噪声与振动控制2019，Vol.39Issue(2)：110-113,4.DOI:10.3969/j.issn.1006-1355.2019.02.021
车身阻尼材料布局拓扑优化设计
Topology Optimization Design of Car Body Damping Material Layout
摘要
Abstract
Aiming at the problem of constant speed interior noise control in a vehicle model, a damping material design method based on multi-objective dynamic topology optimization is proposed. Firstly, the abnormal peak frequency of noise response in the car is obtained through the sound and vibration coupling analysis. Secondly, a comprehensive analysis is carried out based on the body wall panel noise contribution and modal contribution. Then, a multi-objective dynamic topology optimization model considering the dynamic control of body panels and mass control of damping materials is constructed, and a damping material layout scheme is obtained. This scheme is compared with the damping material design scheme based on modal strain energy, and the former has a better noise reduction effect than the latter. Finally, through the actual vehicle test, it is verified that this scheme has significantly improved the constant speed noise in the car. The above study shows that this damping material design method has a high practical value.关键词
声学/车内噪声/阻尼材料/拓扑优化Key words
acoustics/ interior noise/ damping material/ topology optimization分类
交通工程引用本文复制引用
张宇,曹友强..车身阻尼材料布局拓扑优化设计[J].噪声与振动控制,2019,39(2):110-113,4.基金项目
重庆电子工程职业学院校级科研资助项目(XJZK201710) （XJZK201710）
