海洋缆索对水下航行器的动态响应  

Dynamic response of marine cable for the underwater vehicle

作　　者：张大朋[1] 白勇[1] 章浩燕[2] 朱克强[2] ZHANG Da-peng;BAI Yong;ZHANG Hao-yan;ZHU Ke-qiang(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;Faculty of Maritime and Transportation,Ningbo University,Ningbo 315211,China)

机构地区：[1]浙江大学建筑工程学院,杭州310058 [2]宁波大学海运学院,宁波315211

出　　处：《水道港口》2019年第5期600-605,共6页Journal of Waterway and Harbor

基　　金：国家自然科学基金资助项目(11272160)

摘　　要：海洋水下拖曳系统在海洋资源开发的过程中发挥着越来越重要的作用。海洋拖缆与水下拖体之间的作用相互影响、相互耦合。尤其是当水下航行器质量较小时,这种影响不可忽略。拖曳缆索的形态变化将直接影响水下航行器的运行轨迹。通过对缆索动态偏微分方程在时间上和空间上离散化处理,将无法确定缆索单元长度的问题转化为缆索单元可确定问题,并采用有限差分法进行了求解,得到了航行器直航状态下缆索的几何形态图和回转状态时缆索的几何形态图。通过将结果与实验值进行对比分析,发现在误差允许范围内(10%),这说明建立的缆索动态模型对航行器运动状态进行预测是可行的。The underwater towed system plays an increasingly important role in the development of marine resources.The interaction between ocean towed cable and underwater vehicle affects and interacts with each other.Especially when the mass of the underwater vehicle is small,this effect can not be ignored.The configuration change of the towed cable will directly affect the trajectory of the underwater vehicle.By using the dynamic partial differential equation of the marine cable appropriately,the problem that the length of the cable element was not able to be determined has been transformed into the problem of the cable element that can be determined.And the problem has been solved by the finite difference method.As a result,the configurations of the cable have been given during the motion state and the rotary state of the underwater vehicle.By comparing the results with the experimental value,we have found that the method is feasible to predict the motions of the underwater vehicle in a range of allowable error.

关 键 词：有限差分法 海洋缆索 水下航行器 缆索几何形态 

分 类 号：U65[交通运输工程—港口、海岸及近海工程] TV131.2[交通运输工程—船舶与海洋工程]