551292 B CN101551292 B CN 101551292B CN 200910009291X A CN200910009291X A CN 200910009291XA CN 200910009291 A CN200910009291 A CN 200910009291A CN 101551292 B CN101551292 B CN 101551292B
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Abstract
The invention relates to a horizontal vibration testing system for a super-long test piece and a method thereof. The method comprises the following steps: at least two horizontal sliding tables are sequentially arranged along the motion direction of a vibration generator, and the motion direction of sliding plates of each horizontal sliding table is consistent with that of the vibration generator;one end of one sliding plate of the horizontal sliding table is connected with a vibrating table, and the other sliding plate of the horizontal sliding table can slide perpendicularly to the motion d irection of the vibration generator; two ends of the test piece are respectively fixed on the two horizontal sliding tables, and the longitudinal axis of the test piece is consistent with the motion direction of the vibration generator; and the vibration generator is started and horizontal vibration testing is conducted. The method has simple operation, and high accuracy and good precision of testing results; moreover, the adopted device has simple structure, low cost and stable performance, is not easy to be damaged, and is suitable for horizontal vibration testing for super-long super-large test pieces with various specifications.
Description
Technical field
The present invention relates to a kind of horizontal vibration pilot system and the method for vibration test technical field, particularly a kind of horizontal vibration pilot system and method for overlength test specimen.
Background technology
Vibration table is a kind of equipment that product or parts is carried out the vibration simulation test, in order to evaluate the anti-seismic performance of a product, for examining this product quality that rational basis is provided, therefore be widely used in industries such as space flight, aviation, boats and ships, automobile, electronics, communication, household electrical appliances and instrument and meter.
When test specimen (particularly complete machine) need carry out horizontal vibration test and relies on rotating vibration test platform position and it can't be installed and fixed the time, then will be by horizontal sliding table, its effect is in the horizontal direction the motion of vibration machine to be passed to test specimen, perhaps in the horizontal vibration test, support System for Large-scale Specimen.Be illustrated in figure 1 as the axis of reference system of the motion platform (slide plate 1) of horizontal sliding table, the initial point of axis of reference system is o (tie point of slide plate 1 and vibration machine 2), oz is the longitudinal axis among the figure, and it is parallel to the direction of motion of vibration machine, and points to free end from the slide plate force transfer surface, the ox axle is a Z-axis, perpendicular to sled surface, the oy axle is a transverse axis, with above-mentioned two quadratures, α is for rolling angle (around the rotation of y axle), and β is that roll angle (around the rotation of z axle), ψ are crab angle (around the rotation of x axle).Generally speaking, high-quality horizontal sliding table should have wider frequency, less waveform and play limit, bigger load capacity and power transport, and (around the rotation of y axle) has higher restriction ability to rolling, deflection and pitching moment.
At present to the overlength test specimen, during as the testing equipments such as antenna for base station of rocket, mobile communication, the following two kinds of methods of main employing, the first is carried out vibration-testing with test specimen along crosswise fixed on horizontal vibration platform, but this mode can cause test specimen two ends and center fixed position to have the different of vibration acceleration size and phase place; It two is longitudinally to be fixed on test specimen on the horizontal vibration platform, at this moment, one end of test specimen is fixed on the horizontal sliding table table top, and the other end is a free end, for reducing the unbalance loading of horizontal sliding table table top, usually the test specimen free end is hung or is held on another horizontal sliding table table top, then carry out the horizontal vibration test, but if adopt last mode, then the two ends of test specimen easily produce skew at vertical direction, cause the pitching moment of slide plate to increase, and each position phase place of test specimen upper edge longitudinally there are differences, and if adopt back one mode, even then select two identical horizontal sliding tables fixing two ends of test specimen respectively for use, because of test specimen very long, the longitudinal axis of test specimen and the application of force direction of shaking table are consistent fully, can cause slide plate to deflect like this, influence precision of test result on the one hand, also will cause horizontal sliding table impaired on the other hand.
Summary of the invention
One of purpose of the present invention is to propose a kind of can be used for the overlength test specimen is accurately tested, and can not influence the vibration test method of the overlength test specimen of vibration rig performance, to overcome deficiency of the prior art.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of vibration test method of overlength test specimen is characterized in that, this method is:
The direction of motion of at least two horizontal sliding tables along vibration machine is arranged in order, and the direction of motion of each horizontal sliding table slide plate is consistent with the direction of motion of vibration machine;
Horizontal slide plate one end of one horizontal sliding table is connected with vibration machine, and the horizontal slide plate of all the other horizontal sliding tables also can be done the slip perpendicular to vibration machine direction of motion;
The two ends of test specimen are separately fixed on one of a described horizontal sliding table and described all the other horizontal sliding tables, and the longitudinal axis of test specimen is consistent with the direction of motion of vibration machine;
The Vibration on Start-up generator carries out the horizontal vibration test.
