Coupled Lateral-Torsional Vibration of a Rotor System Trained by Gears : 10th Report, Noise Measurement by Sound Intensity Method

Abstract

There are many papers dealing with the vibration and noise of a geared-rotor system. Most of them, however, do not refer to the relations between the location of noise occurrence and noise propagation. In this paper, by using the sound intensity method, locations of noise occurrence and characteristics of noise propagation were investigated by measuring the sound power and the sound intensity. As a result. noises caused by the vibrations of the rotor and the gears, and each characteristic of noise propagation were clarified, and it was verified that the sound intensity methodis suitable for the study of the vibrations and the noises of the geared-rotor system.