流场中板和圆柱壳传递函数相关性研究  

Relations of transfer function between plane and cylindrical shell in the fluid field

作　　者：张俊杰[1] 李天匀[1] 刘志忠[1] 刘志忠 

机构地区：[1]华中科技大学船舶与海洋工程学院,武汉430074 [2]中国舰船研究设计中心,武汉430064

出　　处：《船舶力学》2013年第5期530-538,共9页Journal of Ship Mechanics

摘　　要：用弹性理论研究了流场中无限板和无限长圆柱壳的传递函数之间的相关性。运用傅里叶积分变换、势理论和波传播理论推导了耦合方程的解。计算了圆柱壳结构在同一厚度,不同频率处,以及不同半径,同一频率处的传递函数,并与板在相应条件下的计算结果进行了比较,接着还讨论了圆柱壳在同一相对厚度的传递函数。文章通过上述结果的对比,得到了板和圆柱壳在计算结果上的关系,为建立流场中圆柱壳结构声辐射的简化模型提供了理论参考。The transfer function of infinite cylindrical shell and infinite plane in the fluid field based on elasticity theory is presented. The classical integral transform technique, potential theory and wave propagation approach are used to derive the solutions of Navier equations. The transfer function of cylindrical shell at the same thickness, different frequencies and the different radius, same frequencies are computed, as compared to the results computed by the plane model. The transfer function of the same relative thickness of cylindrical shell is also discussed. Through the results comparison, the relations between the plane and the cylindrical shell are concluded.

关 键 词：圆柱壳 板 传递函数 势理论 波传播理论 环频率 

分 类 号：O328[理学—一般力学与力学基础]