Particularly, described all the other horizontal sliding tables comprise horizontal slide plate, hydrostatic slideway, guide rail cover plate and track base, the guide rail cover plate is arranged at the track base upper end, formation one can be held the storage tank of hydrostatic slideway between guide rail cover plate and the track base upper end, and hydrostatic slideway can slide along the direction perpendicular to the guide rail longitudinal axis in this storage tank, the hydrostatic slideway upper surface is concordant substantially with guide rail cover plate upper surface, and the guide rail movable part of horizontal slide plate and hydrostatic slideway upper end is fastenedly connected.
Described hydrostatic slideway is a T type guide rail, described storage tank comprises on the guide rail cover plate groove that the opening that is provided with along the guide rail longitudinally with corresponding position, T type guide rail top and track base top are provided with, T type guide rail upper and lower is arranged at respectively in this opening and the groove, and all leaves the gap between two walls of T type guide rail top both sides outer wall and opening and between the both sides inwall of T type guide rail bottom both sides outer wall and groove.
In the described guide rail cover plate throttling housing screw is set, one throttle orifice that runs through plug screw vertically is set on this screw, this throttle orifice one end is communicated with oil duct in the guide rail cover plate, and the other end is communicated with gap between guide rail cover plate lower surface and the upper surface, T type guide rail bottom.
In this method, before being fixed to test specimen on the horizontal sliding table, also can pass through slide unit height adjustment mechanism level-off slide unit height, the horizontal slide plate of each horizontal sliding table is on the same surface level, the slide unit height adjustment mechanism is set on the described horizontal sliding table, this mechanism comprises the screw rod support member of vertical setting, and this screw rod support member one end is connected with the horizontal sliding table bottom, and the other end is fixedly set on the ground.
Another object of the present invention is to propose a kind of can be used for accurately tests the overlength test specimen, and the vibration experiment of the overlength test specimen of stable performance, and its technical scheme is as follows:
A kind of vibration experiment of overlength test specimen, involving vibrations generator and at least two horizontal sliding tables that are arranged in order along vibration machine direction of motion, and the horizontal slide plate direction of motion of each horizontal sliding table is consistent with vibration machine direction of motion, wherein a horizontal sliding table is connected with vibration machine, it is characterized in that, all the other horizontal sliding tables comprise horizontal slide plate, hydrostatic slideway, guide rail cover plate and track base, the guide rail cover plate is arranged at the track base upper end, formation one can be held the storage tank of hydrostatic slideway between guide rail cover plate and the track base upper end, and hydrostatic slideway can slide along the direction perpendicular to the guide rail longitudinal axis in this storage tank, the hydrostatic slideway upper surface is concordant substantially with guide rail cover plate upper surface, and the guide rail movable part of horizontal slide plate and hydrostatic slideway upper end is fastenedly connected.
Say further, described hydrostatic slideway is a T type guide rail, described storage tank comprises on the guide rail cover plate groove that the opening that is provided with along the guide rail longitudinally with corresponding position, T type guide rail top and track base top are provided with, T type guide rail upper and lower is arranged at respectively in this opening and the groove, and all leaves the gap between two walls of T type guide rail top both sides outer wall and opening and between the both sides inwall of T type guide rail bottom both sides outer wall and groove.
In the described guide rail cover plate throttling housing screw is set, one throttle orifice that runs through plug screw vertically is set on this screw, this throttle orifice one end is communicated with oil duct in the guide rail cover plate, and the other end is communicated with gap between guide rail cover plate lower surface and the upper surface, T type guide rail bottom.
The slide unit height adjustment mechanism is set on the described horizontal sliding table, and this mechanism comprises the screw rod support member of vertical setting, and this screw rod support member one end is connected with the horizontal sliding table bottom, and the other end is fixedly set on the ground.
Adopt among the present invention horizontal sliding table more than two and a vibration machine (as shaking table) combination, and the mode of will be wherein not adjusting with the direct-connected horizontal sliding table structure of shaking table, make up a kind of horizontal vibration pilot system and method that the overlength test specimen is accurately tested of being suitable for, thereby overcome the unsolved always for a long time technical matters of those skilled in the art.
