调距桨叶根螺栓空泡损伤研究  

Research about Cavitation Damage of CPP Blade Bolt

作　　者：王国亮 易小冬[1] 谢清程[1] 周林慧 张金斗 WANG Guoliang;YI Xiaodong;XIE Qingcheng;ZHOU Linhui;ZHANG Jindou(Shanghai Marine Equipment Research Institute,Shanghai 200031,China)

机构地区：[1]上海船舶设备研究所,上海200031

出　　处：《船舶工程》2021年第12期110-114,171,共6页Ship Engineering

摘　　要：通过宏观分析、微观形貌分析、能谱分析和金相分析等方法,同时结合水动力数值模拟计算,对某调距桨桨叶叶根螺栓的损伤进行研究。结果表明,该调距桨在运行时,叶根螺栓处的水动力载荷较大,且存在空泡现象,导致叶根螺栓空泡损伤和空穴腐蚀。根据损伤原因制定相应的整改措施,可为船舶推进装置设计提供参考。The damage of blade root bolt of a pitch control propeller was studied by means of macroscopic analysis,microscopic morphology analysis,energy spectrum analysis and metallographic analysis,hydrodynamic numerical simulation calculation.The reason of the cavitation damage and corrosion is that the loading of hydrodynamic force is large and there is cavitation at the blade bolt when the CPP is working.Optimizing conclusions are shown based on damage reasons.The result can provide reference for propeller design.

关 键 词：调距桨 叶根螺栓 空泡 机理分析 数值模拟 

分 类 号：U661.43[交通运输工程—船舶及航道工程]