【摘要】 文章提出随机波浪力激励作用下悬浮隧道锚索频域动力响应的理论研究,利用虚拟激励法和Galerkin法建立表示悬浮隧道锚索动力运动的数学方法,通过等效线性法求解振动系统非线性运动方程,分析波浪参数及结构参数对振动系统在平稳和非平稳随机激励作用下的动力响应参数影响作用。通过和孙胜男方法及AQWA水动力计算软件进行结果对比,发现文章提出的方法能够在保证精度的前提下更能反映真实的海洋情况。研究成果可为随机波浪力激励作用下的悬浮隧道及其锚索的工程设计及施工提供理论参考依据。更多还原

【Abstract】 A theoretical study of the frequency domain dynamic response of an anchor cable of a submerged floatingtunnel under random wave force excitation is presented and a mathematical method is established by the pseudo-ex-citation and Galerkin methods, and the non-linear motion equation is solved by the equivalent linearization method.The effects of parameters for wave and structure under non-stationary and stationary random excitation on the dynamicresponse parameters for the vibration system are analyzed. Compared with the results obtained from the Sunshengnanmethod and the hydrodynamic software AQWA, it shows that the proposed method can truly reflect the actual oceano-graphic conditions for meeting the requirement of accuracy.更多还原