Concretely, among the present invention by will not adjusting in this vibration experiment with the guide rail bearing and the guide rail structure of cover plate of the direct-connected horizontal sliding table of shaking table, hydrostatic slideway can be slided on the direction perpendicular to guide rail fore and aft axis (being the direction of motion of horizontal sliding table slide plate), depart from slide plate deflection in the test process that shaking table direction of motion causes thereby eliminated longitudinal axis because of the overlength test specimen, ensured precision of test result and degree of accuracy; Simultaneously, it is unlikely impaired in test process that this adjustment also makes the structure of horizontal sliding table.
Furthermore, the adjustment of among the present invention guide rail bearing and guide cover plate structure being done only is that the width of the storage tank that will form between guide rail bearing and the guide rail cover plate increases a little, make between the both sides outer wall of the inwall of storage tank and hydrostatic slideway and form certain clearance, thereby hydrostatic slideway can be laterally moved in storage tank.This kind adjustment mode is operated very easy.Above-mentioned hydrostatic slideway preferably adopts T type guide rail.
In addition, the slide unit height adjustment mechanism is set also in each horizontal sliding table among the present invention,, this horizontal vibration pilot system can be normally moved to adjust the height of each horizontal sliding table in ground out-of-flatness place.
The method of utilizing the vibration experiment of this overlength test specimen that the overlength test specimen is tested is as follows:
The direction of motion of plural horizontal sliding table along vibration machine is arranged in order, and the direction of motion of each horizontal sliding table slide plate is consistent with the direction of motion of vibration machine;
Horizontal slide plate one end of one horizontal sliding table is connected with shaking table, adjusts the height of each horizontal sliding table, the horizontal slide plate of each horizontal sliding table is on the same surface level;
Test specimen is fixed on these horizontal sliding tables, and the longitudinal axis of test specimen is consistent with the direction of motion of vibration machine;
The Vibration on Start-up generator carries out the horizontal vibration test.
Compared with prior art, beneficial effect of the present invention is: the vibration test method of this overlength test specimen is easy and simple to handle, test result accuracy height, precision are good, and the device structure that is adopted is simple, with low cost, stable performance, and be difficult for along bad, be suitable for the overlength super large test specimen of all size is carried out the horizontal vibration test.
Description of drawings
Below in conjunction with the drawings and the specific embodiments content of the present invention is described further.
Fig. 1 is that the axis of reference of horizontal sliding table is a synoptic diagram;
Fig. 2 is the structural representation of the vibration experiment of overlength test specimen in the specific embodiment of the invention;
Fig. 3 is the structural representation of horizontal sliding table among Fig. 2;
Fig. 4 is the cross-sectional view of horizontal sliding table among Fig. 2.
Embodiment
Shown in Fig. 2～4, the vibration experiment of this overlength test specimen comprises an electric vibration table 2 and three horizontal sliding tables 31 that are arranged in order along vibration machine direction of motion, 32,33, and each horizontal sliding table skateboarding direction is consistent with electric vibration table direction of motion, wherein, horizontal sliding table comprises horizontal slide plate, the hydrostatic slideway 7 of T type, guide rail cover plate 5 and track base 6, the guide rail cover plate is arranged at the track base upper end, form a storage tank 8 that can hold hydrostatic slideway between the two, and hydrostatic slideway can slide along the direction perpendicular to the guide rail longitudinal axis in this storage tank, the hydrostatic slideway upper surface is concordant substantially with guide rail cover plate upper surface, and the guide rail movable part of horizontal slide plate and hydrostatic slideway upper end is fastenedly connected.Above-mentioned storage tank comprises on the guide rail cover plate groove that the opening that is provided with along the guide rail longitudinally with corresponding position, T type guide rail top and track base top are provided with, T type guide rail upper and lower is arranged at respectively in this opening and the groove, and all leaves gap 81,82 between two walls of T type guide rail top both sides outer wall and opening and between the both sides inwall of T type guide rail bottom both sides outer wall and groove.Simultaneously, throttling housing screw 9 is set in the guide rail cover plate, one throttle orifice that runs through plug screw vertically is set on this screw, and this throttle orifice one end is communicated with oil duct 10 in the guide rail cover plate, and the other end is communicated with gap between guide rail cover plate lower surface and the upper surface, T type guide rail bottom.In addition, slide unit height adjustment mechanism 11 is set on the horizontal sliding table, this mechanism comprises the screw rod support member that plurality of vertical is provided with, these screw rod support member one ends are connected with the horizontal sliding table bottom, the other end is fixedly set on the ground, by adjusting the length that is threaded of these support members and horizontal sliding table, can adjust the height of horizontal sliding table.
