噪声与振动控制2017，Vol.37Issue(6)：56-60,5.DOI:10.3969/j.issn.1006-1355.2017.06.011
内饰车身地板振动性能优化分析
Vibration Performance Optimization Analysis of Trim Body Floors
李华清 1张相坤1
作者信息
- 1. 东南汽车工业有限公司汽车研究院,福州 350119
- 折叠
摘要
Abstract
In the process of engineering design of an SUV, the vibration transfer functions from the key mounting points to the response points on the floor of the trim body are analyzed by means of finite element method. Compared the results of the analysis with the vibration response functions of a reference vehicle, the peak value at the measurement points on the trim body floor is found to be overlarge. Through mode participation and mode analyses, it is diagnosed that the overlarge peak values is caused by the local modes of the floor. To raise the local stiffness of the floor, the topography optimization of the floor structure is done with the vibration transfer function as the target function. Correspondingly, a new floor structure with rib reinforcement is designed. After manufacturing the prototype vehicle, the vibration transfer function of the substantial vehicle is tested and the effectiveness of the simulation analysis is verified. The results of the research show that the analysis of the vibration transfer function of the vehicle floor based on topography optimization can be applied to the structure design of trim body floors to reduce the risk of real car's fluctuations.关键词
振动与波/工程设计/内饰车身/振动传递函数/模态贡献量/形貌优化Key words
vibration and wave/engineering design/trim body/vibration transfer function/mode participation/topography optimization分类
交通工程引用本文复制引用
李华清,张相坤..内饰车身地板振动性能优化分析[J].噪声与振动控制,2017,37(6):56-60,5.
