CN101788391A - Fatigue and vibration experiment module - Google Patents
Fatigue and vibration experiment module Download PDFInfo
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- CN101788391A CN101788391A CN 201010123895 CN201010123895A CN101788391A CN 101788391 A CN101788391 A CN 101788391A CN 201010123895 CN201010123895 CN 201010123895 CN 201010123895 A CN201010123895 A CN 201010123895A CN 101788391 A CN101788391 A CN 101788391A
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- 238000010586 diagram Methods 0.000 description 6
- 230000005284 excitation Effects 0.000 description 5
- 238000009661 fatigue test Methods 0.000 description 5
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Abstract
The invention provides a fatigue and vibration experiment module, which comprises two vibration units, a fatigue unit and a bearing platform; the two vibration units are arranged on the bearing platform in a sliding way; and the fatigue unit is fixedly arranged on the bearing platform and is positioned between the two vibration units. The fatigue and vibration experiment module fulfils the aim that one module has vibration experiment function and fatigue experiment function, and also has the characteristics of low building and investment cost and small occupied area.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a fatigue and vibration experiment module.
Background
With the rapid development of 'heavy load and rapid transportation' of railway freight in China, the load and the operation speed of railway vehicles are continuously improved, and the operating condition of a line puts higher requirements on the performance of the railway vehicles. In order to improve the design level of the railway vehicle and ensure the safety of the railway vehicle operation, the reliability experiment in the research and development of the heavy-load and quick railway vehicle is very important. The fatigue test and the vibration test of the parts of the railway vehicle are main components of the reliability test of the whole vehicle.
In the prior art, the fatigue test and the vibration test are completed by the independent fatigue test table and the independent vibration test table, so that the defects of high construction investment cost and large occupied area of the two test tables exist. Moreover, the existing vibration experiment table can only perform experiments on a two-axis bogie, and cannot handle a three-axis bogie.
Disclosure of Invention
The invention provides a fatigue and vibration experiment module, which is used for solving the defects of higher construction investment cost and larger occupied area of two experiment tables because a fatigue experiment and a vibration experiment are completed by a single fatigue experiment table and a single vibration experiment table in the prior art, so that the purposes of performing both the vibration experiment and the fatigue experiment by adopting one module can be realized, and the fatigue and vibration experiment module has the characteristics of low construction investment cost and small occupied area.
The invention provides a fatigue and vibration experiment module which is characterized by comprising two vibration units, a fatigue unit and a supporting platform;
the two vibration units are arranged on the supporting platform in a sliding manner;
the fatigue unit is fixedly arranged on the supporting platform and is positioned between the two vibration units.
The vibration unit comprises a vibration beam, a first transverse actuator structure and two first vertical actuators;
one end of the first vertical actuator is hinged to the lower part of the vibrating beam, the other end of the first vertical actuator is hinged to a first support, and the first support is arranged on the supporting platform in a sliding mode;
first transverse actuator structure with the axial of foundatin base is mutually perpendicular, first transverse actuator structure includes first transverse actuator and head rod, the one end of head rod articulate in first transverse actuator's one end, the other end of head rod articulate in vibrating beam's lateral part, just first transverse actuator's the other end is fixed to be set up on the second support, the second support is fixed to be set up on the lateral wall of foundatin base, whole fatigue and vibration experiment module are placed to the foundatin base.
The top of the vibrating beam is provided with an adjusting track, and the track interval of the adjusting track is adjusted according to the wheel interval.
The vibration unit further comprises four rocking rods parallel to the axial direction of the foundation base, one ends of the four rocking rods are hinged to the side portion of the vibration beam respectively, the other end of each rocking rod is hinged to a fixing support respectively, and the fixing supports are vertically arranged on the supporting platform and distributed on two sides of the fatigue and vibration modules.
