測定による固体伝ぱ音と境界要素法を併用した簡便な振動挙動予測

概要

論文の詳細を見る
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. Simple prediction of the vibration behavior can be achieved using measured sound pressure distribution caused by structure borne sound and a vibration-sound pressure transformation matrix. The proposed method is validated by numerical simulation and experiment at natural and off-natural frequencies.
一般社団法人日本機械学会の論文
1997-02-25