摘要
卷筒是拉丝机主轴箱的组成部分,其内部采用窄缝式水冷结构,对拉丝机的冷却起重要作用。为分析卷筒在拉拔过程中的变形和受力,基于热力耦合有限元理论,建立了卷筒更加精确的热力耦合有限元模型,对其第一道次拉拔时的热力耦合效应进行了数值模拟,分析了温度场和热应力场对卷筒的影响,获得了热力耦合作用下卷筒的变形规律和Mises应力分布规律。利用数值模拟方法得到的结果更符合卷筒的实际工况,为卷筒的结构优化设计提供理论参考。
Drum is a component of spindle box in the wire-drawing machine, and its interior adapts the slit-type water-cooled structure, which plays an important role in the cooling process. In order to analyze the deforumtion and stresses of the drum during the drawing process, a more precise coupled thermal-mechanical finite element model is established based on the cou- pled thermal finite element theory. The first drawing coupled thermal effect is simulated, and influences of the temperature field and the thermal stress field on drum is analyzed. Then the deformation law and Mises stress distribution of the drum are obtained. The results show that the proposed numerical model is more accord with the actual working condition of the drum, which would provide a theoretical reference for the structure optimization design of drum.
出处
《机械研究与应用》
2017年第6期12-15,共4页
Mechanical Research & Application
关键词
卷筒
数值模拟
热应力场
热力耦合
drum
numerical simulation
thermal stress field
coupled thermal
