| 液芯大压下轧机轧辊的热力耦合分析及疲劳寿命计算 |
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| 引用本文： | 孙登月,张远芳,查显文,刘文武,马会文,樊有勤.液芯大压下轧机轧辊的热力耦合分析及疲劳寿命计算[J].燕山大学学报,2011,35(1):40-45. |
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| 作者姓名： | 孙登月 张远芳 查显文 刘文武 马会文 樊有勤 |
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| 作者单位： | 1. 燕山大学,机械工程学院,河北,秦皇岛,066004
2. 中冶东方工程技术有限公司,河北,秦皇岛,066004 |
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| 基金项目： | 河北省自然科学基金资助项目 |
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| 摘 要： | 液芯大压下轧机的技术难点是保证轧辊在恶劣工况下的正常工作寿命,它是连续生产的保障。本文采用有限元法中热力耦合的分析方法模拟堆焊型和辊套型两种轧辊的轧制过程,轧辊材料为综合力学性能较好的H13(4Cr5MoV1Si),计算其温度场、应力场和应变场。采用高温应变疲劳寿命法计算辊面产生疲劳裂纹寿命,应用断裂力学理论计算其裂纹扩展的寿命。经计算,辊套型轧辊热应力低于堆焊型轧辊,并且拥有更长的工作寿命。
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| 关 键 词： | 液芯大压下 轧辊 有限元分析 弹塑性 热力耦合 疲劳寿命 |
Analysis and calculation of thermal-structural coupling and fatigue life of liquid core heavy reduction rolling mill's roller |
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| SUN Deng-yue,ZHANG Yuan-fang,ZHAXian-wen,LIU Wen-wu,MA Hui-wen,FAN You-qin.Analysis and calculation of thermal-structural coupling and fatigue life of liquid core heavy reduction rolling mill''s roller[J].Journal of Yanshan University,2011,35(1):40-45. |
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| Authors: | SUN Deng-yue ZHANG Yuan-fang ZHAXian-wen LIU Wen-wu MA Hui-wen FAN You-qin |
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| Institution: | SUN Deng-yue1,ZHANG Yuan-fang1,ZHA Xian-wen2,LIU Wen-wu2,MA Hui-wen2,FAN You-qin2(1.College of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China,2.BERIS Engineering and Research Corporation,China) |
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| Abstract: | The key technology of the liquid core heavy reduction rolling mill is the roller's normal life cycle in a poor work condition,which is the guarantee of continuous production.The built-up welding roller and roll-sleeve type roller are simulated and calculated in this paper,using material H13(4Cr5MoV1Si) which has better synthetical mechanical properties.Based on the metal cumulate damage theory and rupture mechanics theory,the forming and extending rules of the roll's fatigue cracks are studied,and the fatig... |
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| Keywords: | liquid core heavy reduction roller finite element analysis elastic-plastic thermal-structural coupling fatigue life |
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