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A test device for indicating dynamometer characteristics of a magneto-rheological damper

A magneto-rheological damper and characteristic testing technology, which is applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve the problems of high cost of variable frequency speed regulation motors, unspecified motors, complex structures, etc., and achieve low cost , easy installation, simple processing and production

Inactive Publication Date: 2014-10-29
HUNAN NORMAL UNIVERSITY
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the rectangular frame in this traditional equal-width cam mechanism is a hollow polyhedron with a box-like structure. The structure is relatively complicated, and the processing requires high precision and is relatively inconvenient. It needs further improvement.
At the same time, the patent does not specify whether the motor used is a variable frequency speed regulation motor or an ordinary three-phase asynchronous motor
Other existing technologies for performance testing of magneto-rheological dampers often use variable-frequency speed-regulating motors to drive cams, but the cost of frequency-variable speed-regulating motors is relatively high, and their prices are generally 2 to 3 times the price of ordinary three-phase asynchronous motors of the same power

Method used

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  • A test device for indicating dynamometer characteristics of a magneto-rheological damper
  • A test device for indicating dynamometer characteristics of a magneto-rheological damper
  • A test device for indicating dynamometer characteristics of a magneto-rheological damper

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Embodiment Construction

[0018] figure 1 Shown is an eccentric wheel excitation mechanism capable of reciprocating linear motion disclosed in the Chinese invention patent CN101738329B mentioned in the background technology section above, that is, a traditional equal-width cam mechanism. figure 1 Middle eccentric wheel 27 rotates, drives follower-sliding shaft 28 to do reciprocating linear motion, and the upper and lower two walls of the rectangular frame inner frame on the sliding shaft 28 contact and tangent with the curve profile of eccentric wheel 27 all the time. The rectangular frame in this traditional equal-width cam mechanism is a hollow box-shaped polyhedron with a relatively complex structure. The surface processing of the upper and lower walls of the inner frame that contacts the contour of the eccentric wheel requires high precision and is relatively inconvenient.

[0019] Such as figure 2 , image 3 , Figure 4 , Figure 4 The shown magneto-rheological damper indicator performance te...

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Abstract

The invention discloses a device for testing the indicator characteristic of a magnetorheological damper. The device comprises a mechanical rack, a cam excitation unit, a magnetorheological damper power supply system and a sensor testing system. The testing device has a simple integral electromechanical structure, particularly a cam transmission mechanism is a combined integral flat-bottomed transmission mechanism, and compared with a rectangular frame structure in the traditional constant-breadth cam mechanism, the structure has the advantages that the device is convenient to assemble and disassemble and easy to process and manufacture; the cost of a variable frequency speed regulation system which is the common three-phase asynchronous motor is lower than that of a variable frequency speed regulation motor; and the device can test the indicator characteristic and speed characteristic of the magnetorheological damper, has stable and reliable working performance, and is simple and practical.

Description

technical field [0001] The invention relates to an electromechanical test device, in particular to a test device for the display performance characteristic of a magneto-rheological damper. Background technique [0002] Magneto-rheological damper is a semi-active damping device using intelligent controllable fluid-magneto-rheological fluid. Its damping force is regulated by its driving current. It is widely used in structural vibration control of automobiles, bridges, and buildings. field. One of the main contents of the magnetorheological damper test is the measurement of its indicator characteristic (also known as the resistance characteristic), that is, the magnetorheological damper performs relative simple harmonic motion at both ends under the specified stroke and test frequency, and its resistance varies with The changing nature of the displacement. The simple harmonic motion excitation methods in the measurement of dynamometer characteristics usually include electric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00
Inventor 金耀李仲阳
Owner HUNAN NORMAL UNIVERSITY
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