摘要
本文推广了经典的Fourier级数法,提出一种计算部分浸入无旋、无粘性理想水域中圆柱体振动特性的解析方法,得到了悬臂圆柱体在水中自由振动的频率和振型表达式,重点讨论了液面晃动和液体可压缩性的影响。文中指出:液面晃动对细长柱体、液体可压缩性对矮胖柱体耦联振动的影响有时不能忽略。
In this paper, an analytical method is presented to study the vibrational char-acteritics of a circular column submerged in an irrotational and inviscid water by extending the classical Fourier series method. The analytical expression of natural frequency and its mode of cantilever column in water are obtained. The effects of surface wave and compressibility of water are discussed in detail. The result points out that the effects of surface wave on coupled vibration of slender column and compressibility on that of squatty column sometimes can not be ignored.
出处
《力学学报》
EI
CSCD
北大核心
1989年第6期657-667,共11页
Chinese Journal of Theoretical and Applied Mechanics
基金
中国科学院基金
关键词
柱水耦联振动
振动
圆柱体
水
solid-fluid interaction, coupled vibration, cantilever circular column, hydro-dynamic pressure, analytical solution
