直线振荡电机设计

论文总字数：27735字

摘 要

新世纪以来，能源危机日益严重，节能环保成为全体人类的共同课题，提高机械工作效率是降低能源消耗的重要思路。在某些需要直线运动的特殊情况下，直线电机不需要额外传动装置，降低了摩擦损耗，提高了系统整体的效率，达到了节能环保的目的。

本文介绍了有关直线电机的基本原理、结构以及发展情况，分析比较了不同类型的直线电机以及电磁场研究方法，利用解析法与数值计算法相结合的方式，设计了一种圆筒型动磁式直线振荡电机。设计过程中首先建立了等效磁路模型，初步明确了电机性能的影响因素，随后利用有限元仿真软件Ansoft建立了圆筒型动磁式直线振荡电机的仿真模型，并初步求解计算了相关参数的额特性曲线。

通过分析确定了对电机推力性能有影响的相关参数，研究了气隙宽度、槽口宽度以及动子轴向长度对直线电机推力大小的影响，得出了直线电机性能优化的相关规律，为直线电机的设计优化提供了依据。

关键词：圆筒型动磁式直线电机，有限元分析，建模仿真，优化设计，Maxwell 2D

Abstract

Since 21st century, the energy crisis has become an increasingly serious problem. At the same time,all human beings have to face the universal and urgent issue which is energy saving and environmental protection.As we all know，one of the most effective ways to reduce energy consumption is improving the efficiency of mechanical. In some special cases where linear motion is required, comparing to traditional motor, the linear motor does not require additional transmissions, which can reduce the friction loss, improve the overall efficiency of the system, and achieve the goal of energy saving and environmental protection.

This paper introduces the basic principle, structure and development of linear motors, analyzes and compares different types of linear motors and electromagnetic field research methods, and uses a combination of analytical and numerical methods to design a cylindrical dynamic magnetic line. Oscillating the motor. In the design process, the equivalent magnetic circuit model was established firstly, and the influencing factors of motor performance were preliminarily determined. Then the simulation model of cylindrical dynamic magnetic linear oscillation motor was established by using finite element simulation software Ansoft, and the relevant parameters were calculated and calculated. The characteristic curve of the amount.

According to the analysis, the relevant parameters affecting the thrust performance of the motor are determined. The influence of the air gap width, the slot width and the axial length of the mover on the thrust of the linear motor is analyzed. The relevant law of linear motor performance optimization is obtained. The design optimization of linear motors provides the basis..

KEY WORDS: cylindrical moving magnet linear motor, finite element analysis, modeling simulation ,optimization design ,Maxwell 2D

目 录

摘要 ……………………………………………………………………………………..…… Ⅰ

Abstract …………………………………………………………………………………… Ⅰ

1. 绪论 ……………………………………………………………………………..…1

1.1引言 ……………………………………..……………………………… 1

1.2直线电机简介 ………………..………………….………………………..1

1.2.1直线电机原理……..…………….………………………………..1

1.2.2直线电机基本结构……..…………….……………………..……3

1.3发展历史及研究现状 ………………………………..……………….…5

1.3.1直线电机发展历史 ……………… …………………….……..…5

1.3.2直线电机应用现状 ………………………………………………6

1.4直线电机电磁场分析方法简介 …………………………………………..……7

1.4.1解析法 ……………… ……………………………………….………7

1.4.2数值计算法 ………………………………………………………7

1.5本文的研究内容及结构 ………………………………………………………10

1. 动磁直线振荡电机基础理论……………………………………………………………..……11

2.1引言 …………………………………………………………………………………………………………...11

2.2电磁学Maxwell方程组 …………………………………………………………………………..11

2.3磁路分析 …………………………………………………………………………………………………………..12

2.4本章小结 ……………………………………………………………………………15

1. 直线振荡电机有限元分析……………………………………………………………………….16

3.1引言 …………………………………………………………………………………………………………….16

3.2有限元分析法 ………………………………………………………………………………………….…..….16

3.2.1有限元求解过程 …………………………………………….…………………….…..….16

3.3.2有限元仿真软件介绍 ……………………………………….…………………….…….17

3.3瞬态仿真 ………………….………………..……………………..…….…………..…….……………….……18

3.3.1 Ansoft Transient模块仿真 ………………….…………………..……………….…..18

3.3.2有限元瞬态仿真模型建立 ………………….…………………..……………………19

3.3.3电机特性的计算结果及分析 ………………….…………………..………………..…21

3.3.4电机电磁场计算结果及分析 ……………….…………………..……………….……24

3.4本章小结 ………………….…………………..…………………………..…………………………..….……..27

1. 圆筒型动磁式直线振荡电机优化设计………………………………………………...…28

4.1引言 …………………………………………………………………………………………………………....28

4.2电机结构参数对电机性能的影响及优化…………………………………………………….28

4.2.1永磁体厚度对电机性能的影响…………………….…………………………………28

4.2.2槽口宽度对电机性能的影响…………………………………………………..……..29

4.2.3动子轴向长度对电机性能的影响……………………………………………..…..30

4.3本章小结 ……………………………………………………………………………………………………..…..31

结论 ………………………………………………………………………………………………………………..….32

参考文献（References） …………………………………………………………………………………..…33

致谢 ……………………………………………………………………………………………………………….…..34

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