The method of utilizing the vibration experiment of this overlength test specimen that the overlength test specimen is tested is as follows:
One horizontal sliding table slide plate, 31 1 ends are connected with electric vibration table 2, adjust the height of each horizontal sliding table 31,32,33, each horizontal sliding table slide plate is on the same surface level;
Test specimen 4 one ends are fixed on the horizontal sliding table 31, and the other end is fixed on the horizontal sliding table 33, and the longitudinal axis of test specimen is consistent with the direction of motion of electric vibration table;
Start electric vibration table, carry out the horizontal vibration test.
The vibrational system of this overlength test specimen is simple in structure, and is with low cost, stable performance, and being difficult for along bad, and simultaneously, its method is easy and simple to handle, test result accuracy height, precision are good, is suitable for the overlength super large test specimen of all size is carried out the horizontal vibration test.
Above embodiment only is used to illustrate content of the present invention, and in addition, the present invention also has other embodiments.But all employings are equal to replaces or technical scheme that the equivalent deformation mode forms all drops in protection scope of the present invention.
Claims (9)
1. the vibration test method of an overlength test specimen is characterized in that, this method is:
The direction of motion of at least two horizontal sliding tables along vibration machine is arranged in order, and the direction of motion of the horizontal slide plate of each horizontal sliding table is consistent with the direction of motion of vibration machine;
Horizontal slide plate one end of one horizontal sliding table is connected with vibration machine, and the horizontal slide plate of all the other horizontal sliding tables also can be done the slip perpendicular to vibration machine direction of motion;
The two ends of test specimen are separately fixed on one of a described horizontal sliding table and described all the other horizontal sliding tables, and the longitudinal axis of test specimen is consistent with the direction of motion of vibration machine;
The Vibration on Start-up generator carries out the horizontal vibration test.
2. the vibration test method of overlength test specimen according to claim 1, it is characterized in that described all the other horizontal sliding tables comprise horizontal slide plate, hydrostatic slideway, guide rail cover plate and track base, the guide rail cover plate is arranged at the track base upper end, formation one can be held the storage tank of hydrostatic slideway between guide rail cover plate and the track base upper end, and hydrostatic slideway can slide along the direction perpendicular to the guide rail longitudinal axis in this storage tank, the hydrostatic slideway upper surface is concordant substantially with guide rail cover plate upper surface, and the guide rail movable part of horizontal slide plate and hydrostatic slideway upper end is fastenedly connected.
3. the vibration test method of overlength test specimen according to claim 2, it is characterized in that described hydrostatic slideway is a T type guide rail, described storage tank comprises on the guide rail cover plate groove that the opening that is provided with along the guide rail longitudinally with corresponding position, T type guide rail top and track base top are provided with, T type guide rail upper and lower is arranged at respectively in this opening and the groove, and all leaves the gap between two walls of T type guide rail top both sides outer wall and opening and between the both sides inwall of T type guide rail bottom both sides outer wall and groove.
4. the vibration test method of overlength test specimen according to claim 3, it is characterized in that in the described guide rail cover plate throttling housing screw being set, one throttle orifice that runs through plug screw vertically is set on this screw, this throttle orifice one end is communicated with oil duct in the guide rail cover plate, and the other end is communicated with gap between guide rail cover plate lower surface and the upper surface, T type guide rail bottom.
5. the vibration test method of overlength test specimen according to claim 1, it is characterized in that in this method, before being fixed to test specimen on the horizontal sliding table, also can pass through slide unit height adjustment mechanism level-off slide unit height, the horizontal slide plate of each horizontal sliding table is on the same surface level, the slide unit height adjustment mechanism is set on the described horizontal sliding table, this mechanism comprises the screw rod support member of vertical setting, this screw rod support member one end is connected with the horizontal sliding table bottom, and the other end is fixedly set on the ground.
