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汽车前端模块随机振动响应仿真研究

Simulation Study on Random Vibration Response of Automotive Front-end Modules
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摘要 针对汽车前端模块在各种复杂工况路面行驶过程中受到各种复杂激励而产生的随机振动,先后开展了前端模块的随机振动仿真分析和试验验证。首先基于随机振动相关理论建立了随机振动的有限元模型,随后开展了与之相对应的振动试验,监测各测点的有限元计算得到的均方根(RMS)值和功率谱密度曲线,将仿真和试验的结果进行对标,验证了该模型的有效性和可靠性。根据此次仿真和试验结果的对标,得出该模型可以及时有效地判断出汽车前端模块的失效情况,进而提前规避风险,能够为零件开发前期进行结构上的精准设计开发提供借鉴。 Addressing the random vibration conditions generated by complex excitations dur⁃ing various road conditions in the operation of automotive front-end modules,both simulation analysis and experimental validation are conducted.Firstly,a finite element model for random vibration is es⁃tablished based on relevant theories,followed by corresponding vibration tests.Monitoring the root mean square(RMS)values and power spectral density curves at various measurement points,the simulation and experimental results are compared to verify the model's effectiveness and reliability.The comparison validates the model's capability to timely and effectively identify failure conditions of the automotive front-end module,thus providing insights for precise structural design and develop⁃ment during the early stages of part development.
作者 于航 朱俊 YU Hang;ZHU Jun
出处 《上海汽车》 2024年第11期10-16,共7页 Shanghai Auto
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