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Magnetorheological fluid magnetic field loading test device

A magnetorheological fluid and testing device technology, applied in the direction of measuring devices, measuring magnetic variables, instruments, etc., can solve the problems of inability to accurately measure the magnetic field value of magnetorheological fluid, no quantitative analysis, etc., to shorten the effect time, vibration Small size and low energy consumption

Inactive Publication Date: 2017-05-31
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the application of magnetorheological fluid in the field of transmission is all qualitative analysis, that is, the size of the transmission torque increases with the increase of magnetic induction intensity, and there is no quantitative analysis, so the relevant technology cannot accurately measure the magnetic field value of magnetorheological fluid

Method used

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  • Magnetorheological fluid magnetic field loading test device
  • Magnetorheological fluid magnetic field loading test device
  • Magnetorheological fluid magnetic field loading test device

Examples

Experimental program
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Embodiment

[0029] Such as figure 1 As shown, a magnetorheological fluid magnetic field loading device includes a first hexagon head bolt 1, a lower casing 2, an outer induction block 3, an inner induction block 4, a magnetorheological fluid 5, a cylindrical coil 6, and an enameled wire 7 , Upper end cover 8 and second hex head bolt 9.

[0030] Such as figure 2 As shown, one side of the lower housing 2 is provided with a first annular locking groove 21 to match the second annular locking groove 81 on the upper end cover 8, so that the cylindrical coil 6 is stably clamped inside the cavity, and the lower housing 2 Through holes are provided on the upper end cap and the upper end cover 8, so that the enameled wire 7 wound on the cylindrical coil 6 and the wire connected to the external current source are passed from the inside to the outside.

[0031] Such as image 3 and 4 As shown, the inner induction block 4 is embedded in the outer induction block 3, and the two together form an in...

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Abstract

The invention relates to a magnetorheological fluid magnetic field loading test device for testing magnetic field values under different excitation current. The device has a disc structure, and comprises a lower shell and an upper end cover in mutual fixed connection, wherein the center of the upper end cover is provided with a round sensing block hole, and a sensing block is arranged; the lower shell, the upper end cover and the sensing block form a cavity; a tubular coil is arranged at the cavity and the inner wall of the lower shell; the groove of the tubular coil is wound with an enamel wire connected with an external power supply via a wire, and the rest part inside the cavity is filled with the magnetorheological fluid. Compared with the prior art, the device of the invention has the advantages of simple structure, stable loading, small size, low energy consumption, fast response and the like.

Description

technical field [0001] The invention relates to a magnetorheological fluid testing device, in particular to a magnetorheological fluid magnetic field loading testing device. Background technique [0002] Magneto-rheological fluid is a kind of smart material, whose rheological properties can change dramatically under the action of an external magnetic field, and this change is continuous, reversible and controllable. When there is no external magnetic field, it shows the characteristics of Newtonian fluid with good fluidity and low viscosity; when there is an external magnetic field, its apparent viscosity shows the characteristics of Bingham fluid with low fluidity and high viscosity within milliseconds. The magnetorheological fluid loading device developed based on this characteristic has simple structure, stable loading, small size, low energy consumption, and fast response, and has broad application prospects in the engineering field. [0003] At present, the application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/07
CPCG01R33/07
Inventor 陆雯罗一平杨斌刘文涛任洪娟
Owner SHANGHAI UNIV OF ENG SCI
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