关门时车内声场的仿真与试验研究

doi:10.19562/j.chinasae.qcgc.2021.06.015

Abstract

Abstract:

This paper aims to predict in advance the interior noise of vehicle at the moment of door closing before its completion of manufacturing. Firstly， the transient impact load on the vehicle door during door closing is discretized， the field and bench tests are conducted， and the discretized loads are calculated by transfer path analysis （TPA） method. Then， the finite element model of vehicle door is established， and the discretized loads obtained are used as the input of the finite element model of vehicle door. Finally， the time domain boundary element model of the interior radiated noise is established， and the transient finite element vibration response of vehicle door is mapped to the boundary element in time domain to predict the interior noise of the vehicle. The results show that the simulation data well agree with the test results， verifying the feasibility of predicting the noise inside the vehicle during door closing by discretizing transient load of door closing and acoustic?structure coupling analysis.

Key words: vehicle engineering, vehicle interior noise, finite element method, boundary element method

Zhe Liu,Yunkai Gao,Xiang Xu,Jiaju Chen,Chao Ma. Simulation and Experimental Study on Vehicle Interior Sound Field During Door Closing[J].Automotive Engineering, 2021, 43(6): 909-916.

Figures/Tables 16

References 20

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Simulation and Experimental Study on Vehicle Interior Sound Field During Door Closing

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