Numerical analysis for influences of joint angles between L-shaped panel structures with acoustic black hole on damped vibration responses

Abstract

This paper describes hybrid vibration analysis using Statistical Energy Analysis（SEA）and FEM for two panels connected in L-shape with an acoustic black hole having a damping layer. The angle of the joint between the two flat plates in the L-shaped panel structure is changed. We focused on effects of changing the angle of the joint in the L-shaped panel structure on wave transmission characteristics between the two panels and damping effects due to the acoustic black hole.