摘要
应用概率论及随机振动的理论和方法,分析了波浪力的随机模型,提出了竖直波浪力的相关函数,利用模态分析方法论述了三维悬空管道在随机波浪作用下的动力响应并给出了在随机波浪力下的动力响应谱。算例表明,振动响应的能量集中分布在波浪载荷的峰值频率处。结果可对进一步分析海洋石油管线的疲劳可靠性提供一定的理论参考价值。
By using probability theory and random vibration methods, random model of wave force is analyzed and related function of vertical wave force is raised. Motive respondence of three--dimension submarine suspended pipeline is investigated by means of mode analysis, also the respondent spectrum is given. The example shows that the energy of vibration respondence is mainly distributed over the peak frequency of the wave force. The result can provide certain reference value to further fatigue and failure analysis of ocean petroleum pipeline.
出处
《中国海洋平台》
2006年第1期30-34,共5页
China offshore Platform
关键词
悬空管道
随机振动
相关函数
响应谱
suspended pipeline
random vibration
related function
respondent spectrum
