圆柱壳受激振动的分析研究  

STUDY ON THE EXCITED VIBRATION OF A CYLINDRICAL SHELL

作　　者：左言言[1] 宫镇[1] 

机构地区：[1]江苏理工大学汽车学院

出　　处：《农业机械学报》1998年第1期88-93,共6页Transactions of the Chinese Society for Agricultural Machinery

摘　　要：运用理论分析与试验研究的方法对圆柱壳的受激振动特性进行了研究。根据薄壳振动理论，建立了圆柱壳受激振动的数学模型，推导出圆柱壳振动的频率方程，解出了圆柱壳中３种波的轴向振型、波动的子波分量、波数和传播速度等重要信息。并利用频率波数分析法对圆柱壳中振动波的传播特性进行了试验研究，得到了波形、波数、传播速度和主要子波的传播方向，与理论分析的结果吻合较好。The characteristics of excited vibration of a cylindrical shell is studied in this paper. Based on the vibrational theory of thin shells, a mathematical model is established and the frequency equation is derived, by which some important information about wave propagation in the cylindrical shell such as axial vibrational models, wave components, wave numbers and propagating speeds are obtained. With the technique of frequency wave number analysis, an experimental study on the propagating characteristics of vibrational waves in the cylindrical shell is carried out. The information about wave propagation is also acquired, which is in good agreement with that acquired by theoretical analysis. In addition, the directions in which some dominant wave components propagate are identified as well.

关 键 词：振动 波传播 响应分析 圆柱面壳 农业机械 

分 类 号：S22[农业科学—农业机械化工程]