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典型圆柱筒结构的瞬态应力波的研究

Research on Transient Stress Wave for Typical Cylinders

【作者】 李同勇

【导师】 尹晓春;

【作者基本信息】 南京理工大学 , 固体力学, 2004, 硕士

【摘要】 圆柱筒及圆柱层筒是工程中常用的结构,但是有关的瞬态动力响应的分析较少。本人在国内外相关研究的基础上进行研究,并且讨论了典型的单层圆柱筒,外筒—内轴结构,和双层圆柱筒z结构的瞬态响应。 作者应用瞬态波函数的特征展开法,从理论上研究了振动的频率方程,稳态波,瞬态波的传播的解析解。 在解析解的基础上,笔者用VC++进行编程,完成了振动和稳态波高精度的数值模拟;对于瞬态响应或瞬态应力波的传播问题,用有限元方法研究。对数值结果进行理论分析,并且会展示圆柱筒应力波特有的一些有趣的应力波现象;

【Abstract】 Cylinders and layered-cylinders are widely-used engineering structure. However, the research on them is only a few. Based on pertinent study, the deep investigations are conducted. Furthermore, research on single-cylinders, outer cylinder-inner-shaft, and bilayerd-cylinder is focused on and expatiated.The method of eigenfunction expansion is utilized to obtain the analytical result for the free vibration and transient response. Then, the VC++ procedure was designed and the FEM method is used. At last, the results were analyzed via graphics.

【关键词】 圆柱筒振动应力波瞬态响应动态性能
【Key words】 CylinderVibrationStress WaveDynamic Property
  • 【分类号】O346
  • 【被引频次】1
  • 【下载频次】202
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