Simple prediction of vibration behavior using measured structure borne sound in conjunction with boundary element method

摘要

In order to suppress structure borne sound, it is very important to analyze the vibration behavior of a machine. Accelerometers are commonly used in measuring the vibration behavior; however, the weight of those prevents the user from obtaining accurate results. In this paper, sound pressure distribution measured by microphones is utilized to predict the vibration behavior as noncontact measurement. The relation between the vibration and sound pressure can be expressed using boundary element method.