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Demonstration of Hybrid FE-SEA Analysis of Structure-Borne Noise in the Mid Frequency Range

机译:中频范围内结构噪声混合Fe-Sea分析的示范

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A hybrid FE-SEA analysis method has been developed to predict the structural response of complex systems at mid and high frequencies. At these frequencies, the dynamic properties of some components might be very sensitive to small perturbations while other components might exhibit a very robust behavior. This mixed dynamic behavior precludes the use of fully statistical approaches like SEA or fully deterministic approaches like FE. In the hybrid method, either an SEA or an FE model is applied to each component of the complex system, and both descriptions are rigorously coupled in a generic way. An overview of the method is presented along with numerical and experimental validation studies.
机译:已经开发了一种混合的Fe-Sea分析方法来预测中高频率的复杂系统的结构响应。在这些频率下,某些组件的动态属性可能对小扰动非常敏感,而其他组件可能表现出非常稳健的行为。这种混合动态行为排除了使用像海的完全统计方法或像Fe这样的完全确定的方法。在混合方法中,将海或FE模型应用于复杂系统的每个部件,并且两个描述都以通用方式严格地耦合。概述了该方法的概述以及数值和实验验证研究。

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