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Optimal design method of performance-oriented composite damping gap magnetorheological damping unit

A technology of magnetorheological damping and composite damping, which is applied in computing, special data processing applications, instruments, etc., and can solve problems such as the magnetic saturation effect of the magnetorheological damping channel that is not considered

Active Publication Date: 2018-04-10
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method does not take into account the magnetic saturation effect in the magnetorheological damping flow channel and the possible interference between electromagnetic

Method used

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  • Optimal design method of performance-oriented composite damping gap magnetorheological damping unit
  • Optimal design method of performance-oriented composite damping gap magnetorheological damping unit
  • Optimal design method of performance-oriented composite damping gap magnetorheological damping unit

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example 1

[0045] Example 1, this embodiment selects as figure 2 and 3 For the magnetorheological damping unit shown, the model of the magnetorheological fluid is MRF122EG from Lord Company, the magnetic material is pure electric iron DT4, the maximum external excitation current I=1A, and the maximum flow Q=8.4×10 -4 m 3 / s; due to the limited external working space, the length-to-diameter ratio of the damping unit is required Within the range of 1.0 to 2.8, the magnetorheological damping unit is optimized according to the above information, so that the performance meets the following requirements: Active pressure drop demand ΔP AR,τref =1MPa, passive pressure drop requirement ΔP AR,ηref =0.35MPa, dynamic adjustment coefficient requirement λ ref =10, response time requirement T inref =50ms, specifically including the following steps:

[0046] Step 1. Obtain the H-τ (magnetic field strength-shear yield stress) characteristics, B-H (magnetic induction strength-magnetic field streng...

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Abstract

The invention relates to a method for optimizing the design of a performance-oriented composite damping gap magneto-rheological damping unit. Process and determine the specific value or range, establish the calculation model of the magnetic field strength of the damping unit, establish the performance model of the damping unit, establish and run the optimization function for the specific length-to-diameter ratio of the damping unit, and obtain the corresponding optimized parameters and optimized performance , and finally within a given aspect ratio range, repeat the previous step to draw the corresponding optimization parameters and optimization performance sensitivity curve, and flexibly determine the external design parameters on the performance sensitivity curve according to the application environment; The performance analysis of the rheological damping unit provides accurate, reliable, and clear dimensionless parameter influence curves, which can realize the optimal design of the magnetorheological damping unit.

Description

technical field [0001] The invention relates to the field of parameter optimization design of magnetorheological fluid and hydraulic damping unit, and more particularly relates to a performance-oriented optimization design method of magnetorheological damping unit. Background technique [0002] The magnetorheological damping unit is a hydraulic control unit designed using the magnetorheological fluid effect. It is the core component of the magnetorheological valve and the magnetorheological damper. It can control the load on the magnetic current by changing the current in the excitation coil. Change the magnetic field in the fluid to change the damping characteristics of the fluid to achieve flow and pressure drop control. The magnetorheological damping unit with circular and disk-shaped liquid flow channels, due to its composite damping gap and the design of the magnetic ring, the shear area of ​​the magnetic field on the magnetorheological fluid increases, and the shearing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 朱笑丛司晨曹剑
Owner ZHEJIANG UNIV