摘要:频响函数(FRF)综合法是分析复杂组合结构的最有效方法之一。通过采用导纳矩阵描述机组、隔振装置和基座的频响特性,建立了船用柴电机组基于频响函数的子结构模型。Ansys建模和Matlab理论仿真对比结果表明:基于频响函数的子结构综合法能够比较精确有效地描述船用柴电机组隔振平台以及类似的隔振平台。 |
关键词: 柴电机组 频响函数综合法 隔振系统 |
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Modeling Simulation for Diesel Electric Set′ Isolation System Based onthe Frequency Response Function Coupling Method |
Hang Wuxiong,Zhang Zhiyi,Shen Jianping |
Shanghai Marine Diesel Engine Research Institate,Shanghai 201108;State Key Laboratory of Mechanical System and Vibration,Shanghai Jiao Tong University,Shanghai 200240 |
Abstract:The frequency response function(FRF)coupling method is one of most essential analysis methods for complex combination structure.By using the admittance matrix to describe the characteristics of frequency response,vibration isolation device and the base, the substructure model of the marine diesel generator based on frequency response function was established. The result of the Ansys modeling and Matlab theory simulation shows that the substructure synthesis method based on FRF can describe the vibration isolation platform of the marine diesel generator and similar kinds of vibration isolation platforms effectively and accurately. |
Key words: diesel electric set FRF coupling method isolation system |