The fatigue unit comprises a simulation swing bolster, a second transverse actuator structure, two second vertical actuators and two longitudinal actuator structures;
one end of the second vertical actuator is hinged to the lower part of the simulation swing bolster, the other end of the second vertical actuator is hinged to a third support, and the third support is fixedly arranged on the supporting platform;
the second transverse actuator structure is vertical to the axial direction of the foundation base, the second transverse actuator structure comprises a second transverse actuator and a second connecting rod, one end of the second connecting rod is hinged to one end of the second transverse actuator, the other end of the second connecting rod is hinged to the side portion of the simulation swing bolster, the other end of the second transverse actuator is fixedly arranged on a fourth support, the fourth support is fixedly arranged on the side wall of the foundation base, and the whole fatigue and vibration experiment module is placed on the foundation base;
the vertical actuator structure with the axial of foundatin base parallels, the vertical actuator structure includes vertical actuator and third connecting rod, the one end of third connecting rod articulate in the one end of vertical actuator, the other end of third connecting rod articulate in the lateral part of simulation bolster, just the other end of vertical actuator is connected on the fixed bolster, the fixed bolster set up perpendicularly in on the supporting platform, and distribute in fatigue and vibration module's both sides.
The top of the simulation swing bolster is provided with a lower center plate and two lower side bearings, and the two lower side bearings are slidably arranged at the top of the simulation swing bolster and positioned at two sides of the lower center plate.
Furthermore, the fatigue unit further comprises four air spring supporters, the four air spring supporters are symmetrically distributed on two sides of the simulation swing bolster, one end of each air spring supporter is hinged to the simulation swing bolster, and the other end of each air spring supporter is fixedly arranged on the supporting platform.
According to the fatigue and vibration experiment module, the two vibration units are slidably arranged on the supporting platform, and the fatigue unit is fixedly arranged on the supporting platform and is positioned between the two vibration units, so that the defects that the two experiment tables are high in construction investment cost and large in occupied area due to the fact that the fatigue experiment and the vibration experiment are completed by the independent fatigue experiment table and the independent vibration experiment table in the prior art are overcome, the purpose that one module has the vibration experiment function and the fatigue experiment function is achieved, and meanwhile, the fatigue and vibration experiment module has the advantages of being low in construction investment cost and small in occupied area.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings needed to be used in the description of the embodiments or the prior art, and obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a fatigue and vibration testing module according to the present invention;
FIG. 2 is a schematic structural diagram of a vibration unit in the fatigue and vibration testing module according to the present invention;
FIG. 3 is a schematic structural diagram of a fatigue unit in the fatigue and vibration testing module according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The fatigue and vibration experiment module can be used for carrying out fatigue vibration experiments on a two-axle bogie and a three-axle bogie of a railway vehicle, or can be used for simultaneously carrying out vertical, transverse and longitudinal loading on one end of a tested vehicle body during vehicle body fatigue experiments.
Fig. 1 is a schematic structural diagram of a fatigue and vibration testing module according to the present invention. As shown in fig. 1, a fatigue and vibration module is disposed on a supporting platform 101, and the supporting platform 101 is fixed on a base.
Fig. 2 is a schematic structural diagram of a vibration unit in the fatigue and vibration testing module according to the present invention, and fig. 3 is a schematic structural diagram of a fatigue unit in the fatigue and vibration testing module according to the present invention. The fatigue and vibration experiment module of the embodiment comprises two vibration units and a fatigue unit, wherein the supporting platform 101 is provided with a fixed support 106, and the fixed support 106 is perpendicular to the supporting platform 101 and is distributed on two sides of the two vibration units; wherein,
for clarity, fig. 2 only illustrates the vibration unit of the fatigue and vibration module of the present embodiment, and the fatigue unit is removed from the fatigue and vibration module. The vibrating unit comprises a vibrating beam 103, a first transverse actuator structure 104 and two first vertical actuators 105; wherein,
the top of the vibrating beam 103 is provided with an adjusting track 107; one end of each first vertical actuator 105 is hinged to the lower part of the vibrating beam 103, the other end is hinged to a first support 108, the first support 108 is slidably arranged on the supporting platform 101, moreover, a T-shaped groove is axially arranged on the upper surface of the supporting platform 101, and a bolt through hole is arranged on the lower surface;
the first lateral actuator structure 104 is perpendicular to the axial direction of the base 112, and the first lateral actuator structure 104 includes a first lateral actuator 109 and a first connecting rod 110, wherein one end of the first connecting rod 110 is hinged to one end of the first lateral actuator 109, the other end of the first connecting rod 110 is hinged to the side of the vibrating beam 103, the other end of the first lateral actuator 109 is fixedly arranged on a second support 111, the second support 111 is fixedly arranged on the side wall of the base 112 for placing the whole fatigue and vibration testing module, and the second support 111 supports the first lateral actuator 109.
