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Elastomer dynamic response and vibration control test system under time varying load effect

A technology of dynamic response and vibration control, applied in vibration testing, using electrical devices, using electromagnetic means, etc., can solve problems such as beam damage, parameter resonance, and beam inability to work stably, so as to improve the technical level, improve precision, and reduce vibration Obvious effect

Inactive Publication Date: 2010-06-30
JIAXING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The excitation generated by the moving load causes the beam to vibrate, making the beam unable to work stably. When the resonant frequency of the excitation is close to the natural frequency of the beam structure, parametric resonance will occur, and even the beam will be damaged, resulting in a major accident

Method used

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  • Elastomer dynamic response and vibration control test system under time varying load effect
  • Elastomer dynamic response and vibration control test system under time varying load effect
  • Elastomer dynamic response and vibration control test system under time varying load effect

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Embodiment Construction

[0021] see figure 1 , an elastic body dynamic response and vibration control test system under time-varying loads of the present invention includes a test bench 1, a motion generation and control device 2, a piezoelectric sensor 3, an acceleration sensor 4, a displacement and speed sensor 5, and a multi-channel charge sensor Amplifier 6 , data collector 7 and display device 8 , multi-channel piezoelectric ceramic drive power supply 101 and piezoelectric actuator 102 .

[0022] see figure 2 , the platform 1 includes a workbench 11 , a lower plate 12 , a cantilever beam 13 , two guide rails 14 , two upper plates 15 , a mass 16 , a first screw 17 and a second screw 18 .

[0023] Both sides of the workbench 11 are respectively provided with first screw holes.

[0024] The lower plate 12 is fixed on the workbench 11 , a groove 121 is formed in the middle of the lower plate 12 so that both sides of the groove 121 form bosses 122 . A second screw hole is defined on the bottom wal...

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Abstract

The invention discloses an elastomer dynamic response and vibration control test system under time varying load effect, which comprises a test bed, a motion generating and controlling device, a piezoelectric sensor, a displacement and speed sensor, a multi-channel charge amplifier, a data collecting device, a display device, a multi-channel piezoelectric ceramic drive power supplier and a piezoelectric actuator; wherein the motion generating and controlling device leads a mass block to move on the cantilever beam of the test bed; the data collecting device collects data of the sensor and sends the data to the display device for displaying by a communication module, and the data collecting device outputs a controlling voltage to the multi-channel piezoelectric ceramic drive power supply after processing the collected data according to an instruction obtained by the display device; the multi-channel piezoelectric ceramic drive power supply controls the voltage for amplifying and applies the voltage to the piezoelectric actuator for suppressing beam vibration. The invention integrates controlling and data collecting into a whole, either the forced vibration or the free vibration can be quickly suppressed and damping effect is obvious.

Description

technical field [0001] The invention relates to a motion control and vibration test system, in particular to an elastic body dynamic response and vibration control test system under time-varying load. Background technique [0002] The analysis and research on the dynamic response and vibration control of elastic bodies under time-varying loads has always been a hot topic in structural dynamics. The factors that affect the dynamic response and vibration control of elastic bodies under time-varying loads include load factors, working environment and elastic body structure. parameters etc. The excitation generated by the moving load causes the beam to vibrate, making the beam unable to work stably. When the resonance frequency of the excitation is close to the natural frequency of the beam structure, parametric resonance will occur, and even the beam will be damaged, resulting in a major accident. Therefore, it is a very necessary technical problem to propose a dynamic respons...

Claims

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Application Information

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IPC IPC(8): G01M7/02G01B7/02G01B7/16G01P15/00
Inventor 胡红生钱苏翔王娟
Owner JIAXING UNIV
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