Influence of Kinematic Analysis Parameters of Drag Anchor Trajectory Prediction Using Yield Envelope Method

作     者：WU Xiao-ni WANG Teng LIAO Qian LI Ye WU Xiao-ni;WANG Teng;LIAO Qian;LI Ye

作者机构：State Key Laboratory of Ocean EngineeringSchool of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China Department of Naval Architecture and Offshore EngineeringChina University of Petroleum(East China)Qingdao 266580China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2020年第34卷第2期

页      面：257-266页

核心收录：

学科分类：08[工学] 0824[工学-船舶与海洋工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：the National Natural Science Foundation of China(Grant Nos.51809165 and 51761135012) 

主　　题：trajectory prediction kinematic analysis drag anchor yield envelope 

摘      要：Drag anchor is widely applied in offshore engineering for offshore mooring *** prediction of the invisible trajectory during its drag-in installation is challenging for anchor design in determining the anchor final position for ensuring sufficient holding *** yield envelope method based on deep anchor failure for kinematic analysis was proposed as a promising trajectory prediction method for drag ***,there is a lack of analysis on the effects of the parameters applied in the kinematic *** current work studies the effects of the yield envelope parameters,anchor line bearing capacity factor and the anchor/soil interface *** is found that the accuracy of the yield envelope parameters has large impact on the prediction results based on deep yield *** of cases with smooth fluke predict deeper embedment depth than that from analyses of cases with rough *** decrease of the capacity factor results in the increase of the anchor embedment depth,the anchor line load,the anchor chain angle and the stable value of the normalized horizontal load component for the same drag length,while the stable value of the normalized vertical load component decreases when the capacity factor *** illustrates the importance in applying reasonable parameters and improving the method for more reliable prediction of the anchor trajectory.