首先建立客车结构噪声传递函数模型分析车内噪声峰值频率点。然后通过工作变形分析函数模型分析在这些噪声峰值频率点车身发生振动变形较大的位置。将这些振动变形较大的位置设置成噪声贡献面板，建立面板声学贡献量分析模型来确定这些面板对车内噪声水平贡献程度，确定板件对车内声压影响主次关系。该方法为车内噪声评估和车身面板优化提供有效理论指导。%The noise transfer function (NTF) model of a bus body was established to evaluate the peak frequencies of the interior noise. Then, the large deformation of the bus body model was analyzed at the peak frequencies of the interior noise based on the theory of the operational deflection shape (ODS). The positions of the large deformation were defined as the noise contribution panels. The acoustic contributions of these panels to the interior noise level were estimated according to the analysis of the participation factor panel (PFP). The results provide valuable guidelines for the determination of contribution panels of vehicle’s interior noise.
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