This paper presents the structural vibration and acoustic radiation of a multibody vehicle system in interior and exterior under cleat impact excitations. The entire structure model, which consists of a hyper-elastic tire, a 17-inch lightweight wheel, a rotatable hub, a high-strength knuckle, a control arm and a spring-damper suspension, is a quarter vehicle to simulate transient response when passing through a cleat. The normal acceleration of a vibrating structure surface is applied as an acoustic noise source. A structural-acoustic coupling is employed to consider the interactive effects of the coupled system. The influence of the structure-borne noise can be confirmed by the frequency-correlation analysis between vibration acceleration and acoustic pressure. A sound pressure level (SPL) for near-field radiation is calculated by the finite element method (FEM). In addition, acoustic characteristics such as sound intensity in the passenger cabin are calculated through the boundary element method (BEM). The cleat impact experiment in a hemi-anechoic chamber is presented and validated in detail.

中文翻译：

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由于防滑钉的影响，使用多体动力学系统在车辆内部和外部的振动声响应

本文介绍了在夹板冲击激励下，内部和外部多体车辆系统的结构振动和声辐射。由超弹性轮胎，17英寸轻质车轮，可旋转轮毂，高强度转向节，控制臂和弹簧减震器悬架组成的整个结构模型是四分之一车辆，可在以下情况下模拟瞬态响应：穿过防滑钉。振动结构表面的法向加速度用作声噪声源。使用结构声耦合来考虑耦合系统的交互作用。固体声的影响可以通过振动加速度和声压之间的频率相关分析来确定。通过有限元方法（FEM）计算近场辐射的声压级（SPL）。另外，通过边界元法（BEM）计算客舱中的声音强度等声学特性。提出并验证了在半消声室中的防滑钉冲击实验。