CN102879205B - The adjustable bench test device of rigidity and stiffness tuning method thereof - Google Patents
The adjustable bench test device of rigidity and stiffness tuning method thereof Download PDFInfo
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- CN102879205B CN102879205B CN201210340136.8A CN201210340136A CN102879205B CN 102879205 B CN102879205 B CN 102879205B CN 201210340136 A CN201210340136 A CN 201210340136A CN 102879205 B CN102879205 B CN 102879205B
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Abstract
The present invention, in order to solve the problem of existing bench test device to the testing fatigue poor effect of vehicle complete vehicle or other parts, provides the adjustable bench test device of a kind of rigidity and stiffness tuning method thereof.The present invention is by the setting of bolt and clamp nut in corresponding collet groove and base groove, the setting of support tube height, not only can regulate the rigidity of bench test device easily, especially the incorgruous adjustment of rigidity can be realized, the state of testing fatigue is made more to meet the actual working state of body of a motor car and other parts, to greatly improve precision and the effect of body of a motor car and the test of other Parts, instruct for automobile and parts design provides verification experimental verification accurately.
Description
Technical field
The present invention relates to vehicle complete vehicle and Parts technical field of measurement and test, specifically, relate to the adjustable bench test device of a kind of rigidity and stiffness tuning method thereof.
Background technology
Testing fatigue is for certain product or the parts theoretical research that the performance of not stopping caused by repeated work is constantly degenerated, even destroyed within the scope of finite time, this test can collect the key parameter of resolving product " ageing ", " degenerating " reason, innovative research for designer provides experimental data rare in a large number, effectively ensure Product Design Quality, shorten the research and development examination cycle.
Current vehicle complete vehicle or Parts test normally adopt bench test device, bench test device arranges car load or other parts that corresponding holder needs test, realizes the testing fatigue to vehicle complete vehicle or other parts.
The rigidity of the fixture in existing bench test device is generally arbitrary value or is set to larger rigidity as much as possible, above-mentioned mode is bad for the testing fatigue effect of vehicle complete vehicle or parts, especially for the testing fatigue of assembly parts and single-piece, the testing fatigue mode of the best is the rigidity of rigidity close to mounting points of the fixture on bench test device, the state of the more identical car load of such engine bench test device, the effect of test is unreasonable to be thought.
At present, most of automobile and parts bench test device do not possess stiffness tuning function, maybe cannot consider the rigidity of test unit, more cannot realize the adjustment of different-stiffness size in different directions.Like this, allow the test mode of bench test device more meet the state of vehicle body or other parts by being difficult to, test effect is not ideal.
Summary of the invention
When the present invention carries out testing fatigue in order to solve existing bench test device to body of a motor car or other parts, on bench test device, the rigidity of fixture cannot be adjusted to more close to body of a motor car or other parts rigidity easily, make the problem of the testing fatigue poor effect to vehicle complete vehicle or other parts, the adjustable bench test device of a kind of rigidity and stiffness tuning method thereof are provided
The technical matters that will solve required for the present invention, can be achieved through the following technical solutions:
A first aspect of the present invention, the adjustable bench test device of a kind of rigidity, it is characterized in that, comprise: base, base is provided with vertical column, column top is provided with fixture, column is circumferentially provided with at least two reinforcements vertically, the bottom of reinforcement is fixed on the collet parallel with base, the through hole do not contacted with column is provided with in the middle part of collet, on collet, each reinforcement is provided with the collet groove parallel with osculatory with collet osculatory is other, base is provided with and collet groove base groove one to one, in corresponding multipair collet groove and base groove, wherein being provided with at least one pair of can the bolt of movement in collet groove and base groove, described bolt is fixed with collet and base respectively by clamp nut.
In the present invention, described in be provided with bolt in the collet groove of bolt and base groove quantity be one or more, described bolt is arranged on the optional position in collet groove and base groove.
Described bolt is equipped with clamp nut in the upper and lower both sides of base, and at least side of described bolt in the upper and lower both sides of collet is provided with clamp nut.
In the present invention, described column upper end is provided with can the support tube of movement on column, and described fixture is arranged on the upper end of support tube.
In the present invention, described reinforcement is fin-shaped, and the osculatory of reinforcement and collet extends to the outward flange of collet always.
