大型绞吸式挖泥船定位钢桩插销孔应力及疲劳分析  

Stress and Fatigue Analysis of Spud Bolt Hole for Large Cutter Suction Dredger

作　　者：汪春晖 丁金鸿[1,2,3] 何炎平 刘亚东[1,2,3] 孟龙 WANG Chunhui;DING Jinhong;HE Yanping;LIU Yadong;MENG Long(Shanghai Jiao Tong University, a. State Key Laboratory of Ocean Engineering;b. School of Naval Architecture, Ocean ＆ Civil Engineering, Shanghai 200240, China;2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration （CISSE）, Shanghai 200240, Chin)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]上海交通大学船舶海洋与建筑工程学院,上海200240 [3]高新船舶与深海开发装备协同创新中心(船海协创中心),上海200240

出　　处：《船舶工程》2018年第4期40-44,75,共6页Ship Engineering

基　　金：高等学校博士学科点专项科研基金新教师类资助课题资助(20120073120014)

摘　　要：对定位桩插销孔处的结构进行研究,分析插销孔的应力及疲劳问题。首先分析插销孔处易发生断裂的定位钢桩的结构形式,对销孔处的结构提出2种改进方案;然后,对2种改进的插销孔进行强度计算,根据计算结果并结合实际生产确定出较好的结构形式;最后,对改进后的销孔进行疲劳分析,得到其疲劳寿命,并指出最易发生疲劳失效的部位。The structure around spud bolt hole is studied and the stress and fatigue of the bolt hole are analyzed. The structure of spud which is prone to fracture at the bolt hole is analyzed. Two improvements are proposed for the structure at the bolt hole. Strength calculations of the two improved bolt holes are then carried out and the better type is obtained according to the calculation results. Finally, fatigue analysis of the improved blot hole is made to obtain its fatigue life, and its weakest part is pointed out.

关 键 词：绞吸挖泥船 钢桩 插销孔 应力 疲劳分析 

分 类 号：U674.31[交通运输工程—船舶及航道工程]