论文总字数：14191字

摘 要

轮毂是任何汽车的重要部件之一，重型商用车也不例外。轮毂的质量直接关系到了汽车的行驶安全，因此，必须要保证轮毂的质量满足行驶需求，才能保证汽车的正常行驶。本次设计针对某重型商用车的轮毂总成进行优化设计，并设计出合适的轮毂。根据国家标准和选择的重型商用车各参数，对轮毂进行优化设计，利用UG NX软件设计出合适的三维模型，再利用ANSYS有限元软件，对轮毂进行应力分析和模态分析。基于有限元分析对轮毂轻量化设计，最终在不影响安全的情况下，降低轮毂质量3.06%，完成轻量化设计。

关键词：重型商用车；有限元分析；轮毂总成；优化设计；轻量化

Optimization Design of Hub Assembly of A Heavy Commercial Vehicle Based on Finite Element Analysis

Abstract

Hub is one of the important parts of any vehicle, heavy commercial vehicle is no exception. The quality of the wheel hub is directly related to the driving safety of the car. Therefore, it is necessary to ensure that the quality of the wheel hub can meet the driving demand in order to ensure the normal driving of the car. This design optimizes the hub assembly of a heavy commercial vehicle, and designs the appropriate hub. According to the national standards and the selected parameters of heavy commercial vehicles, the wheel hub is optimized. The appropriate three-dimensional model is designed by using UG NX software. Then the stress analysis and modal analysis of the wheel hub are carried out by using ANSYS finite element software. Based on the finite element analysis of the hub lightweight design, the final in the case of no impact on safety, reduce the weight of the hub by 3.06%, complete the lightweight design.

Keywords: Heavy Commercial Vehicle; Finite Element Analysis; Hub Assembly; Optimization Design; Lightweight

目录

摘要……………………………………………………………………………………………………………Ⅰ

Abstract………………………………………………………………………………………………………Ⅱ

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

1.1 课题研究的目的与意义…………………………………………………………………………………1

1.2 国内外研究现状…………………………………………………………………………………………1

1.2.1 国内研究现状……………………………………………………………………………………1

1.2.2 国外研究现状……………………………………………………………………………………1

1.3 本文主要设计内容………………………………………………………………………………………2

2.汽车轮毂结构及设计要求……………………………………………………………………………………3

2.1 汽车轮毂的结构…………………………………………………………………………………………3

2.2 汽车轮毂的设计要求……………………………………………………………………………………3

3.汽车轮毂的设计………………………………………………………………………………………………4

3.1 轮毂构件及车型选择…………………………………………………………………………………4

3.1.1 轮毂设计构件及参数……………………………………………………………………………4

3.1.2 重型商用车车型选择……………………………………………………………………………4

3.2 车轮轮辐的设计标准…………………………………………………………………………………5

4.参数化建模过程………………………………………………………………………………………………7

5.汽车轮毂的有限元分析……………………………………………………………………………………10

5.1有限元的概念…………………………………………………………………………………………10

5.2汽车轮毂有限元模型的建立…………………………………………………………………………10

5.3汽车轮毂的有限元分析………………………………………………………………………………11

5.3.1汽车轮毂的受力分析…………………………………………………………………………11

5.3.2汽车轮毂的载荷计算…………………………………………………………………………12

5.3.3汽车轮毂的径向应力有限元分析……………………………………………………………12

5.3.4汽车轮毂的弯曲应力有限元分析……………………………………………………………13

5.4汽车轮毂的模态分析…………………………………………………………………………………14

1. 汽车轮毂的优化设计……………………………………………………………………………………20

6.1优化设计的概念……………………………………………………………………………………20

6.2轮毂的优化设计过程………………………………………………………………………………20

6.3轮毂的优化设计结果………………………………………………………………………………22

6.4优化设计前后对比…………………………………………………………………………………23

1. 结论与展望………………………………………………………………………………………………24

7.1结论……………………………………………………………………………………………………24

7.2展望……………………………………………………………………………………………………24

致谢……………………………………………………………………………………………………………25

参考文献………………………………………………………………………………………………………26

第一章绪论

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