In the present invention, the lower end of described column adopts ") (" oblique crank Z.
A second aspect of the present invention, a kind of stiffness tuning method of bench test device, it is characterized in that, described bench test device comprises base, base is provided with vertical column, column top is provided with fixture, column is circumferentially provided with at least two reinforcements vertically, the bottom of reinforcement is fixed on the collet parallel with base, the through hole do not contacted with column is provided with in the middle part of collet, on collet, each reinforcement is provided with the collet groove parallel with osculatory with collet osculatory is other, base is provided with and collet groove base groove one to one, realize carrying out stiffness tuning to bench test device by the combination in any of following one or more than one mode:
Mode one: by arranging a bolt in collet groove corresponding to bench test device side and base groove, bolt is fixed with collet and base respectively by clamp nut, realize regulating the increase of this side rigidity of bench test device, wherein, this side rigidity of bench test device along with bolt and column distance increase and progressively increase;
Mode two: by arranging two bolts in collet groove corresponding to bench test device side and base groove, two bolts are fixed with collet and base respectively by clamp nut, realize regulating the increase of this side rigidity of bench test device, wherein, the rigidity of this side of bench test device progressively increases along with the increase of two bolt distances;
Mode three: by arranging two or more bolt in collet groove corresponding to bench test device side and base groove, multiple bolt is fixed with collet and base respectively by clamp nut, realize regulating the increase of this side rigidity of bench test device, wherein, the rigidity of this side of bench test device increases along with the increase of bolt quantity.
In the present invention, in described mode one, mode two and mode three, bolt is equipped with clamp nut in the upper and lower both sides of base, the at least side of bolt in the upper and lower both sides of collet is provided with clamp nut, the rigidity of this side of bench test device is provided with clamp nut and increases along with on the upside of this side collet and/or downside, and bench test device increases along with being provided with clamp nut on the upside of this side collet in the rigidity of the positive offside of column circumference.
In the present invention, in described mode one, mode two and mode three, the rigidity of this side of bench test device increases along with the size of bolt and/or clamp nut and increases.
In the present invention, to the mode of bench test device stiffness tuning, comprise the combination of one or both modes following further:
1) arranging in column upper end can the support tube of movement on column, fixture is arranged on the upper end of support tube, carry out stiffness tuning by the upper-lower position of support tube to bench test device 360 degree of circumference, wherein, the rigidity of bench test device 360 degree of circumference increases along with the reduction of support tube height;
2) lower end of described column adopts ") (" oblique crank Z, and the rigidity of bench test device 360 degree of circumference increases along with the increase of ") (" oblique crank Z diameter.
The adjustable bench test device of rigidity of the present invention and stiffness tuning method thereof, by the setting of bolt and clamp nut in corresponding collet groove and base groove, the setting of support tube height, not only can regulate the rigidity of bench test device easily, especially just right incorgruous adjustment can be realized, the state of testing fatigue is made more to meet the actual working state of body of a motor car and other parts, to greatly improve precision and the effect of body of a motor car and the test of other Parts, instruct for automobile and parts design provides verification experimental verification accurately.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the perspective view of bench test device of the present invention.
Fig. 2 is the front elevation of bench test device of the present invention.
Fig. 3 is the perspective view that bench test device of the present invention disassembles collet and reinforcement.
Fig. 4 is base bottom structural representation of the present invention.
Fig. 5 is the structural representation that support tube of the present invention is in column upper end.
Embodiment
In order to make technological means of the present invention, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the present invention further.
Purport of the present invention is, by carrying out testing fatigue to existing bench test device to vehicle complete vehicle or other parts, especially for the analysis of the testing fatigue demand of assembly parts and single-piece, find that existing bench test device is at stiffness tuning, the deficiency that the incorgruous adjustment of especially rigidity exists, when making testing fatigue, on bench test device, the rigidity of fixture is difficult to the rigidity close to mounting points, cause the problem of the poor effect of testing fatigue, there is provided a kind of structure simple, not only can regulate the size of bench test device rigidity easily, especially the bench test device of the incorgruous adjustment of rigidity and the stiffness tuning method of this bench test device can be carried out easily.
