摘要
本文基于管道静变形曲线是一平面曲线,其运动可视为在静平衡位置附近的小运动的特点,用Lindstedt-Poincare法研究了管道面内和面外的非线性自由振动,求得振动的幅频关系及振动频率随张力及水深的变化规律,并用多尺度法分析了内共振现象。
Based on that the static deformation of the pipeline is a plane curve and its motion is regarded as a small vibration about the static equilibrium position, using the Lindestedt-Poincare method this paper dais with the non-linear free vibration of suspended pipeline both in-plane and out-of-plane, obtains the amplitude versus frequency relationship and the law of change of the frequencies versus tension and waterdepth, discusses also the internal resonance via the method of Multiple Scales.
出处
《海洋工程》
CSCD
北大核心
1992年第1期20-34,共15页
The Ocean Engineering
