基于混合动力汽车正时齿形链系统的振动噪声特性

doi:10.13229/j.cnki.jdxbgxb.20211234

摘要/Abstract

摘要：

基于混合动力乘用车的特殊工况要求，在对发动机正时齿形链系统进行结构设计的基础上，进行了正时齿形链系统的振动噪声特性研究。通过建立正时齿形链系统的动力学模型，分析了其动力学特性，并获得了振动分析所需边界条件；基于有限元分析方法，通过模态分析和频率响应分析了正时齿形链系统的振动特性，同时，以正时齿形链系统的振动特性为输入条件进行齿形链系统的声学边界元仿真分析，并对声压-频率响应曲线以及噪声的分布情况进行了研究。结果表明，该正时齿形链系统具有优异的振动噪声特性，本文方法可为混合动力汽车的减振降噪工作提供参考。

关键词: 机械设计, 混合动力, 正时齿形链系统, 振动噪声, 动力学特性, 频率响应分析, 声学边界元仿真分析

Abstract:

Based on the special working condition requirements of hybrid electric vehicles， this thesis conducted a study on the vibration and noise characteristics of the timing silent chain system （TSCS） based on the structural design of the TSCS. The dynamics characteristics of the TSCS were analyzed and the boundary conditions required for vibration analysis were obtained by establishing the dynamics model of the TSCS， and based on the finite element analysis method， the vibration of the TSCS was studied through modal analysis and frequency response analysis， at the same time， using the vibration characteristics of the TSCS as input conditions， the acoustic boundary element simulation analysis of the TSCS was carried out， and the acoustic pressure-frequency response curve and the distribution of noise were studied. The analysis results show the excellent vibration and noise characteristics of the TSCS， and the analysis method will provide a reference for the vibration and noise reduction work of hybrid electric vehicles.

Key words: mechanical design, hybrid electric, timing silent chain system, vibration and noise, dynamics characteristics, frequency response analysis, acoustic boundary element simulation analysis

中图分类号:

TB534

程亚兵,杨泽宇,李岩,安立持,徐泽辉,曹鹏宇,陈璐翔. 基于混合动力汽车正时齿形链系统的振动噪声特性[J]. 吉林大学学报(工学版), 2023, 53(9): 2465-2473.

Ya-bing CHENG,Ze-yu YANG,Yan LI,Li-chi AN,Ze-hui XU,Peng-yu CAO,Lu-xiang CHEN. Vibration and noise characteristics base on timing silent chain system of hybrid electric vehicle[J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(9): 2465-2473.

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名称	材料	抗拉强度/MPa	屈服强度/MPa	泊松比	弹性模量/MPa	密度/（kg·m^-3）
链板	50CrVA	1274	1127	0.285	2.1×10⁵	7.85×10³
销轴	20CrMnMo	1175	885	0.285	2.1×10⁵	7.85×10³
链轮	40Cr	980	785	0.285	2.1×10⁵	7.85×10³