热磁耦合作用下磁流变脂剪切稳定性及其机理

doi:10.16085/j.issn.1000-6613.2020-1918

化工进展 ›› 2021, Vol. 40 ›› Issue (8): 4428-4437.DOI: 10.16085/j.issn.1000-6613.2020-1918

热磁耦合作用下磁流变脂剪切稳定性及其机理

杨广鑫¹(), 潘家保¹^,²^,³(), 周陆俊¹, 高洪¹, 王晓雷²

^1.安徽工程大学机械工程学院，安徽芜湖 241000
^2.南京航空航天大学直升机传动技术国家重点实验室，江苏南京 210016
^3.汽车新技术安徽省工程技术研究中心，安徽芜湖 241000

收稿日期:2020-09-21 出版日期:2021-08-05 发布日期:2021-08-12
通讯作者: 潘家保
作者简介:杨广鑫（1997—），男，硕士研究生，研究方向为磁流变脂热流变行为。E-mail：79774732@qq.com。
基金资助:
国家自然科学基金(52005004);中国博士后科学基金(2019M661821);南京航空航天大学直升机传动技术重点实验室开放课题(HTL-O-20G09);安徽高校自然科学研究项目(KJ2018A0112)

Shear stability and mechanism of magnetorheological grease under thermo-magnetic coupling

YANG Guangxin¹(), PAN Jiabao¹^,²^,³(), ZHOU Lujun¹, GAO Hong¹, WANG Xiaolei²

^1.School of Mechanical Engineering, Anhui Polytechnic University, Wuhu 241000, Anhui, China
^2.National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics &;Astronautics, Nanjing 210016, Jiangsu, China
^3.Automobile New Technology Anhui Engineering Technology;Research Center, Wuhu 241000, Anhui, China

Received:2020-09-21 Online:2021-08-05 Published:2021-08-12
Contact: PAN Jiabao

摘要/Abstract

摘要：

磁流变器件内部介质均面临热磁耦合、频繁剪切等复杂工况，剪切稳定性是磁流变介质实现持久服役的重要指标。本文以实验室制备的磁流变脂为研究对象，基于流变学、磁学性能分析结果探究了热磁耦合作用下磁流变脂剪切稳定性变化规律及其机理。研究结果表明，温度和磁场强度发生变化时，磁流变脂流变性能也发生了较为显著的变化。触变性分析与连续剪切结果显示热磁耦合作用下磁流变脂总体保持着较好的剪切稳定性，基载液润滑脂皂纤维结构和磁链的交互作用将会对磁流变脂剪切稳定性产生影响。在较低温度、较弱磁场强度下，皂纤维结构是磁流变脂流变学性能影响的主导因素，剪切稳定性良好；在较高温度、较强磁场强度下，皂纤维缠结程度降低而磁链强度增强，磁链结构在磁流变脂流变学性能影响中占主导因素，剪切稳定性良好；在从皂纤维影响占主导变化为磁链影响占主导过程中，皂纤维剪切破坏时磁性颗粒被释放出来，因磁场的影响，磁性颗粒无法及时分散至皂纤维内部，最终致使磁流变脂剪切稳定性变弱。

关键词: 磁流变脂, 热磁耦合, 皂纤维, 磁链, 剪切稳定性

Abstract:

The internal media of magnetorheological (MR) devices are faced with complex working conditions, such as thermo-magnetic coupling, frequent shearing and so on. Shear stability is an important indicator to evaluate the durable service of MR medium. In this work, an experimental study was conducted to investigate the change law and mechanism of the shear stability of the MR grease prepared in the laboratory under the thermo-magnetic coupling by analyzing the rheology and magnetic properties. The results showed that the rheological properties of MR grease changed significantly when the temperature and magnetic field intensity change. The results of thixotropy analysis and continuous shear indicated that MR grease maintained favorable shear stability under the thermo-magnetic coupling effect. The interaction of the soap fiber structure of carrier grease and magnetic linkage affected the shear stability of MR grease significantly. At relative low temperature and comparative weak magnetic field, the structure of soap fiber was the main factor affecting the rheological properties of MR grease. At higher temperature and stronger magnetic field strength, the entanglement degree of soap fiber decreased and the magnetic linkage became strengthened. The magnetic linkage structure played a dominant role in the rheological properties of MR grease. Besides, the MR grease represented favorable shear stability under above both conditions in this work. The shear stability of MR grease finally became weaken during the process of dominant factor converted from the soap fiber to the magnetic linkage for two reasons: the magnetic particles were released while the shear failure of soap fiber and they cannot be dispersed in time due to the influence of magnetic field.

