基于响应面法的某车身多学科数值优化  

Multidiscipline numerical optimization of a certain body based on response surface method

作　　者：张峰 王德远 姚再起 ZHANG Feng;WANG Deyuan;YAO Zaiqi(Chongqing Livan Automotive Research Institute Co.,Ltd.,Chongqing 400700,China;Ningbo Geely Automobile Research and Development Co.,Ltd.,Ningbo 315000,Zhejiang,China)

机构地区：[1]重庆睿蓝汽车研究院有限公司,重庆400700 [2]宁波吉利汽车研究开发有限公司,浙江宁波315000

出　　处：《计算机辅助工程》2025年第1期14-19,共6页Computer Aided Engineering

基　　金：国家重点研发计划项目(2020YFB1709404)。

摘　　要：针对某车型的噪声、振动和粗糙度(noise、vibration、harshness,NVH)性能与质量的平衡设计,采用响应面法进行车身NVH性能多学科优化。首先进行BIP模态、内饰车身(trimmed body,TB)动刚度和噪声传递函数(noise transfer function,NTF)的基础性能分析;然后以钣金件料厚为设计变量,采用最优拉丁方法进行实验设计(design of experiment,DOE);最后通过二次开发和模态追踪等方法获取优化响应,并创建响应面模型进行多学科优化。结果表明:在性能基本不变的前提下,车身减轻7.4 kg,减重率为3.8%。In order to balance the noise,vibration,harshness(NVH)performance and quality of a specific vehicle model,the NVH performance multidisciplinary optimization of the vehicle body is studied by response surface method.First,the basic performances of BIP mode,trimmed body(TB)dynamic stiffness and noise transfer function(NTF)are analyzed;then,the body sheet metal material thickness as design variables,design of experiment(DOE)is carried out by optimal Latin method;finally,through secondary development and mode tracking,optimized responses are obtained,response surface models are created,and multi-disciplinary optimization is conducted.The results show that the weight of the car body is reduced by 7.4 kg and the rate of lightweight is 3.8%.

关 键 词：内饰车身(TB) 动刚度 噪声传递函数(NTF) 响应面法 多学科优化 

分 类 号：U462.3[机械工程—车辆工程] TP391.99[交通运输工程—载运工具运用工程]