多腔汽车消声器消声性能仿真分析The Analysis and Simulation of the Acoustic Performance of an Automotive Multi-Chamber Muffler
张士伟;
摘要(Abstract):
探究消声器进出口轴向角度影响消声器消声性能时,多针对单腔消声器,鉴于此,针对某汽车抗性消声器,研究多腔汽车消声器进出口轴向角度对消声性能的影响规律。采用声学有限元法,借助于VirtualLab声学仿真软件,计算消声器进气管伸进长度、第二腔室支撑板间距等结构参数改变时的消声性能。固定消声器结构参数,研究不同进出口轴向角度下消声器的消声性能,结果表明,当进出口轴向角度为60°时,多腔消声器的消声性能良好,与原消声器相比,改进后的消声器具有良好的消声性能。
关键词(KeyWords): 消声器;传递损失;消声性能;有限元仿真
基金项目(Foundation): 江西省教育厅科技项目(GJJ170973)
作者(Author): 张士伟;
Email:
DOI: 10.19356/j.cnki.1001-3997.2021.03.054
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