汽车工程 ›› 2021, Vol. 43 ›› Issue (1): 113-120.doi: 10.19562/j.chinasae.qcgc.2021.01.015
唐中华1,贺岩松1,马涛1,张志飞1(),蒲弘杰2,李云2,陈钊2
收稿日期:
2020-05-07
修回日期:
2020-07-07
出版日期:
2021-01-25
发布日期:
2021-02-03
通讯作者:
张志飞
E-mail:z.zhang@cqu.edu.cn
基金资助:
Zhonghua Tang1,Yansong He1,Tao Ma1,Zhifei Zhang1(),Hongjie Pu2,Yun Li2,Zhao Chen2
Received:
2020-05-07
Revised:
2020-07-07
Online:
2021-01-25
Published:
2021-02-03
Contact:
Zhifei Zhang
E-mail:z.zhang@cqu.edu.cn
摘要:
本文旨在研究汽车声学包的轻量化设计,要求在保证声学性能的前提下,尽可能实现轻量化的目标。首先运用统计能量法建立了包含车身结构和各声腔的整车模型,提取80 km/h匀速工况下发动机舱的声辐射激励、动力总成激励和车身表面脉动压力激励,并将其施加在该模型上,获得驾驶员头部声腔声压,结果与试验数据吻合良好,验证了模型的有效性。接着根据各子系统对驾驶员头部声腔声压的贡献量分析结果,对内前围和前地板声学包提出了改进方案。最后以改进方案中各层材料厚度为设计变量,以驾驶员头部声腔总声压级和声学包总质量为目标构建Kriging近似模型,采用多目标遗传算法对声学包材料厚度进行优化,优化后的声学包声学性能与原来相当,而总质量减轻了20.76%。
唐中华,贺岩松,马涛,张志飞,蒲弘杰,李云,陈钊. 汽车声学包轻量化设计[J]. 汽车工程, 2021, 43(1): 113-120.
Zhonghua Tang,Yansong He,Tao Ma,Zhifei Zhang,Hongjie Pu,Yun Li,Zhao Chen. Lightweight Design of Automotive Sound Package[J]. Automotive Engineering, 2021, 43(1): 113-120.
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