Further, the vibration unit of the present embodiment further includes four rocking bars 113 parallel to the axial direction of the base 112 to support the vibration beam 103, and one end of each rocking bar 113 is hinged to a side portion of the vibration beam 103 and the other end is hinged to the fixing bracket 106.
Since the fatigue unit is located between the two vibration units, for the sake of clarity and illustration, in fig. 3, the two vibration units are removed from the whole fatigue and vibration module, and only the fatigue unit of the fatigue and vibration module of this embodiment is illustrated. Specifically, the fatigue unit includes a simulated bolster 114, a second lateral actuator structure 115, two second vertical actuators 116, and two longitudinal actuator structures 117, wherein,
a lower center plate 118 and two lower side bearings 119 are arranged at the top of the simulation swing bolster 114, the two lower side bearings 119 are slidably arranged at the top of the simulation swing bolster 114, and the two lower side bearings 119 are positioned at two sides of the lower center plate 118; one end of each second vertical actuator 116 is hinged to the lower part of the simulated bolster 114, and the other end is hinged to a third support 120, and the third support 120 is fixedly arranged on the supporting platform 101;
the second lateral actuator structure 115 is perpendicular to the axial direction of the base 112, and the second lateral actuator structure 115 comprises a second vertical actuator 121 and a second connecting rod 122, wherein one end of the second connecting rod 122 is hinged to one end of the second lateral actuator 121, the other end of the second connecting rod 122 is hinged to the side of the simulated bolster 114, the other end of the second lateral actuator 121 is fixedly arranged on a fourth support 123, and the fourth support 123 is fixedly arranged on the side wall of the base 112;
each longitudinal actuator structure 117 is parallel to the axial direction of the base 112, and each longitudinal actuator structure 117 comprises a longitudinal actuator 124 and a third connecting rod 125, one end of the third connecting rod 125 is hinged to one end of the longitudinal actuator 124, the other end of the third connecting rod 125 is hinged to the side of the dummy bolster 114, and the other end of the longitudinal actuator 124 is connected to the fixed bracket 106.
Further, the fatigue unit of the present embodiment further includes four air spring supporters 126, the four air spring supporters 126 are symmetrically distributed on two sides of the simulated bolster 114, specifically, two of the air spring supporters 126 may be on the same side as the two longitudinal actuator structures 117, and the other two air spring supporters 126 are disposed on the symmetrical side of the simulated bolster 114; and one end of each air spring supporter 126 is hinged to the dummy bolster 114 and the other end is fixedly disposed on the support platform 101.
In practical application, the process of performing a vibration experiment on a single two-axle bogie by using the fatigue and vibration experiment module of the embodiment comprises the following steps:
adjusting the distance between the two vibration units by sliding and fixing the first support 108 on the support platform 101 according to the fixed wheelbase of the two-axle bogie; meanwhile, the track pitch of the adjusting track 107 is adjusted according to the wheel pitch of the two-axis bogie, so that the two-axis bogie is placed on a fatigue and vibration experiment module with various pitches adjusted through the contact of the front and rear groups of wheels with the adjusting track 107; at this time, the first lateral actuator 109 included in the first lateral actuator structure 104 starts to excite the vibration and is transmitted to the vibration beam 103 through the first connecting rod 110, and the first vertical actuator 105 also starts to excite the vibration and drives the vibration beam 103 to vibrate, thereby performing a vibration test on the two-axle bogie.
Furthermore, if two fatigue and vibration experiment modules are utilized, the vibration experiment can be carried out on the whole vehicle to be measured with the two-axis bogie, and the distance between the two fatigue and vibration experiment modules can be adjusted according to the vehicle distance of the whole vehicle to be measured with the two-axis bogie.
