基于ANSYS的舰船艉轴断裂失效分析  

Fracture Failure Analysis of Vessel s Stern Shaft Based on ANSYS

作　　者：王鹏志 刘冰 赵树培 WANG Peng-zhi;LIU Bing;ZHAO Shu-pei(Dept.of Navigation,China Coast Guard Academy,Ningbo Zhejiang 315801,China)

机构地区：[1]武警海警学院航海系,浙江宁波315801

出　　处：《广州航海学院学报》2024年第3期39-43,共5页Journal of Guangzhou Maritime University

基　　金：武警部队装备综合研究项目(WJ2023C010100-8)。

摘　　要：针对通过布放压铁改善稳性的舰船艉轴发生断裂失效情况,基于有限元分析软件ANSYS分析其断裂失效原因。利用ANSYS软件对舰船进行静力学分析,得到舰船艉部变形与等效应力云图,并与坞修检测实际变形情况比对,分析舰船压铁对艉部局部变形的影响;利用SolidWorks建立舰船艉轴模型,导入ANSYS Workbench分析软件,分析艉部变形前后两种工况下艉轴变形和受力情况。分析结果表明:相比舰船艉部变形前,艉轴最大总变形增加494.4%,最大等效应力增加90.5%,且均位于实际断裂处附近,与实际情况相吻合,验证了采取布放压铁改善舰船稳性的方法会产生艉轴断裂失效的风险隐患,对于该类舰船预防艉轴断裂失效具有借鉴意义。Aiming at the fracture failure of vessel s stern shaft which improved stability by laying pressed iron,the failure causes were analyzed based on the finite element analysis software ANSYS.Based on ANSYS software it could be achieved with static analysis methed of the ship s transom deformation and equivalent force cloud diagram,and compared to docking repair detection of the actual deformation,it could be analyzed the ship s pressurized iron on the transom local deformation of the impact of the ship;The ship s transom model could be establised with the use of SolidWorks,imported into the ANSYSWorkbench analysis software to analyze the transom before and after the transom deformation of the transom deformation and the force of the two working conditions.The analysis results show that:compared with before stern deformation,the maximum total deformation of stern shaft increasies by 494.4%,and the maximum equivalent stress increasies 90.5%,and both of them are located near the actual fracture,which is consistent with the actual situation.It is verified that the method to improve the stability of ship by laying pressure iron will cause the risk of failure of stern shaft,and has a reference significance for preventing failure of stern shaft.

关 键 词：艉轴断裂 有限元分析 ANSYS 失效分析 等效应力 

分 类 号：U661.43[交通运输工程—船舶及航道工程]