含位形权重的磁流变液孤立链流变剪应力模型

doi:10.12068/j.issn.1005-3026.2018.02.016

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (2): 226-231.DOI: 10.12068/j.issn.1005-3026.2018.02.016

含位形权重的磁流变液孤立链流变剪应力模型

马良^1,2，肖萍²，王任胜^1,3，修世超¹

(1. 东北大学机械工程与自动化学院，辽宁沈阳110819; 2. 新疆工程学院机械工程系，新疆乌鲁木齐830091; 3. 辽宁科技学院机械工程学院，辽宁本溪117004)

收稿日期:2016-09-12 修回日期:2016-09-12 出版日期:2018-02-15 发布日期:2018-02-09
通讯作者: 马良
作者简介:马良(1976-)，男，甘肃临洮人，东北大学博士研究生; 修世超(1958-)，男，辽宁凌源人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51375083)；沈阳市科学技术计划项目(F16-205-1-02)；辽宁省教育厅科学研究项目一般项目(L2015274).

An Isolated Chain Rheological Shear Stress Model with Distance Weighted Coefficients

MA Liang^1,2， XIAO Ping²， WANG Ren-sheng^1,3， XIU Shi-chao¹

1.School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819，China; 2.Department of Mechanical Engineering， Xinjiang Institute of Engineering， Urumqi 830091，China; 3.School of Mechanical Engineering， Liaoning Institute of Science and Technology， Benxi 117004， China.

Received:2016-09-12 Revised:2016-09-12 Online:2018-02-15 Published:2018-02-09
Contact: MA Liang
About author:-
Supported by:
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摘要/Abstract

摘要： 为降低采用标准孤立链理论模型计算高体积分数磁流变液流变剪应力时的计算误差，提出一种通过距离权重系数评价磁链间相互作用的流变模型.编写Monte Carlo仿真程序计算颗粒位置与磁矩方向矢量、同时输出与系统颗粒间距有关的距离权重系数.按标准和距离权重这两种链结构模型计算磁流变液剪切应力数值，并和4种磁流变液(30.58%~44.79%)的流变仪剪应力测试数据进行比较，结果显示，权重模型在磁场全范围内具有更高的计算精度，并且和流变试验实际结果基本符合，证实了磁链微观结构间的相互作用力是影响磁流变液流变特性的主要因素之一.

关键词: 磁流变液, 流变特性, 距离权重系数, 剪切屈服应力, 孤立链模型, 蒙特卡洛方法

Abstract: For reducing the error in calculating shear stress of high volume concentration magnetorheological fluids by applying standard isolated chain theoretical model， a new rheological model was proposed to evaluate interaction of magnetic chains by distance weighted coefficients. A Monte Carlo program was written for simulating position coordinates and direction of magnetic moment of carbonyl iron particles in magnetorheological fluids system， with two distance-related coefficients output. Comparing theoretical values of standard and distance weighted shear stress model with four magnetorheological fluids’ testing data that measured by rheometer， results indicated that distance model has higher computational accuracy at the whole experimental range of magnetic field than that using standard isolated chain-based one， and it generally aligned with rheological results， which proves interaction force between magnetic chains is one of impact factors that can significantly affect rheological characteristic of magnetorheological fluids.

Key words: magnetorheological fluid, rheological characteristic, distance weighted coefficient, shear yield stress, isolated chain model, Monte Carlo method

中图分类号:

TB303

马良，肖萍，王任胜，修世超. 含位形权重的磁流变液孤立链流变剪应力模型[J]. 东北大学学报:自然科学版, 2018, 39(2): 226-231.

MA Liang， XIAO Ping， WANG Ren-sheng， XIU Shi-chao. An Isolated Chain Rheological Shear Stress Model with Distance Weighted Coefficients[J]. Journal of Northeastern University Natural Science, 2018, 39(2): 226-231.

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含位形权重的磁流变液孤立链流变剪应力模型

An Isolated Chain Rheological Shear Stress Model with Distance Weighted Coefficients

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