| 地下卷取机助卷辊支承框架动力分析 |
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| 引用本文： | 王哲. 地下卷取机助卷辊支承框架动力分析[J]. 武汉科技大学学报(自然科学版), 1996, 0(2) |
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| 作者姓名： | 王哲 |
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| 摘 要： | 本文以引起地下卷取机产生事故的主要原因即冲击振动为研究对象，采用ＳＡＰ－５程序对该卷取机事故最多的１号助卷辊支承框架进行了有限元模态分析和结构动力计算。根据计算结果对支承框架进行了共振分析及经常出现裂纹处的应力分析，并将计算应力与测试应力进行了比较，探讨了框架产生裂纹的原因，对框架的动强度作出了比较接近实际情况的评价。
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| 关 键 词： | 卷取机；有限元；动力学 |
A DYNAMIC STRENGTH ANALYSIS OF THE WRAPPER ROLL ARM ON DOWNCOILER IN HOT STRIP MILL |
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| Wang Zhe. A DYNAMIC STRENGTH ANALYSIS OF THE WRAPPER ROLL ARM ON DOWNCOILER IN HOT STRIP MILL[J]. Journal of Wuhan University of Science and Technology(Natural Science Edition), 1996, 0(2) |
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| Authors: | Wang Zhe |
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| Abstract: | In this paper,impaction vibration,the primary cause of downcoiler accidents,has been studied in greater detail as a main problem,which includes finite element model analysis and dynamic strength calculation of structures on No.1 wrapper roll arm by use of SAP 5 program.In accordance with these measurements and mumerical calculations,further resonance and stress analyses about this arm,particularly at cracks on it,have been made.As a result of a comparision between calculating and measuring stress,the reason for cracks occurring has been analysed.Finally,the author evaluates the dynamic strength of the arm in relatively keeping with reality. |
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| Keywords: | roll finite element dynamic |
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