首页> 外文会议>Cranfield Conference on Dynamica and Control of Systems and Structures in Space; 2004; Liguria; IT >Force-limited Acceleration Spectra Derivation by Random Vibration Analysis: Methodological Cases and Industrial Application
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Force-limited Acceleration Spectra Derivation by Random Vibration Analysis: Methodological Cases and Industrial Application

机译:随机振动分析推力极限加速度谱:方法论案例与工业应用

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摘要

The standard methods used for the computation of Random Load Factors are based on Miles' formula. Nevertheless, standard methods have the following limitations: 1. Do not allow taking into account the flexibility of the supporting structure. 2. Assume that the acoustic load and the mechanical vibration at interface are statistically independent 3. Do not allow taking into account spatial variations of the acoustic field. These limitations can be overcome by performing a system Random Vibration Analysis, and deriving the interface force resultant. This methodology has been verified with simple test cases and applied in the frame of SOLAR CPD project.
机译:用于计算随机载荷因子的标准方法基于Miles公式。但是,标准方法具有以下局限性:1.不允许考虑支撑结构的灵活性。 2.假设界面上的声负载和机械振动在统计上是独立的。3.不允许考虑声场的空间变化。这些限制可以通过执行系统随机振动分析并推导得到的界面力来克服。该方法已通过简单的测试案例进行了验证,并已应用于SOLAR CPD项目的框架中。

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