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Magnetorheological liquid damping type dynamic vibration absorber

A technology of dynamic shock absorber and magnetorheological fluid, which is applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., and can solve problems such as not being able to achieve the best design effect

Inactive Publication Date: 2007-10-31
TIANJIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this approach cannot achieve the best design effect whether it is for resonance control or high-frequency vibration isolation.

Method used

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  • Magnetorheological liquid damping type dynamic vibration absorber
  • Magnetorheological liquid damping type dynamic vibration absorber
  • Magnetorheological liquid damping type dynamic vibration absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] One side of the structural main body (7) is fixedly provided with a vibration absorber (9), and the structural main body (7) is provided with several sensors (6) layer by layer. The wall is fixedly connected, the whole of the support frame (8) is concave, and at least two guide rails (5) are arranged on the support frame (8), and the ends of the guide rails (5) are fixed to the side support walls of the support frame (8). connected.

[0074] A quality block (2) is arranged on the guide rail (5), one end of the lead screw (10) is connected to the output end of the motor (1), and the other end of the lead screw (10) passes through the mass block (2), and the drive motor ( 1) Drive the lead screw (10) to push the mass block (2) to reciprocate and translate along the guide rail (5).

[0075] At least two or more springs (4) are arranged around the leading screw (10) between the side support wall of the mass block (2) and the support frame (8), and the two ends of the sprin...

Embodiment 2

[0078] Sensor (6) collects the vibration frequency of structure main body (7), and sensor (6) is connected with main control computer through amplifier and A / D converter, and sensor (6) transmits vibration frequency to The main control computer, the A / D converter converts the vibration frequency collected by the sensor (6) into digital information and sends it to the main control computer, and the motor (1) is connected with the main control computer through the motor controller and the D / A converter , the main control computer sends instructions to the motor (1) through the D / A converter and the motor controller after comprehensive information processing according to the vibration frequency range of the structural body (7), and the motor (1) is converted through the motor controller and D / A The device transmits the operation information of the motor (1) to the main control computer, as shown in Fig. 1 and Fig. 2 .

Embodiment 3

[0080] The sensor (6) is connected with the amplifier, the amplifier is connected with the A / D converter, and the A / D converter is connected with the main control computer. The sensor (6) transmits the vibration frequency of the structural body to the amplifier, and the amplifier amplifies the vibration frequency collected by the sensor (6) and transmits it to the A / D converter, and the A / D converter converts the amplified vibration frequency into digital information and transmits it to the master computer. The main control computer is connected with the D / A converter, the D / A converter is connected with the motor controller, and the motor controller is connected with the motor; the main control computer sends instructions to the D / A converter after comprehensive information processing, The D / A converter converts the digital information of the instructions issued by the main control computer and transmits them to the motor controller, and the motor controller starts the motor ...

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Abstract

The invention discloses a magnetic-flow liquid-variable damping power vibration absorber. Wherein, one side of main body is fixed with a vibration absorber; the main body has several layered sensors; the support is fixed to the side wall of main body; the support is concave; the end of guide rail is fixed to the side support wall of support; the guide rail is mounted with weight block; one end of lead screw is connected to the output of motor; the driving motor drives the guide rail to push weight block move reciprocally along the guide rail; around the guide rail, between the weight block and the support, there are at least two springs and magnetic-flow liquid-variable damper; the twp ends of spring magnetic-flow liquid-variable damper are connected to the bottom plates of weight block and support. The invention has significant damping effect, flexible operation, wider application, wider adjusting range, lower power consumption, high response speed and simple structure, while the maximum vibration acceleration response amplitude can be reduced to 9.8% of former one.

Description

technical field [0001] The invention relates to a vibration damping device applied to the main structure of a building, the main structure of high-precision instrument processing equipment, the main structure of semiconductor chip manufacturing equipment, the main structure of nano-processing machines, and the main structure of mechanical manufacturing equipment, especially relates to a vibration damping device that can be used randomly Magneto-rheological fluid damping dynamic vibration absorber with wide frequency band for vibration control and vibration reduction, good low-frequency performance, adjustable control force frequency and damping parameters, and "best tuning". Background technique [0002] At present, although there are many types of shock absorbers at home and abroad, these shock absorbers cannot adjust the amplitude, frequency and damping coefficient of the shock absorbing force at the same time, and the adjustment range of the damping coefficient (or damping...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53F16F15/023
CPCF16F9/535F16F7/1017
Inventor 李连进
Owner TIANJIN UNIV OF COMMERCE
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