When the tested vehicle body is subjected to a fatigue test, the fatigue and vibration test module can simultaneously carry out vertical, transverse and longitudinal loading on the tested vehicle body, wherein the tested vehicle body is a tested vehicle without a bogie. In the embodiment, the two lower center plates of the fatigue units in the two fatigue and vibration experiment modules respectively support the two upper center plates of the tested vehicle body so as to perform fatigue experiments on the tested vehicle body. The specific process is as follows:
adjusting the distance between the two fatigue and vibration experiment modules, namely the distance between the two fatigue units according to the vehicle distance of the tested vehicle body; meanwhile, the distance between two lower side bearings 119 on the simulation bolster 114 is adjusted according to the distance between the upper side bearings of the tested car body, and then the tested car body can be placed on the fatigue and vibration experiment module with the adjusted distance in a mode that the upper center plate of the tested car body is matched with the lower center plate 118 of the simulation bolster 114; at this time, the second lateral actuator 121 included in the second lateral actuator structure 115 starts to vibrate and is transmitted to the simulated bolster 114 through the second connecting rod 122, the vibration of the longitudinal actuator 124 included in the longitudinal actuator structure 117 is transmitted to the simulated bolster 114 through the third connecting rod 125, and the second vertical actuator 116 simultaneously starts to vibrate and drives the simulated bolster 114 to vibrate, so that the fatigue test is performed on the vehicle body to be tested.
Further, the process of performing the vibration test on the single three-axle bogie by using the fatigue and vibration test module of the embodiment is as follows:
the adjustment of the distances between the fatigue and vibration test modules according to the fixed wheelbase and the wheel distance of the three-axle bogie is the same as the adjustment process of the two-axle bogie before the two-axle bogie is arranged on the adjustment track 107, and the details are not repeated here.
After the adjustment of the distances of the fatigue and vibration experiment modules is completed, the front wheel set and the rear wheel set of the three-axle bogie are in contact with the adjusting track 107 and are placed on the fatigue and vibration experiment modules with the adjusted distances, and the fatigue units can support the middle wheel set of the three-axle bogie; at this time, for the vibration unit, the first lateral actuator 109 included in the first lateral actuator structure 104 starts to excite vibration and is transmitted to the vibration beam 103 through the first connecting rod 110, and the first vertical actuator 105 also starts to excite vibration and drives the vibration beam 103 to vibrate, i.e., applies vibration to the front wheel pair and the rear wheel pair of the three-axle bogie; meanwhile, for the fatigue unit, the second lateral actuator 121 included in the second lateral actuator structure 115 starts to vibrate and is transmitted to the simulated bolster 114 through the second connecting rod 122, and the second vertical actuator 116 also starts to vibrate and drives the simulated bolster 114 to vibrate so as to apply vibration to the middle wheel pair, thereby realizing a vibration experiment on the three-axle bogie, but the longitudinal actuator 124 included in the longitudinal actuator structure 117 does not generate vibration in the process, and only plays a role of supporting the simulated bolster 114 through the third connecting rod 125.
Furthermore, if two fatigue and vibration experiment modules are utilized, the vibration experiment can be carried out on the whole vehicle to be measured with the three-axis bogie, and the distance between the two fatigue and vibration experiment modules can be adjusted according to the vehicle distance of the whole vehicle to be measured with the three-axis bogie.
In summary, one or two fatigue and vibration experiment modules of this embodiment may also be used to apply vertical, horizontal, and longitudinal loading to other objects, specifically, the object may be first fixed on two vibration units and/or fatigue units of each fatigue and vibration experiment module; for the vibrating means, the excitation of the first lateral actuator 109 included in the first lateral actuator structure 104 may be transmitted to the vibrating beam 103 by the first connecting rod 110, and the excitation of the first vertical actuator 105 may be transmitted to the vibrating beam 103 to apply vibration to the object by the vibrating means; meanwhile, for the fatigue unit, the excitation of the second lateral actuator 121 included in the second lateral actuator structure 115 may be transmitted to the dummy bolster 114 via the second connection rod 122, the excitation of the second vertical actuator 116 may be transmitted to the dummy bolster 114, and the excitation of the longitudinal actuator 124 included in the longitudinal actuator structure 117 may be transmitted to the dummy bolster 114 via the third connection rod 125, so that the fatigue unit may apply vibration to the object; thereby realizing the purpose of applying vertical, transverse and longitudinal loading to the object.
