正交各向异性圆柱壳的稳态动力响应分析  

Harmonic response analysis of orthotropic cylindrical shells

作　　者：李学斌[1] 

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《船舶力学》2007年第1期79-87,共9页Journal of Ship Mechanics

摘　　要：分析了正交各向异性圆柱壳在静水压力作用下受到径向简谐力作用时的稳态动力响应,并且讨论了结构尺寸变化以及材料特性对响应量的影响。并指出存在着共振峰值和固有频率有微小偏移的现象,文中还给出了冲击面内和面外特征量的响应。Followlng Flügge＇s exact derivation for the buckling of cylindrical shells,the equations of motion for dynamic loading of an orthotropic circular cylindrical shell under external hydrostatic pressure were formulated.The normal mode theory was used to provide harmonic dynamic response for the equations of motion. The effect of shell＇s parameters, external hydrostatic pressure and material properties on the shell response was studied in detail.A part of tables and figures were given.The responses of displacements and strain were obtained,while those outside the area of impact were also calculated.There was a slight shift in the locations of the resonant peaks, an example was illustrated for this phenomena.

关 键 词：正交各向异性 圆柱壳 静水压力 简谐激励 

分 类 号：U661.4[交通运输工程—船舶及航道工程]