See Fig. 1 and Fig. 2, bench test device of the present invention, comprises base 1, and base 1 is the basis of whole bench test device, and its Main Function supports whole bench test device, is that bench test device can be placed on ground or miscellaneous part.Base 1 is provided with vertical column 2, the top of column 2 is provided with the fixture (not illustrated) of body of a motor car for clamping pending testing fatigue or other parts, when there is deformation towards 360 degree of any one directions of circumference in column 2, by simulated automotive vehicle body or the real duty of other parts to carry out testing fatigue, understandable for different bodies of a motor car and part, rigidity size required under real work state and direction are all different, the size of the rigidity when deformation occurs column 2 and direction is so only had all to meet the demand of body of a motor car or other part real work states, testing fatigue just can be made to obtain good test result.
In the present invention, to achieve these goals, first at the reinforcement 3 be circumferentially provided with vertically of column 2, one end of reinforcement 3 is fixed on column 2 and outer wall along column 2 extends at vertical direction, the effect of reinforcement 3 is the adjustment that the rigidity coordinating other assemblies to strengthen column 2 realizes column 2 rigidity size on the one hand, the reinforcement 3 of varying number is set on the other hand according to actual needs, can realize the adjustment (i.e. incorgruous adjustment) of column 2 different directions, different-stiffness size, specific implementation will be described in detail below.Only that the reinforcement 3 arranging 4 an angle of 90 degrees intervals carries out exemplary illustration in the present embodiment, not limitation of the present invention, the quantity of reinforcement 3 can be chosen according to actual needs, and reinforcement 3 both can be that angularly interval is arranged, and also can right and wrong angularly arrange at interval.Along with increasing of reinforcement 3 quantity, the angle of the incorgruous adjustment of column 2 rigidity will be more, correspondingly bench test device manufacture and assembling also will get over trouble.
Have employed the reinforcement 3 of fin-shaped in the present embodiment, the bottom of multiple reinforcement 3 is fixed on collet 4, and extends to the outward flange of collet 4 along the upper surface reinforcement 3 of collet 4 and the osculatory of collet 4 from the side of column 2 always.Collet 4 and base 1 be arranged in parallel, the through hole do not contacted with column 2 is provided with in the middle part of collet 4, like this when actual assembling, collet 4 is inserted in column 2 from the upper end of column 2, by the mode of welding, the side of reinforcement 3 and bottom is separately fixed at the outer wall of column 2 and the upper surface of collet 4 again after reaching installation position.
Base 1 and collet 2 can adopt arbitrary shape, and in the present embodiment, base 1 and collet 2 all adopt circle to be only carry out exemplary illustration and be not limitation of the present invention.It is appreciated of course that when collet 4 adopts circle, the bottom of multiple reinforcement 3 will be equal to the outer peripheral distance of collet 4, makes reinforcement 3 can adopt identical structure, be convenient to manufacture and assembling.
On collet 4, each reinforcement 3 is provided with the collet groove 41 parallel with osculatory with collet 4 osculatory is other, as shown in Figure 3, base 1 is then provided with and each collet groove 41 base groove 11 one to one.Can arrange bolt 5 in corresponding collet groove 41 and base groove 11, bolt 5 is fixed with collet 4 and base 1 respectively by clamp nut 6 again.Like this, after being provided with clamp nut 6 in the collet groove 41 and base groove 11 of a certain correspondence, due to the acting in conjunction of clamp nut 6 and bolt 5, make to obtain mutual support between collet 4 and base 1, again by being fixed on the effect of the reinforcement 3 on collet 4, column 2 is made to obtain increase towards this to the rigidity of collet groove 41 and base groove 11 side.
When bolt 5 is fixed on base 1 and collet 4, base 1 and collet 4 all can be provided with clamp nut 6 in respective both sides up and down, Fig. 2 all arranges clamp nut 6 with base 1 and the respective both sides up and down of collet 2 and has carried out illustrating (clamp nut 6 on the downside of base 1 is invisible, concrete reference diagram 4).For the clamp nut 6 on base 1, preferably all arrange in the both sides up and down of base 6, the stability of bolt 5 can be ensured like this; Clamp nut on collet 26 can be considered according to the actual needs of stiffness tuning, but at least should arrange at least side in the upper and lower both sides of collet.
