Dynamic performance testing device for magneto-rheological elastomer vibration isolator

Abstract

The invention discloses a dynamic performance testing device for a magneto-rheological elastomer vibration isolator. The device comprises a magneto-rheological elastomer vibration isolator, a force sensor, a laser displacement sensor, a fixed station, a connecting element, a sliding table, a vibration exciter, a signal generator, a power amplifier, a data collection card, a direct-current power supply, a bracket, sliding blocks and a guide rail, wherein the signal generator generates different excitation signals; after the excitation signals are amplified through the power amplifier, the vibration exciter is driven to horizontally vibrate to drive the sliding table to vibrate; the bottom of the magneto-rheological elastomer vibration isolator is installed on the sliding table and vibratesalong with the sliding table; the direct current power supply provides different currents for the vibration isolator; the upper part of the vibration isolator is connected with the bracket fixedly connected to the fixed station through the force sensor; the force sensor measures force applied to the upper part of the vibration isolator; the laser displacement sensor installed on the bracket measures the displacement of the bottom of the vibration isolator; and a measured force signal and a measured displacement signal are transmitted into the data collection card. By use of the device, the displacement-force characteristics of the vibration isolator under different excitations and currents can be measured.

Description

technical field [0001] The invention belongs to the field of vibration isolator performance testing, in particular to a dynamic performance testing device of a magneto-rheological elastomer vibration isolator. Background technique [0002] Magnetorheological elastomers have excellent magnetic field controllability and can be used as controlled components of semi-active vibration isolators to develop magnetorheological elastomer vibration isolators with vibration isolation properties. However, the control performance of MRE vibration isolators is uncertain, and the complex and changeable structure of MRE vibration isolators restricts the application of MRE vibration isolators. Therefore, it is necessary to design a set of MRE vibration isolator performance testing device to test the dynamic performance of MRE vibration isolators. [0003] At present, the performance test device of the magnetorheological elastomer vibration isolator designed can only test its frequency-shifti...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a dynamic performance test device for magnetorheological elastomer vibration isolators, which can comprehensively test the dynamic performance of magnetorheological elastomer vibration isolators, and solve the problem of existing magnetorheological elastomer vibration isolator tests. The device can only test the deficiency of frequency shifting characteristics

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