周波数応答関数の力学的エネルギーへの分解を利用したカスケーディング設計法

抄録

This paper shows the method of evaluating vibration performance in energy dimension for NVH cascading design. The increasing trend toward electric vehicles requires the exploring of cascading design of NVH performance. However, vibration performance of the whole system is determined by coupling of each sub system, it is therefore desirable to account of the coupling of each sub system. In this paper, we focus on expressing a receptance as the sum of the mechanical energy of subsystems by using mean compliance. Then, we show how to associate it with the energy of subsystems in statistical energy analysis and energy distribution analysis. Then, it applies to the simple structure and confirm the validity. Finally, we show that the structural change can be devised from the coupling loss factor of these energy-based analysis methods and the magnitude of receptance of a response evaluation point can be reduced.