摘要磁流变弹性体（Magnectorheological elastomer，MRE）是一种弹性模量可随外加磁场改变的新型智能材料，在宽频微幅隔振中具有广阔的应用前景。磁流变自适应体是由磁流变弹性体、导磁体、励磁线圈、线圈龙骨等组成的能够根据外界环境实时改变其刚度的隔振器件。为实现磁流变自适应体的成功应用，设计一个性能优良的磁路是首先要解决的问题。本文根据磁路的相关定理，详细介绍了磁流变自适应体的磁路设计方法，设计了磁流变自适应体的结构尺寸，利用ANSYS软件的电磁场模块对磁流变自适应体磁路进行有限元分析计算，并对磁路性能展开测试实验。通过理论分析、软件模拟及实验测试对磁流变自适应体结构的合理性进行验证。67768

毕业论文关键词  磁流变弹性体  自适应  有限元  磁路

毕业设计说明书（论文）外文摘要

Title   Magneto Circuit Design of Adaptive Magnetorheological  Structure and Methods of Testing its Properties       

Abstract

Magnetorheological elastomer (MRE) is a new kind of intelligent material whose elastic modulus can be changed with the magnetic field. It has a broad prospect of applications for the wide-frequency and small-amplitude vibration isolation. The adaptive magnetorheological structure is a vibration isolation equipment which is made up of magnetorheological elastomer, magnetic conductor, excitation coil and field spool. Its stiffness can be altered in real time according to the external environment. For the successful application of adaptive magnetorheological structure, to design magnetic circuit with excellent performance is the first problem to solve. According to theorems of the magnetic circuit, the design method of magnetic circuit of the adaptive magnetorheological structure is introducted in detail, and the dimensions of the adaptive magnetorheological structure are designed in this paper. The magnetic circuit of the adaptive magnetorheological structure is calculated by the finite element method using the electromagnetic module of ANSYS software, then the test on performance of the magnetic circuit is conducted. Theoretical analysis, software simulation and experimental test are used to verify the rationality of the design of the adaptive magnetorheological structure.

Keywords  magnetorheological elastomers  adaptive  finite element method  magnetic circuit

目   次

1  绪论 1

1.1  磁流变效应 1

1.2  磁流变弹性体的组成 2

1.3  磁流变弹性体的理论模型 4

1.4  磁流变弹性体的工作模式 5

1.5  磁流变弹性体的应用 6

1.6  磁流变自适应体 7

1.7 本文的研究内容与研究目标 7

2  磁流变自适应体磁路设计 9

2.1  磁流变自适应体磁路设计的理论基础 9

2.2  磁流变自适应体导磁材料的选择 11

2.3  磁流变自适应体结构尺寸设计案例 15

3  磁路的有限元分析 21

4  磁流变弹性体制备装置的设计 26

4.1  尺寸的理论计算 26

4.2  ANSYS模拟分析