Coupled Vibration Control of Cylindrical Shells Partially Treated with Active Constrained Layer Damping
Wang Miao,Fang Zhichu
(School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200030)

Abstract: With Hamilton's Principle, the dynamic differential equations and bou ndary conditions for coupled vibration of cylindrical shells treated with active constrained layer damping (ACLD) are derived. The spectral transfer matrix method (STMM) based on analytical solutions for one-dimensional continuous structure analysis is expanded and applied to a partially ACLD cylindrical shell for the numerical analysis to overcome the shortcomings of finite element method (FEM) , such as, vast elements, high orders of dynamic equation, and repeated modeling during variation of length and location of ACLD, thus the lowest order governin gequations with the smallest number of elements are achieved. The typical numer ical examples show the effectiveness and accuracy of STMM.
Keywords: active constrained layer damping (ACLD), circular cylindrical shell, spectral transfer matrix method (STMM), proportion-derivative controller.