Dynamic Characteristics of Cylindrical Composite Panels With Surface Damping Treatments Using Full Layerwise Theory

완전층별변위이론에 근거한 표면감쇠처리된 원통형 복합적층 패널의 동적특성

Based on the full layerwise displacement shell theory, vibration and damping characteristics of cylindrical sandwich panels are investigated. The transverse shear deformation and the normal strain are fully taken into account for structural damping modelling. Modal damping factors and frequency response functions are analyzed for various structural parameters of cylindrical sandwich beams. Present results shows that full layerwise theory can accurately predict vibration and damping characteristics of cylindrical composite panels with surface damping treatments and constrained layer damping. The viscoelastic materials depending on elevated temperature environment and exciting frequencies can be fully considered.