Key words: magnetorheological grease, thermo-magnetic coupling, soap fiber, magnetic linkage, shear stability

中图分类号:

O373

杨广鑫, 潘家保, 周陆俊, 高洪, 王晓雷. 热磁耦合作用下磁流变脂剪切稳定性及其机理[J]. 化工进展, 2021, 40(8): 4428-4437.

YANG Guangxin, PAN Jiabao, ZHOU Lujun, GAO Hong, WANG Xiaolei. Shear stability and mechanism of magnetorheological grease under thermo-magnetic coupling[J]. Chemical Industry and Engineering Progress, 2021, 40(8): 4428-4437.

图/表 11

表1 基载液润滑脂主要成分及技术参数

稠化剂种类

稠化剂

含量/%

基础油

黏度

/mm²·s^-1

滴点

/℃

稠度

等级

工作

锥入度

表2 MRF-15羰基铁粉颗粒主要技术参数

平均粒子直径/μm	粒度分布/%
平均粒子直径/μm	粒子直径≤2.5μm	粒子直径≤4.5μm	粒子直径≤8μm
3~5	10	50	90

图1 磁流变脂结构形态图

图2 无磁场作用下磁流变脂和润滑脂触变性

图3 零场强度下剪切稳定性

图4 各温度下磁流变脂磁滞回线

图5 恒定剪切速率磁流变脂剪切流动性能

图6 不同温度和磁场强度下磁流变脂平均剪切黏度

图7 热磁耦合作用下磁流变脂触变性

图8 不同磁场强度和温度下触变环面积

图9 磁流变脂热磁耦合触变机理示意图

参考文献 22

1	李凯权, 代俊, 常辉, 等. 磁流变材料的应用综述[J]. 探测与控制学报, 2019, 41(1): 6-14.
	LI Kaiquan, DAI Jun, CHANG Hui, et al. Review of magnetorheological materials application[J]. Journal of Detection & Control, 2019, 41(1): 6-14.
2	KUMAR J S, PAUL P S, RAGHUNATHAN G, et al. A review of challenges and solutions in the preparation and use of magnetorheological fluids[J]. International Journal of Mechanical and Materials Engineering, 2019, 14(1): 1-18.
3	田祖织, 侯友夫, 王囡囡. 磁流变传动装置温度特性研究[J]. 仪器仪表学报, 2012, 33(3): 596-601.
	TIAN Zuzhi, HOU Youfu, WANG Nannan. Study on temperature properties of magnetorheological transmission device[J]. Chinese Journal of Scientific Instrument, 2012, 33(3): 596-601.
4	胡志德, 晏华, 郭小川, 等. 具有阻尼功能的锂基磁流变脂的稳定性及流变性能[J]. 石油学报(石油加工), 2015, 31(1): 166-171.
	HU Zhide, YAN Hua, GUO Xiaochuan, et al. Rheological properties and stability of lithium-based magnetorheological grease with damping effect[J]. Acta Petrolei Sinica (Petroleum Processing Section), 2015, 31(1): 166-171.
5	陈松, 李峰, 黄金, 等. 温度对磁流变液材料及传力性能的影响[J]. 材料导报, 2015, 29(16): 151-155.
	CHEN Song, LI Feng, HUANG Jin, et al. Influence of temperature on magnetorheological fluid and transmission performance[J]. Materials Review, 2015, 29(16): 151-155.
6	WANG H X, LI Y C, ZHANG G, et al. Effect of temperature on rheological properties of lithium-based magnetorheological grease[J]. Smart Materials and Structures, 2019, 28(3): 035002.
7	SAHIN H, GORDANINEJAD F, WANG X, et al. Rheological behavior of magneto-rheological grease (MRG)[C]// Proceedings of SPIE, The International Society for Optical Engineering, San Diego, California, USA, 2007.
8	SAHIN H, WANG X J, GORDANINEJAD F. Temperature dependence of magneto-rheological materials[J]. Journal of Intelligent Material Systems and Structures, 2009, 20(18): 2215-2222.
9	汪辉兴, 张广, 欧阳青, 等. 磁流变脂在剪切模式下的流变特性[J]. 上海交通大学学报, 2019, 53(3): 380-386.
	WANG Huixing, ZHANG Guang, OUYANG Qing, et al. Rheological properties of magnetorheological grease under shear mode[J]. Journal of Shanghai Jiao Tong University, 2019, 53(3): 380-386.
10	KIM J E, KO J D, LIU Y D, et al. Effect of medium oil on magnetorheology of soft carbonyl iron particles[J]. IEEE Transactions on Magnetics, 2012, 48(11): 3442-3445.
