摘要
研究一无限长弹性薄壁充液圆柱壳的自由振动特性，获得了在不同周向波数时充水圆柱壳的频散曲线，讨论了此耦合系统自由振动时的传播波所对应的振动能量流。
The free vibration behavior of a coupling system with an infinite cylindrical elastic shell filled with fluid is studied. The simple harmonic motion of the shell and the pressure in the fluid are described with the Flgge shell equation and Helmholtz equation, respectively. According to the radial velocity at the boundary wall between the fluid and the shell, the equations of motion of the coupled system are obtained. The dispersion behavior of free waves is investigated. The equation for determining the vibrational energy flow carried by various internal forces is derived. The characteristics of the propagating waves are discussed from the point of view of energy.
出处
《华中理工大学学报》
CSCD
北大核心
1997年第2期85-87,共3页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金
关键词
充液圆柱壳
振动能量流
耦合振动
结构振动
壳体
fluid filled cylindrical shell
vibrational energy flow
coupled vibration
