部分構造合成法による小形モータの振動解析 : 第2報,一般粘性減衰系の複素モード合成法

概要

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This paper is concerned with a new technique for complex mode synthesis for general damping systems. The complex mode synthesis for general damping systems with fixed interface leads to difficulty in constructing rigid body modes for substructures possessing rigid body motion. Therefore, the equations of motion for rigid bodies are added to the complex mode synthesis, and substructures with a free interface complex mode are synthesized. Firstly, the technique is applied to a spring-mass-damper model with 4 degrees of freedom and the result is discussed. Secondly, the technique is applied to a 3 phase compact motor, in which the motor is divided into four substructures. The transfer function for each substructure is measured by impact testing, and the modal parameters, such as eigen values, damping factors and complex modes, are extracted by the curve fitting procedure. The transfer functions of the total structure of the motor are analyzed by the proposed method. These calculated results are compared with the experimental ones, and the effectiveness of the method is verified.
一般社団法人日本機械学会の論文
1988-08-25