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以准确预测高频隔振效果为目的,基于多维系统阻抗分析的观点,采用子结构导纳分析法,研究了非对称性和多支承间的耦合作用对柔性多支承隔振系统的隔振效果之影响,首先系统地导出任意多支承非对称柔性隔振系统的传递率及响应此的解析表达式,进而分析各种参数情况下非对称性对隔振效果的影响,揭示系统的各动态特性参数对隔振效果的影响规律,并给出实际系统可作对称简化处理的数量界限,从而为高频隔振效果的准确预测以及合理有效的隔振设计提供依据。
To accurately predict the effect of high frequency vibration isolation, based on the multi-dimensional system impedance analysis, the sub-structure admittance analysis method is used to study the vibration isolation effect of flexible multi-bearing vibration isolation system due to the coupling effect of asymmetry and multi- The influence of the asymmetry on the vibration isolation effect is analyzed systematically and the dynamic response of the system is revealed The influence law of the parameters on the vibration isolation effect and gives the limit of the number of the symmetrical simplified processing for the actual system so as to provide the basis for the accurate prediction of the high frequency vibration isolation effect and the reasonable and effective vibration isolation design.