磁流变液的特性原理及运用设计 前 言
磁流变液传动是传动学中的一门新兴学科，它与液体粘性传动、液力传动和液压传动的工作原理有着本质的区别。液体粘性传动基于牛顿内摩擦定律，以液体的粘性剪切力来传递动力；液力传动基于欧拉方程，以液体动量矩的变化来传递动力；液压传动基于帕斯卡定律，以液体的压能来传递动力，而磁流变液传动基于Bingham(宾汉)方程，以磁流变液的剪切应力来传递动力。Bingham方程虽然早已知晓，但利用Bingham方程来发展磁流变液传动，却是近几年的事。因此，本文首先全面系统地介绍这一全新的传动技术。
磁流变液技术问世很早，但在最近几年才获得了重新认识和重大的发展，并在许多工程技术领域获得了应用，取得了明显的经济效益和社会效益。由于磁流变液具有的优良性能，各国都在竞相开发这类新的产品，例如磁流变减振器、离合器、变速器、变矩器、制动器、固定支架、航空航天材料等。近年来，随着计算机直接控制技术在智能减振、传动及智能结构等领域的应用技术发展，人们对磁流变液及其在振动中的应用进行了大量的研究工作，一些与材料和装置有关的专利和文献引起了不少学者和工程技术人员的关注。
由于磁流变液传动是一种新的传动方式，国内甚至国外都尚未发现这类专著，可供参考的资料有限，通过运用收集的国内外相关资料，消化吸收美国Lord公司的技术成果，利用自己所学知识，在黄金老师的指导下，最终建立了圆筒式磁流变离合器的设计计算方法，并对该离合器传递转矩的各项参数进行了分析，圆满地完成了毕业设计任务。 目 录
概述 ············································································1
§1.1 磁流变液研究概况 ························································1
§1.2 磁流变液的应用前景 ·····················································2
第二章 磁流变液材料及特性 ··········································4
§2.1 磁流变液的材料组成 ····················································4
§2.2 磁流变液的性能 ···························································7
§2.3 磁流变液性能的影响因素 ············································10
第三章 磁流变效应机理 ···················································15
§3.1 磁流变效应的特征 ·······························································15
§3.2 磁流变液的磁畴理论 ···························································16
§3.3 磁流变液的链化模型 ···························································16
§3.4 磁流变液的本构模型 ···························································20
§3.5 磁流变液的传力模型 ···························································22
§3.6 影响磁流变液传力的因素 ···················································23
第四章 磁流变离合器的分析 ···············································26
§4.1 离合器的功能 ·······································································26
§4.2 磁流变液应用于离合器 ·······················································26
§4.3 磁流变离合器的工作原理 ····················································27
§4.4 磁流变离合器的数学力学模型 ············································28
§4.5 磁流变离合器的理论分析 ·············································29
§4.6 磁流变离合器的理论分析结果 ······································32
第五章 磁流变离合器的设计 ················································35
§5.1 磁流变离合器的设计理论 ····················································35
§5.2 磁流变离合器的设计计算 ····················································37
§5.3 磁流变离合器的设计 ····························································44
§5.4 磁回路的设计 ·······························································52
参考文献 ·················································································5 参 考 文 献
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