【摘要】 使用ADAMS、Nastran与Sysnoise软件,采用多体系统动力学理论,有限元理论和边界元理论相结合的方法对由于路面不平激励引起的车内低频噪声特性进行了仿真分析。还探讨了座椅特性对车内噪声的影响,并对不同车速下的车内噪声特性进行了比较。更多还原

【Abstract】 The aim of the paper is to simulate and analyse the cab interior noise based on the theory of finite element method (FEM), boundary element method (BEM) and multi-body system dynamics (MD) with the consideration of road surface roughness. The paper also studies the seats affect and compares the sound pressure levels under different speeds.更多还原