6. the vibration experiment of an overlength test specimen, involving vibrations generator and at least two horizontal sliding tables that are arranged in order along vibration machine direction of motion, and the horizontal slide plate direction of motion of each horizontal sliding table is consistent with vibration machine direction of motion, wherein a horizontal sliding table is connected with vibration machine, it is characterized in that, all the other horizontal sliding tables comprise horizontal slide plate, hydrostatic slideway, guide rail cover plate and track base, the guide rail cover plate is arranged at the track base upper end, formation one can be held the storage tank of hydrostatic slideway between guide rail cover plate and the track base upper end, and hydrostatic slideway can slide along the direction perpendicular to the guide rail longitudinal axis in this storage tank, the hydrostatic slideway upper surface is concordant substantially with guide rail cover plate upper surface, and the guide rail movable part of horizontal slide plate and hydrostatic slideway upper end is fastenedly connected.
7. the vibration experiment of overlength test specimen according to claim 6, it is characterized in that described hydrostatic slideway is a T type guide rail, described storage tank comprises on the guide rail cover plate groove that the opening that is provided with along the guide rail longitudinally with corresponding position, T type guide rail top and track base top are provided with, T type guide rail upper and lower is arranged at respectively in this opening and the groove, and all leaves the gap between two walls of T type guide rail top both sides outer wall and opening and between the both sides inwall of T type guide rail bottom both sides outer wall and groove.
8. the vibration experiment of overlength test specimen according to claim 7, it is characterized in that in the described guide rail cover plate throttling housing screw being set, one throttle orifice that runs through plug screw vertically is set on this screw, this throttle orifice one end is communicated with oil duct in the guide rail cover plate, and the other end is communicated with gap between guide rail cover plate lower surface and the upper surface, T type guide rail bottom.
9. the vibration experiment of overlength test specimen according to claim 6, it is characterized in that being provided with on the described horizontal sliding table slide unit height adjustment mechanism, this mechanism comprises the screw rod support member of vertical setting, and this screw rod support member one end is connected with the horizontal sliding table bottom, and the other end is fixedly set on the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910009291XA CN101551292B (en) | 2009-02-27 | 2009-02-27 | Horizontal vibration testing system for super-long test piece and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910009291XA CN101551292B (en) | 2009-02-27 | 2009-02-27 | Horizontal vibration testing system for super-long test piece and method thereof |
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| Publication Number | Publication Date |
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| CN101551292A CN101551292A (en) | 2009-10-07 |
| CN101551292B true CN101551292B (en) | 2011-04-06 |
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| CN200910009291XA Expired - Fee Related CN101551292B (en) | 2009-02-27 | 2009-02-27 | Horizontal vibration testing system for super-long test piece and method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156034B (en) * | 2011-03-24 | 2012-07-04 | 浙江大学 | Vibration table fixture capable of accurately adjusting center of gravity |
| CN102252814A (en) * | 2011-06-17 | 2011-11-23 | 苏州长菱测试技术有限公司 | Vibration test system and method for electric locomotive grounding device |
| CN103063389B (en) * | 2012-12-27 | 2015-07-01 | 苏州长菱测试技术有限公司 | System and method of horizontal vibration testing of oversized test piece |
| CN104048562B (en) * | 2013-09-30 | 2016-01-20 | 中国人民解放军国防科学技术大学 | A kind of full bullet vertical vibration test safety device |
| CN105738055B (en) * | 2014-12-08 | 2018-06-26 | 天津航天瑞莱科技有限公司 | distributed horizontal supporting system |
| CN106288984B (en) * | 2015-06-12 | 2018-11-02 | 北京强度环境研究所 | The constrained procedure of axial vibration under a kind of full-scale bullet horizontality |
| US10465746B2 (en) * | 2017-02-22 | 2019-11-05 | Team Corporation | Vibration test fixture |
| CN111649891A (en) * | 2020-06-29 | 2020-09-11 | 苏州苏试试验集团股份有限公司 | Temperature and humidity vibration test equipment |
| CN112485146B (en) * | 2020-11-19 | 2024-01-02 | 榆林学院 | Orthogonal oscillation simulation device and method for measuring anti-scour performance of test piece |
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2009
- 2009-02-27 CN CN200910009291XA patent/CN101551292B/en not_active Expired - Fee Related
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| CN101551292A (en) | 2009-10-07 |
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Effective date of registration: 20110926 Address after: 215163 Jiangsu high tech Zone, Suzhou hi tech Zone Longshan Road, No. 2 Patentee after: Suzhou Changling Test Technology Co., Ltd. Address before: 215163 Jiangsu high tech Zone, Suzhou hi tech Zone Longshan Road, No. 2 Co-patentee before: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Patentee before: Suzhou Changling Test Technology Co., Ltd. |
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