阀式磁流变阻尼器中磁流变液流动状态多物理场模拟

赵鹏慧; ZHAO Penghui; 曾帆; ZENG Fan; 马宁; MA Ning; 王奇; WANG Qi; 董旭峰; DONG Xufeng

doi:10.48014/pcms.20231118001

阀式磁流变阻尼器中磁流变液流动状态多物理场模拟

Multi-Physical Field Simulation of Magnetorheological Fluid Flow State in Valve Magnetorheological Damper

中国材料科学进展 2024年第3卷第1期页码[12-19] 下载全文[9.6MB] [HTML]

摘要

磁流变液 (Magnetorheological fluid, MRF) 作为一种磁场响应型的智能流体, 在阻尼减振领域受到广泛关注。MRF的流动状态对阻尼器中的振动控制起到关键作用。本文通过多物理场模拟对MRF在阀式阻尼器中的流动行为进行了研究, 目的在于全面的了解磁场如何改变沿磁流变阻尼器通道内MRF的速度分布和压降。通过创建通电线圈实现磁场的产生, 随后通过调整电流改变磁通密度。磁场计算表明, 在阻尼器流道最窄处, 磁场几乎垂直于MRF流动方向。接着, 基于流体流动、电场以及磁场间的多物理场耦合计算, 计算分析了不同磁场下MRF在流道中的流速变化以及压力等特性。结果表明, 在MRF流动方向垂直于磁场方向的流道最窄处, MRF的流动使其受到体积力, 进而使流速出现降低的趋势, 在流道左右两侧产生较大压力差。此外, MRF的流速随磁场的增大而减小, 磁场强度从0. 5T增加到1. 5T时, MRF流体在流道最窄处的流速降低大约0. 18m/s。

Abstract

Magnetorheological fluid (MRF) is a kind of magnetic field responsive intelligent fluid, which is widely concerned in the field of damping and vibration reduction. The flow state of MRF plays a key role in vibration control in dampers. In this work, the flow behavior. of magnetorheological fluid (MRF) in a valve damper is studied through multi-physical field simulations. The objective is to comprehensively comprehend the influence of the magnetic field on the velocity distribution and pressure drop of the MRF within the damper channel. The magnetic field is generated by creating an electrified coil, and the magnetic flux density is subsequently changed by adjusting the current. The magnetic field calculation shows that the magnetic field is almost perpendicular to the MRF flow direction at the narrowest part of the damper channel. Next, based on the coupling calculation of multiple physical fields between fluid flow, electric field, and magnetic field, the flow velocity and pressure characteristics of MRF in the flow channel were calculated and analyzed. The results indicate that at the slit where the MRF flow direction is perpendicular to the magnetic field direction, the volume force acting on the MRF reduces its flow velocity, resulting in a significant pressure difference between the left and right sides of the flow channel. Additionally, the flow rate of MRF exhibits a decrease as the magnetic field strength increases. When the magnetic field strength increases from 0. 5T to 1. 5T, the flow rate of MRF fluid at the narrowest part of the flow channel decreases by about 0. 18m/s.

DOI

10.48014/pcms.20231118001

文章类型

研究性论文

收稿日期

2023-11-18

接收日期

2023-12-17

出版日期

2024-03-28

关键词

阻尼器, 磁流变液, 流动状态, 多物理场

Keywords

Damper, magnetorheological fluid, flow state, multi-physical field

作者

赵鹏慧¹, 曾帆², 马宁³, 王奇⁴, 董旭峰^1,*

Author

ZHAO Penghui¹, ZENG Fan², MA Ning³, WANG Qi⁴, DONG Xufeng^1,*

所在单位

1. 大连理工大学材料科学与工程学院, 大连 116024
2. 海军潜艇学院, 青岛 266199
3. 大连理工大学土木工程学院, 大连 116024
4. 海南大学土木建筑工程学院, 海口 570228

Company

1. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
2. Naval Submarine Academy, Qingdao 266199, China
3. School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
4. School of Civil Engineering, Hainan University, Haikou 570228, China

浏览量

642

下载量

358

基金项目

本项研究得到了国家自然科学基金项目(资助号52178459和52008016)的资助。

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引用本文

赵鹏慧, 曾帆, 马宁, 等. 阀式磁流变阻尼器中磁流变液流动状态多物理场模拟[J]. 中国材料科学进展, 2024, 3(1): 12-19.

Citation

ZHAO Penghui, ZENG Fan, MA Ning, et al. Multi-physical field simulation of magnetorheological fluid flow state in valve magnetorheological damper[J]. Progress in Chinese Materials Sciences, 2024, 3(1): 12-19.