탄소섬유적층 각도에 따른 CFRP 평판의 실내소음 특성

초록

Recently, the researche on the weight lightening of the vehicle body for increasing the fuel efficiency of automobile have been actively carried out. One way to reduce the weight is to change the material applied to the car body. In recent years, CFRP laminated plates, which has lower density and similar strength to conventional metals, has been increasingly applied to the car body. However, since the CFRP laminated plate has different sound and vibration characteristics compared with conventional metal plate, the research on the sound radiation characteristics is required for the successful application. This paper studies the effect of sound and vibration characteristics of CFRP plates according to the fiber lamination angle on interior noise of the enclosure made of CFRP laminated plate. The purpose of this paper is numerically to predict the interior noise of the enclosure caused by the vibration of the CFRP plates with different laminated angles of carbon fiber. The numerical method is validated by theoretical and experimental method.

키워드