磨粒粒径对船舶机械密封装置静环磨损的影响研究  

Research on the effect of abrasive particle size on the wear of marine mechanical seal stationary ring

作　　者：喻家鹏 张雪冰[1] 王刚伟[1] 王斌[2] YU Jiapeng;ZHANG Xuebing;WANG Gangwei;WANG Bin

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064 [2]武汉理工大学船海与能源动力工程学院,湖北武汉430063

出　　处：《中国修船》2024年第6期52-55,61,共5页China Shiprepair

基　　金：国家重点研发计划(2022YFB3706200)。

摘　　要：针对服役条件下船舶机械密封装置磨粒磨损机制未知的难题,文章采用ANSYS和ABAQUS软件进行有限元磨损分析。将磨粒磨损过程简化为磨粒压入、磨粒划擦及磨粒卸载3个阶段,通过建立磨粒-静环磨损有限元模型,分析相同工况下磨粒粒径对静环磨损体积及残余应力的影响规律。仿真结果表明,粒径0.2 mm磨粒的磨损体积为3.0×10^(-4) mm^(3),大于粒径0.1 mm磨粒的磨损体积(1.1×10^(-4) mm^(3));粒径0.2 mm磨粒在静环上产生划擦磨损后的最大残余应力为372.3 MPa,大于粒径0.1 mm磨粒的最大残余应力(312.0 MPa)。研究结论表明:大粒径磨粒更容易导致低周期疲劳磨损。Aiming at the uncertainty of the wear mechanism for the abrasive particle on marine mechanical seal devices under operating conditions,this paper uses ANSYS and ABAQUS to conduct finite element analysis of the mechanical seal devices.This paper simplifies the abrasive particle wear process into three stages:abrasive particle indentation,abrasive particle scraping and abrasive particle unloading.By establishing the abrasive particle stationary ring finite element model,this paper analyzed the law of the effects of abrasive particle size on the wear volume and residual stress of the stationary ring under the same working condition.The simulation results showed that the wear volume of the 0.2 mm abrasive particle is 3.0×10^(-4) mm^(3) and is larger than that of the 0.1 mm particle(1.1×10^(-4) mm^(3)),and the 0.2 mm abrasive particle caused a maximum residual stress of 372.3 MPa on the static ring after scraping,which is larger than that of the 0.1 mm abrasive particle(312.0 MPa).The paper concluded that large particle sizes are more likely to lead to low cycle fatigue wear.

关 键 词：船舶机械密封装置 静环 磨粒 磨损 有限元分析 

分 类 号：U672[交通运输工程—船舶及航道工程]