krylov型波動ブラックホールを有するL字パネル構造のFEM援用SEA制振応答解析

抄録

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. All side edges in the L structure are fixed. Usually, modal damping is affected by not only shape of panels but also their boundaries. Thus, to account for couplings in damping between substructures, internal loss factors are evaluated using FEM and MSE（Modal Strain Energy）method. To clarify wave propagation, coupling loss factors are identified. Effects of the acoustic black hole with fixed edges on these SEA parameters are studied.