船舶艉轴密封装置动态环境下的热态性能模拟分析

摘要

The sealing ring in stern shaft sealing device is usually working in the state of continuous frictional contact,then the frictional heat will be generated on the sealing face,the temperature will rise and the thermal deformation of sealing face will appear.The temperature field model of the sealing ring was built by using the SolidWorks software,and the ANSYS 13.0 finite element software was adopted for numerical simulation in order to get the temperature field of the sealing ring under the condition of different spring compressions,the temperature distribution on the sealing face,the stress distribution and the dynamic characteristics of the time response.The results show that the temperature of the sealing ring rises with the increase of spring compression,the transient temperature will achieve the stable state in 0.5 h,and the value will meet the requirement of actually used temperature range.%船舶艉轴密封装置工作时,其密封环连续接触产生摩擦热,引起密封端面的温升以及热变形.通过SolidWorks软件建立密封环的温度场模型,采用ANSYS 13.0有限元分析软件,模拟不同弹簧压缩量下密封环的温度场,获得端面的温度分布、应力分布规律以及时间响应下的动态特性.研究结果表明,密封环温度随着弹簧压缩量的增加而升高；密封环的瞬时温度约0.5h可达到稳定状态,且不同弹簧压缩量下的密封环温度满足实际使用温度范围.