In the collet groove 41 of each correspondence and base groove 11 when putting into, can arrange the bolt 5 of any amount, different stiffness tuning effects will be played in the bolt 5 of varying number and the position of bolt in collet groove 41 and base groove 11.By arranging different bolts 5, the impact of stiffness tuning is described in detail below:
See Fig. 4, first kind of way, in the bench test device collet groove 41 that wherein side is corresponding and base groove 11, arrange a bolt 5, the quantity due to bolt 5 only has one, is little to the enhancing of bench test device (i.e. column 2) this side rigidity.Because collet groove 41 and base groove 11 have certain length, bolt 5 can move in collet groove 41 and base groove 11, and bolt 5 is in collet groove 41 and base groove 11 diverse location, will be different on the impact of stiffness tuning.In Fig. 4, in the collet groove 41 of top and base groove 11, a bolt 5 is only set, current bolt 5 is positioned at the position near base 1 center (i.e. column 2 side), when bolt 5 moves towards base 1 center, this side rigidity of bench test device will progressively reduce, when bolt 5 is away from base 1 center, this side rigidity of bench test device will progressively increase.Namely when only arranging a bolt 5 in collet groove 41 and base groove 11, this side rigidity of bench test device is regulated by the distance at bolt 5 and the base 1 center distance of column 2 (namely with) size, and this side rigidity of bench test device progressively increases along with bolt 5 and the increase of column 2 distance.
The second way, in the bench test device collet groove 41 that wherein side is corresponding and base groove 11, two bolts 5 are set, now due to the increase of bolt 5 quantity, the rigidity of this side of bench test device can than large when arranging a bolt 5, and the distance of two bolts 5 in collet groove 41 and base groove 11 becomes the principal element regulating this side rigidity size of bench test device.In Fig. 4, two bolts 5 are provided with in the collet groove 41 of below and base groove 11, two bolts 5 are positioned at collet groove 41 and base groove 11 two ends connect antermarginal position, when the distance of two bolts 5 diminishes, the rigidity of this side of bench test device will reduce, when the distance of two bolts 5 becomes large, the rigidity of this side of bench test device will increase.Namely when arranging two bolts 5 in collet groove 41 and base groove 11, this side rigidity of bench test device is regulated by the distance size of two bolts 5, and this side rigidity of bench test device progressively increases along with the increase of two bolt 5 distances.Certainly, be understandable that, when distance one timing of two bolts 5, two bolts 5 are larger with the distance of column 2, and the rigidity of this side of bench test device is larger.
The third mode, in the bench test device collet groove 41 that wherein side is corresponding and base groove 11, arrange plural bolt 5, now the quantity primarily of bolt 5 decides by the rigidity of this side of bench test device.The quantity of bolt 5 is more, the rigidity of this side of bench test device will be larger, be understandable that, also can there be impact the size of total distance of multiple bolt 5 and the position in collet groove 41 and base groove 11 on the rigidity size of this side of bench test device, but the quantity of bolt 5 will be principal element.Fig. 4 is schematically provided with 3 bolts 5 in the collet groove 41 and base groove 11 on right side, when needing larger rigidity, can arrange more bolt 5 completely as long as can place.
Above-mentioned three kinds of modes can carry out different combinations in the different collet groove 41 of same bench test device and base groove 11, such as shown in Fig. 4, wherein 3 to have employed three kinds of different modes respectively in 4 pairs of collet grooves 41 and base groove 11, bolt 5 is not then set in the collet groove 41 and base groove 11 in left side.Like this, except the rigidity on the left of bench test device can not regulate, the rigidity of other three sides can at random regulate, and when different collet grooves 41 and base groove 11 adopt above-mentioned identical mode, the bench test device not adjustment of homonymy rigidity carries out in identical scope; When different collet grooves 41 and base groove 11 adopt above-mentioned not identical mode, the bench test device not adjustment of homonymy rigidity carries out in different scopes.By above-mentioned mode, momentarily can carry out the adjustment of bench test device not homonymy rigidity according to the demand of body of a motor car and Parts test, achieve the incorgruous adjustment of bench test device rigidity.
