面向噪声品质优化的减速器箱体结构设计  

Reducer casing design for sound quality improvement of radiation noise

作　　者：方源[1,2] 章桐[1,2,3] 汪浩然[1,2] 郭荣 FANG Yuan ZHANG Tong WANG Haoran GUO Rong(New Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China School of Automotive Studies, Tongji University, Shanghai 201804, China Chinese German College, Tongji University, Shanghai 201804, China)

机构地区：[1]同济大学新能源汽车工程中心,上海201804 [2]同济大学汽车学院,上海201804 [3]同济大学中德学院,上海201804

出　　处：《中南大学学报（自然科学版）》2017年第9期2331-2337,共7页Journal of Central South University:Science and Technology

基　　金：国家重点基础研究发展规划(863计划)项目(2011AA11A265);国家自然科学基金资助项目(51205290)~~

摘　　要：为降低电动车减速器辐射噪声,提高电动车动力总成噪声品质,对减速器箱体进行结构优化设计。分析减速器噪声品质的频域特性,并结合模态分析和振动噪声阶次分析确定结构优化的区域和目标,采用拓扑优化和形貌优化方法对减速器箱体进行低噪声结构优化。研究结果表明:优化后减速器的表面振动和辐射噪声有所降低,噪声品质显著提高。To reduce the structural radiation noise of the reducer and improve the sound quality of electric powertrain, the structure of gearbox was optimized. According to the results of modal analysis, noise and vibration order analysis and frequency characteristics of sound quality of the reducer, the design space and objective of optimization were determined. The results show that vibration and noise performance of the optimized reducer is enhanced while sound quality is also dramatically improved.

关 键 词：减速器 拓扑优化 形貌优化 噪声品质 心理声学 

分 类 号：U463.2[机械工程—车辆工程]