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Optimal design method of performance-oriented compound damping interval magnetic flux variable damping unit

A technology of magnetorheological damping and compound 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: 2015-11-11
ZHEJIANG UNIV
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  • Abstract
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  • Application Information

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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 compound damping interval magnetic flux variable damping unit
  • Optimal design method of performance-oriented compound damping interval magnetic flux variable damping unit
  • Optimal design method of performance-oriented compound damping interval magnetic flux variable 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 an optimal design method of a performance-oriented compound damping interval magnetic flux variable damping unit. The optimal design method comprises the following steps: obtaining requirements on performance by a user and required data; determining an external design parameter and an internal design parameter to be optimized; carrying out dimensionless processing, and determining a specific value or range; establishing a calculation model of magnetic field intensity and the like of a damping unit; establishing a performance model of the damping unit; establishing and operating an optimal function for a specific damping unit draw ratio range to obtain a corresponding optimal parameter and optimized performance; and finally, repeating the above step in the given draw ratio range, drawing a corresponding optimal parameter curve and an optimized performance sensitiveness curve, and flexibly determining an external design parameter on the optimized performance sensitiveness curve according to an application environment and the like. The method provides a precise, reliable and clear dimensionless parameter influence curve for the performance analysis of the magnetic flux variable damping, and can realize the optimal design of the magnetic flux variable damping.

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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IPC IPC(8): G06F17/50
Inventor 朱笑丛司晨曹剑
Owner ZHEJIANG UNIV