Noise Path Identification using power flow analysis

초록

a simple equation is derived for calculation of the vibrational power for the isolator system with multiple isolators like car. It is also successfully applied to identifying the major isolator contributing to the increase of structure-borne noise in a passenger car. Eighteen isolators of a test vehicle are considered as vibration transmission paths which are the engine mount, the gearbox mount, the exhaust mount, etc. By the evaluation of the vibrational power flow of each isolator.