11	胡志德, 晏华, 王雪梅, 等. 稠化剂含量对磁流变脂流变行为的影响[J]. 功能材料, 2015, 46(2): 2105-2108, 2114.
	HU Zhide, YAN Hua, WANG Xuemei, et al. The effect of soap content on the rheology of mineral oil-based magnetorheological grease[J]. Journal of Functional Materials, 2015, 46(2): 2105-2108, 2114.
12	何国田, 廖昌荣, 邓绍更, 等. 磁流变酯机理模拟研究[J]. 功能材料, 2011, 42(3): 550-552, 556.
	HE Guotian, LIAO Changrong, DENG Shaogeng, et al. Mechanism simulation of magnetorheologic grease[J]. Journal of Functional Materials, 2011, 42(3): 550-552, 556.
13	何国田, 廖昌荣, 王平, 等. 非圆形磁性颗粒对磁流变脂剪切应力的影响及其计算模型研究[J]. 功能材料, 2011, 42(9): 1694-1697.
	HE Guotian, LIAO Changrong, WANG Ping, et al. The effect of un-round magnetic particle on magnetorheologic grease shear stress and its computational model[J]. Journal of Functional Materials, 2011, 42(9): 1694-1697.
14	MOHAMAD N, UBAIDILLAH, MAZLAN S A, et al. A comparative work on the magnetic field-dependent properties of plate-like and spherical iron particle-based magnetorheological grease[J]. PLoS One, 2018, 13(4): e0191795.
15	MOHAMAD N, UBAIDILLAH, MAZLAN S A, et al. The effect of particle shapes on the field-dependent rheological properties of magnetorheological greases[J]. International Journal of Molecular Sciences, 2019, 20(7): E1525.
16	WANG H X, ZHANG G, WANG J. Quasi-static rheological properties of lithium-based magnetorheological grease under large deformation[J]. Materials, 2019, 12(15): 2431.
17	MOHAMAD N, MAZLAN S A, UBAIDILLAH, et al. The field-dependent rheological properties of magnetorheological grease based on carbonyl-iron-particles[J]. Smart Materials and Structures, 2016, 25(9): 095043.
18	潘家保. 润滑脂热流变特性及管路减阻研究[D]. 徐州: 中国矿业大学, 2016.
	PAN Jiabao. Study on thermorheological properties and drag reduction in pipes of lubricating grease[D]. Xuzhou: China University of Mining and Technology, 2016.
19	胡志德, 晏华, 王雪梅, 等. 冷却条件对磁流变脂微观结构及动态流变行为的影响[J]. 功能材料, 2014, 45(24): 24082-24086.
	HU Zhide, YAN Hua, WANG Xuemei, et al. The effect of cooling profile on the microstructure and rheology of mineral oil-based magnetorheological grease[J]. Journal of Functional Materials, 2014, 45(24): 24082-24086.
20	胡志德, 赵湖钧, 王大伟. 羰基铁粉对锂基磁流变脂动态流变行为的影响[J]. 材料导报, 2019, 33(S2): 630-633.
	HU Zhide, ZHAO Hujun, WANG Dawei. Effect of carbonyl iron on dynamic rheological properties of lithium-based magnetorheological grease[J]. Materials Reports, 2019, 33(S2): 630-633.
21	许俊, 徐楠, 王晓波, 等. 冰水浴和自然冷却条件下锂基润滑脂的流变学性能[J]. 摩擦学学报, 2013, 33(4): 406-412.
	XU Jun, XU Nan, WANG Xiaobo, et al. Rheology of lithium greases under iced water and room air[J]. Tribology, 2013, 33(4): 406-412.
22	丁松燕, 刘红柱, 柏莲桂, 等. 羟乙基纤维素溶液的触变性与反触变性[J]. 材料导报, 2013, 27(20): 78-83.
	DING Songyan, LIU Hongzhu, BAI Liangui, et al. Thixotropy and anti-thixotropy of hydroxyethyl cellulose aqueous solutions[J]. Materials Review, 2013, 27(20): 78-83.

热磁耦合作用下磁流变脂剪切稳定性及其机理

Shear stability and mechanism of magnetorheological grease under thermo-magnetic coupling

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