Experimental Study On Power Flow Finite Element Method of Vibration of a Plate Partially Covered with a Damping Sheets

부분 제진 평판 진동 해석을 위한 파워흐름유한요소법의 실험적 연구

In this paper the power flow finite element method (PFFEM) has been used to analyze the vibration of a plate partially covered with a damping sheet. Experiments have been performed to measure the loss factor and frequency response functions of the plate partially covered with the damping sheet. The data for the loss factor has been used as the input data to predict the vibration of the coupled plates with PFFEM. The comparison between the experimental results and the predicted PFFEM results for the frequency response functions has been performed. It showed that PFFEM can be effectively used to predict structural vibration in medium-to-high frequency ranges.