摘要
为解决汽车声学包零件大批量生产时零件性能稳健性的问题,提出了一种基于区间分析的不确定性优化方法。该方法采用比奥(BIOT)理论和传递矩阵方法对声学包零件的吸隔声性能进行仿真,采用区间摄动理论对零件声学性能的不确定性进行分析,引入区间不确定性优化方法对零件的材料选择与结构设计参数进行优化设计。应用该方法对某车型内前围零件进行了分析与设计,结果表明,零件质量下降12.8%,同时系统的稳健性大幅度提升,插入损失最大波动由8 dB下降至5 dB。
In order to solve the problem of the robustness of the performance of automotive acoustic package parts in mass production,an uncertainty optimization method based on interval analysis is proposed.The BIOT theory and the transfer matrix method are used to simulate the sound absorption and insulation performance of the acoustic package parts,the Interval perturbation theory is used to analyze the uncertainty of acoustic performance,and the interval uncertainty optimization method is introduced to optimize the material selection and structural design parameters of the parts.The results show that the method is used to analyze and design the inner front wall parts of a certain model,the quality of the parts decreases by 12.8%,and the robustness of the system is greatly improved,and the maximum fluctuation of insertion loss decreases from 8 dB before optimization to 5 dB after optimization.
作者
赵红飞
李宏庚
Zhao Hongfei;Li Honggeng(Liuzhou Institute of Technology,Liuzhou Key Laboratory of Test and Control Intelligence,Liuzhou 545616;SAIC–GM–Wuling Automotive Co.,Ltd.,Liuzhou 545007)
出处
《汽车技术》
CSCD
北大核心
2024年第9期57-62,共6页
Automobile Technology
基金
广西高校中青年教师科研基础能力提升项目(2023KY1782)。
关键词
汽车声学包
区间模型
不确定性优化
Automotive Acoustic Package
Interval model
Uncertainty optimization