The fatigue and vibration experiment module of this embodiment, locate on the supporting platform through two vibration unit slips, the fixed structure that sets up on the supporting platform and lie in between two vibration units of fatigue unit, solved among the prior art because fatigue experiment and vibration experiment are accomplished by solitary fatigue experiment platform and vibration experiment platform, consequently, there are two experiment platform construction investment cost higher, the great defect of area, can carry out the vibration experiment to diaxon bogie and triaxial bogie respectively, perhaps carry out the fatigue experiment to the automobile body of being surveyed, a module has been realized and has the purpose of vibration experiment function and fatigue experiment function concurrently, this fatigue and vibration experiment module still has the characteristics that construction investment cost is low and area is little simultaneously.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A fatigue and vibration experiment module is characterized by comprising two vibration units, a fatigue unit and a supporting platform;
the two vibration units are arranged on the supporting platform in a sliding manner;
the fatigue unit is fixedly arranged on the supporting platform and is positioned between the two vibration units.
2. The fatigue and vibration testing module of claim 1, wherein the vibration unit comprises a vibration beam, a first lateral actuator structure and two first vertical actuators;
one end of the first vertical actuator is hinged to the lower part of the vibrating beam, the other end of the first vertical actuator is hinged to a first support, and the first support is arranged on the supporting platform in a sliding mode;
first transverse actuator structure with the axial of foundatin base is mutually perpendicular, first transverse actuator structure includes first transverse actuator and head rod, the one end of head rod articulate in first transverse actuator's one end, the other end of head rod articulate in vibrating beam's lateral part, just first transverse actuator's the other end is fixed to be set up on the second support, the second support is fixed to be set up on the lateral wall of foundatin base, whole fatigue and vibration experiment module are placed to the foundatin base.
3. The fatigue and vibration experiment module according to claim 2, wherein the top of the vibration beam is provided with an adjustment track, and the track pitch of the adjustment track is adjusted according to the wheel pitch.
4. The fatigue and vibration experiment module according to claim 2, wherein the vibration unit further comprises four rocking bars parallel to the axial direction of the base, one ends of the four rocking bars are respectively hinged to the side portions of the vibration beam, the other end of each rocking bar is respectively hinged to a fixed support, and the fixed supports are vertically arranged on the supporting platform and distributed on two sides of the fatigue and vibration module.
5. The fatigue and vibration testing module of claim 1, wherein the fatigue unit comprises a simulated bolster, a second lateral actuator structure, two second vertical actuators, and two longitudinal actuator structures;
one end of the second vertical actuator is hinged to the lower part of the simulation swing bolster, the other end of the second vertical actuator is hinged to a third support, and the third support is fixedly arranged on the supporting platform;
the second transverse actuator structure is vertical to the axial direction of the foundation base, the second transverse actuator structure comprises a second transverse actuator and a second connecting rod, one end of the second connecting rod is hinged to one end of the second transverse actuator, the other end of the second connecting rod is hinged to the side portion of the simulation swing bolster, the other end of the second transverse actuator is fixedly arranged on a fourth support, the fourth support is fixedly arranged on the side wall of the foundation base, and the whole fatigue and vibration experiment module is placed on the foundation base;
the vertical actuator structure with the axial of foundatin base parallels, the vertical actuator structure includes vertical actuator and third connecting rod, the one end of third connecting rod articulate in the one end of vertical actuator, the other end of third connecting rod articulate in the lateral part of simulation bolster, just the other end of vertical actuator is connected on the fixed bolster, the fixed bolster set up perpendicularly in on the supporting platform, and distribute in fatigue and vibration module's both sides.
6. The fatigue and vibration testing module according to claim 5, wherein a lower center plate and two lower side bearings are arranged on the top of the simulation swing bolster, and the two lower side bearings are slidably arranged on the top of the simulation swing bolster and are positioned on two sides of the lower center plate.
7. The fatigue and vibration experiment module according to claim 5, wherein the fatigue unit further comprises four air spring supporters symmetrically distributed on both sides of the simulated bolster, and one end of each air spring supporter is hinged to the simulated bolster, and the other end is fixedly arranged on the supporting platform.
