Abstract
This paper analyzes the mechanism of vibrational energy propagation and panel vibration generation at the point joints between frame and panel which can be applied to reduce the noise. First, it is shown that the transmitted power at point joints that contribute to the panel vibration is caused by the out-of-plane component in relation to the frame deformation, and the evaluation of the out-of-plane transmitted power makes it possible to identify the effective site for reducing the panel vibration. Next, the relationship between the energy inflow to the panel and the panel vibration during the initial propagation of the traveling wave was numerically verified, and a panel vibration reduction method was proposed by suppressing the energy propagation to the panel．