It is to be noted, only carried out exemplary illustration in Fig. 4, both can select to arrange for often pair of collet groove 41 and base groove 11 in bench test device the adjustment that bolt 5 and clamp nut 6 realize this side rigidity, and also can select not arrange bolt 5 and the rigidity of clamp nut 6 to this side does not regulate.Simultaneously, in often pair of collet groove 41 and base groove 11 when selecting to arrange bolt 5 and clamp nut 6, all can select arbitrarily in above-mentioned three kinds of modes, so when possessing multipair collet groove 41 and base groove 11, array mode between different collet grooves 41 and base groove 11 will be very many, can not illustrate one by one in the present embodiment, spiritual those skilled in the art according to the present invention can select completely as required, are not repeated herein.
In addition, when bench test device needs the direction of adjustment more, can realize by arranging more reinforcement 3 on column 2, the quantity of reinforcement 3 is more, and can directly regulate the direction of rigidity more, the realization of the incorgruous adjustment of rigidity is also easier.
For above-mentioned three kinds of modes, the setting that collet about 4 both sides are used for the clamp nut 6 of set bolt 5 also has booster action for stiffness tuning.No matter on the upside of collet 4 or downside arranges clamp nut 6,, bolt 5 position certain in bolt 5 quantity is certain, the rigidity of this collet 4 side of bench test device all can be made relatively not arrange clamp nut 6 increase, the clamp nut 6 of collet 4 next time plays a major role in increase rigidity; Simultaneously, clamp nut 6 is set on the downside of collet 4, bench test device also can be made to increase in the rigidity of the positive offside of this collet 4 one heel post 2 circumference, even if this side reinforcement 3 of this collet 4 does not arrange reinforcement 3(such as at the positive offside of column 2 circumference, the set-up mode of odd number reinforcement 3), the impact of increase also can be played on the rigidity of surrounding.
Above-mentioned setting, mainly realizes the adjustment in bench test device different directions rigidity, and different directions stiffness tuning is also relatively independent each other.Present invention also offers two kinds of modes circumferentially can carrying out unifying to regulate bench test device 360 degree:
First kind of way, arranges support tube 7 in column 2 upper end, and support tube 7 can move on column 2, and fixture is then arranged on the upper end of support tube 7, and the different upper-lower position of support tube 7 will carry out stiffness tuning to bench test device 360 degree of circumference simultaneously.The height of support tube 7 is lower, and the rigidity of bench test device 360 degree of circumference will be larger.In Fig. 1, bench test device be in column 2 bottom, the rigidity of bench test device 360 degree of circumference simultaneously maximumly (will not consider the mode of respective incorgruous adjustment, lower same), in Fig. 5, the top being in column 2 of bench test device, the rigidity of bench test device 360 degree of circumference will be simultaneously minimum.
The second way, as shown in Figure 3, adopt ") (" oblique crank Z in the lower end of column 2, the rigidity of bench test device 360 degree of circumference increases along with the increase of ") (" oblique crank Z diameter.It is to be noted, circumferentially rigidity is unified to the mode that regulates bench test device 360 degree, individually can adopt on the one hand, can employing be combined on the other hand for above-mentioned two kinds, meanwhile, the two at random can also combine with the mode of the incorgruous adjustment of aforesaid rigidity.Inventions have been open fully, those skilled in the art can implement when not spending creative work, and various embodiment all should in the scope of claims of the present invention request protection.
Below only just preferred embodiment of the present invention is described, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete structure allows to change.In a word, all various changes done in the protection domain of independent claims of the present invention are all in protection scope of the present invention.
Claims (10)
1. the adjustable bench test device of rigidity, comprise: base, base is provided with vertical column, column top is provided with fixture, column is circumferentially provided with at least two reinforcements vertically, it is characterized in that: the bottom of reinforcement is fixed on the collet parallel with base, the through hole do not contacted with column is provided with in the middle part of collet, on collet, each reinforcement is provided with the collet groove parallel with osculatory with collet osculatory is other, base is provided with and collet groove base groove one to one, in corresponding multipair collet groove and base groove, wherein being provided with at least one pair of can the bolt of movement in collet groove and base groove, described bolt is fixed with collet and base respectively by clamp nut.
2. the adjustable bench test device of rigidity according to claim 1, it is characterized in that: described in be provided with bolt in the collet groove of bolt and base groove quantity be one or more, described bolt is arranged on the optional position in collet groove and base groove.
