静水及波浪中四筒型基础的动力及运动特性研究  

RESEARCH ON DYNAMIC AND MOTION CHARACTERISTICS OF FOUR BUCKET FOUNDATION IN STILL WATER AND WAVES

作　　者：刘宪庆 赵明阶[1] 乐丛欢[2] 余葵[1] 罗盛 Liu Xianqing;Zhao Mingjie;Le Conghuan;Yu Kui;Luo Sheng(River and Sea College,Chongqing Jiaotong University,Chongqing 400074,China;School of Civil Engineering,Tianjin University,Tianjin 300072,China;Army Logistics University of PLA,Chongqing 401331,China)

机构地区：[1]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074 [2]天津大学建筑工程学院,天津300072 [3]陆军勤务学院,重庆401331

出　　处：《太阳能学报》2022年第9期211-217,共7页Acta Energiae Solaris Sinica

基　　金：国家重点研发计划(2018YFC0810402);重庆市自然科学基金(CSTC2016JCYJA0580);国家自然科学基金(51679163);水利工程仿真与安全国家重点实验室开放基金(HESS15-12);重庆英才计划·创新创业示范团队(CQYC201903204)。

摘　　要：以四筒型基础为研究对象,通过模型试验和数值模拟的形式对影响结构静水和规则波浪中动力及运动特性的因素进行分析。结果表明:MOSES能较好地预测结构在静水中的动力特性以及波浪中的运动响应的变化趋势;结构摇荡运动的附加质量系数取值在1.4~1.6之间,大于船舶动力学的建议值1.2;随着吃水的增加,结构的垂荡运动呈增大趋势,但结构的摇摆运动呈下降趋势;随着水深的增加,结构的摇荡运动呈下降趋势,即浅水可增强结构的竖向运动。Taking four bucket foundations for object,the factors influencing the dynamic and motion characteristics of the structure are studied by model tests and numerical simulations in still water and regular waves. The results show that:The dynamic characteristics of the structure in still water and motion responses in waves can be predicted reasonably well by MOSES the added mass coefficients of oscillating motion range from 1.4 to 1.6,which are greater than the recommended value of 1.2 in ship dynamics;With the increase of draft,the heave motion of the structure shows an increasing trend while the rocking motion shows a decreasing trend;As the water depth increases,the oscillating motion of the structure decreases,that is to say,the vertical motions are enhanced in shallower water.

关 键 词：海上风电 筒型基础 附加质量系数 响应幅值算子 吃水 水深 

分 类 号：P752[天文地球—海洋科学] TV321[水利工程—水工结构工程]