船舶艉轴机械密封的热-热应力耦合研究  

Coupling Analysis of Heat-thermal Stress on Stern-Shaft Mechanical Seal

作　　者：陈汇龙[1] 林清龙[1] 彭正东[1] 王强[1] 李雯瑜[1] 吴荣珍[1] 

机构地区：[1]江苏大学能源与动力工程学院,镇江212013

出　　处：《船舶工程》2011年第6期41-44,共4页Ship Engineering

基　　金：江苏省自然科学基金项目(BK2007095);江苏省高校自然科学基础研究项目(06KJB480019);江苏高校优势学科建设工程资助项目(苏财教[2011]8号)

摘　　要：为了获得艉轴机械密封比较合理的材料配对、温度和热应力分布规律,基于有限元分析软件ANSYS,采用硬质合金、氧化铝陶瓷、斯太立特、铜合金和细粒碳石墨五种材料进行配对并运用直接耦合法进行了热-热应力耦合计算和分析.研究表明:不论采用何种材料配对,端面温度沿着半径方向先上升后下降,总体趋势是内径处的端面温度高于外径处的;不同的材料配对对于端面温度值和热应力有着显著的影响,其中硬质合金与细粒碳石墨的配对比较合理;并且从Von-Mises应力计算云图中分析发现了旋转环和静止环热应力主要集中的位置.In order to obtain rational material collocation and regularity of distribution of temperature and thermal stress on stern-shaft mechanical seal,based on ANSYS software,the paper calculates and researches the heat-thermal stress by the method of direct coupling,with the collocation of five materials such as hard alloy,alumina ceramics,satellite,copper alloy and fine grain of carbon graphite.The research demonstrates that with whatever collocation,the seal surface temperature declines after rising along the direction of radius while the temperature on inner diameter is higher than that on external diameter.There are obvious influence on the surface temperature and thermal stress by using different material collocation.Furthermore,the material collocation between copper alloy and fine grain of carbon graphite is rational.According to Von-Mises stress calculation of convective,the main location of thermal stress on rotation and stationary ring are found.

关 键 词：艉轴机械密封 热应力 温度 耦合 材料 

分 类 号：U664.6[交通运输工程—船舶及航道工程] TH136[交通运输工程—船舶与海洋工程]