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| CN201010123895XA CN101788391B (en) | 2010-03-11 | 2010-03-11 | Fatigue and vibration experiment module |
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| CN102628782A (en) * | 2012-04-17 | 2012-08-08 | 西南交通大学 | Simulation fatigue testing device for suspension motor suspension hanging plate spring of motor |
| CN106769554A (en) * | 2016-11-25 | 2017-05-31 | 中车齐齐哈尔车辆有限公司 | Elastic side bearing fatigue experimental device and method |
| CN108168917A (en) * | 2017-11-10 | 2018-06-15 | 中车唐山机车车辆有限公司 | For testing the loading device of bogie frame bearing capacity and test system |
| CN108827666A (en) * | 2018-06-27 | 2018-11-16 | 中车眉山车辆有限公司 | A kind of truck bolster for railway wagon fatigue test loading device |
| WO2019019300A1 (en) * | 2017-07-28 | 2019-01-31 | 中车南京浦镇车辆有限公司 | Vibration impact test method for permanent magnetic direct-driving motor |
| CN109341998A (en) * | 2018-11-21 | 2019-02-15 | 苏州东菱振动试验仪器有限公司 | A kind of decoupled components and synchronous vibration experimental rig |
| CN109720601A (en) * | 2019-01-19 | 2019-05-07 | 北京工业大学 | A kind of aircraft full size structure part multiaxle fatigue experimental device |
| CN110231231A (en) * | 2019-06-28 | 2019-09-13 | 东北大学 | The vibration fatigue test device and its installation method of metal material axial direction varying stress ratio |
| CN112098116A (en) * | 2020-08-14 | 2020-12-18 | 西南交通大学 | Maglev train vibration test bed |
| CN112345189A (en) * | 2020-10-26 | 2021-02-09 | 清华大学 | Vibration simulation experiment table and control method thereof |
| CN113495236A (en) * | 2020-04-07 | 2021-10-12 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Superconducting magnet vibration test system with background magnetic field |
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| CN102628782B (en) * | 2012-04-17 | 2014-06-18 | 西南交通大学 | Simulation fatigue testing device for suspension motor suspension hanging plate spring of motor |
| CN102628782A (en) * | 2012-04-17 | 2012-08-08 | 西南交通大学 | Simulation fatigue testing device for suspension motor suspension hanging plate spring of motor |
| CN106769554A (en) * | 2016-11-25 | 2017-05-31 | 中车齐齐哈尔车辆有限公司 | Elastic side bearing fatigue experimental device and method |
| WO2019019300A1 (en) * | 2017-07-28 | 2019-01-31 | 中车南京浦镇车辆有限公司 | Vibration impact test method for permanent magnetic direct-driving motor |
| CN108168917A (en) * | 2017-11-10 | 2018-06-15 | 中车唐山机车车辆有限公司 | For testing the loading device of bogie frame bearing capacity and test system |
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| CN108827666A (en) * | 2018-06-27 | 2018-11-16 | 中车眉山车辆有限公司 | A kind of truck bolster for railway wagon fatigue test loading device |
| CN109341998A (en) * | 2018-11-21 | 2019-02-15 | 苏州东菱振动试验仪器有限公司 | A kind of decoupled components and synchronous vibration experimental rig |
| CN109720601A (en) * | 2019-01-19 | 2019-05-07 | 北京工业大学 | A kind of aircraft full size structure part multiaxle fatigue experimental device |
| CN110231231A (en) * | 2019-06-28 | 2019-09-13 | 东北大学 | The vibration fatigue test device and its installation method of metal material axial direction varying stress ratio |
| CN110231231B (en) * | 2019-06-28 | 2021-07-09 | 东北大学 | Vibration fatigue test device and installation method of metal material axial variable stress ratio |
| CN113495236A (en) * | 2020-04-07 | 2021-10-12 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Superconducting magnet vibration test system with background magnetic field |
| CN113495236B (en) * | 2020-04-07 | 2024-06-11 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Superconducting magnet vibration test system with background magnetic field |
| CN112098116A (en) * | 2020-08-14 | 2020-12-18 | 西南交通大学 | Maglev train vibration test bed |
| CN112345189A (en) * | 2020-10-26 | 2021-02-09 | 清华大学 | Vibration simulation experiment table and control method thereof |
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| CN101788391B (en) | 2012-02-08 |
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