阻尼材料对环肋柱壳稳态响应影响的分析

利用Ｆｌｕｇｇｅ壳体理论，讨论了敷设自由层粘弹性阻尼材料的环肋柱壳受周期性径向激励的稳态响应，用复模量形式计及基壳和粘弹性阻尼材料的损耗因子，并计入流固耦合作用，讨论了粘弹性阻尼材料的物理参数和厚度对其稳态响应的影响。

Effects of Damping Material on Steady-State Response of Submerged Ring-Stiffened Cylindrical Shells

tructures with viscoelastic coating are widely used to control noise and resonant response of vibration. In this paper a general analysis method is presented for evaluating the steady state response of submerged evenly spaced uniform ring-stiffened cylindrical shells coated with viscoelastic damping materialsubject to a radical harmonic force. The Flugge's shell equations are used and the structural hystereticdamping is considered in the analysis. The solution is obtained by Hessenberg-transform and iterativemethod. The effects of the properties and layer's thick of damping material on the steady state response ofthe shell are discussed. Some conclusions are drawn from numerical computation,which may be valuable tothe application of damping material in noise and vibration control of the structure.