3. the adjustable bench test device of rigidity according to claim 2, is characterized in that: described bolt is equipped with clamp nut in the upper and lower both sides of base, and at least side of described bolt in the upper and lower both sides of collet is provided with clamp nut.
4. according to the arbitrary described adjustable bench test device of rigidity of claims 1 to 3, it is characterized in that: described column upper end is provided with can the support tube of movement on column, and described fixture is arranged on the upper end of support tube.
5., according to the arbitrary described adjustable bench test device of rigidity of claims 1 to 3, it is characterized in that: described reinforcement is fin-shaped, the osculatory of reinforcement and collet extends to the outward flange of collet always.
6. according to the arbitrary described adjustable bench test device of rigidity of claims 1 to 3, it is characterized in that: the lower end of described column adopts ") (" oblique crank Z.
7. the stiffness tuning method of bench test device, described bench test device comprises base, base is provided with vertical column, column top is provided with fixture, column is circumferentially provided with at least two reinforcements vertically, it is characterized in that: the bottom of reinforcement is fixed on the collet parallel with base, the through hole do not contacted with column is provided with in the middle part of collet, on collet, each reinforcement is provided with the collet groove parallel with osculatory with collet osculatory is other, base is provided with and collet groove base groove one to one, realize carrying out stiffness tuning to bench test device by the combination in any of following one or more than one mode:
Mode one: by arranging a bolt in collet groove corresponding to bench test device side and base groove, bolt is fixed with collet and base respectively by clamp nut, realize regulating the increase of this side rigidity of bench test device, wherein, this side rigidity of bench test device along with bolt and column distance increase and progressively increase;
Mode two: by arranging two bolts in collet groove corresponding to bench test device side and base groove, two bolts are fixed with collet and base respectively by clamp nut, realize regulating the increase of this side rigidity of bench test device, wherein, the rigidity of this side of bench test device progressively increases along with the increase of two bolt distances;
Mode three: by arranging two or more bolt in collet groove corresponding to bench test device side and base groove, multiple bolt is fixed with collet and base respectively by clamp nut, realize regulating the increase of this side rigidity of bench test device, wherein, the rigidity of this side of bench test device increases along with the increase of bolt quantity.
8. the stiffness tuning method of bench test device according to claim 7, it is characterized in that: in described mode one, mode two and mode three, bolt is equipped with clamp nut in the upper and lower both sides of base, the at least side of bolt in the upper and lower both sides of collet is provided with clamp nut, the rigidity of this side of bench test device is provided with clamp nut and increases along with on the upside of this side collet and/or downside, and bench test device increases along with being provided with clamp nut on the upside of this side collet in the rigidity of the positive offside of column circumference.
9. the stiffness tuning method of bench test device according to claim 8, is characterized in that: in described mode one, mode two and mode three, and the rigidity of this side of bench test device increases along with the size of bolt and clamp nut and increases.
10. according to the stiffness tuning method of the arbitrary described bench test device of claim 7 to 9, it is characterized in that: to the mode of bench test device stiffness tuning, comprise the combination of one or both modes following further:
1) arranging in column upper end can the support tube of movement on column, fixture is arranged on the upper end of support tube, carry out stiffness tuning by the upper-lower position of support tube to bench test device 360 degree of circumference, wherein, the rigidity of bench test device 360 degree of circumference increases along with the reduction of support tube height;
2) lower end of described column adopts ") (" oblique crank Z, and the rigidity of bench test device 360 degree of circumference increases along with the increase of ") (" oblique crank Z diameter.
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| CN201210340136.8A CN102879205B (en) | 2012-09-14 | 2012-09-14 | The adjustable bench test device of rigidity and stiffness tuning method thereof |
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| CN201210340136.8A CN102879205B (en) | 2012-09-14 | 2012-09-14 | The adjustable bench test device of rigidity and stiffness tuning method thereof |
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| CN103434656B (en) * | 2013-09-10 | 2015-07-01 | 北京航空航天大学 | Rigidity simulator with variable rigidity |
| CN112621684B (en) * | 2020-12-29 | 2023-12-01 | 上海渤元信息科技有限公司 | Bench experiment device with adjustable automobile rigidity and rigidity adjusting method thereof |
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