| 圆锯片辊压适张后应力分布的有限元分析 |
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| 引用本文： | 边柯柯,赵东,胡诗宇.圆锯片辊压适张后应力分布的有限元分析[J].力学与实践,2005,27(6):61-63,72. |
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| 作者姓名： | 边柯柯 赵东 胡诗宇 |
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| 作者单位： | 北京林业大学工学院,北京,100083;北京林业大学生物科学与技术学院,北京,100083 |
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| 基金项目： | 北京林业大学“质量工程”教学改革项目资助. |
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| 摘 要： | 分析了圆锯片辊压适张后的应力分布，并与国产圆锯片辊压适张后X射线衍射法的实验结果进行了对比，考虑到特定辊压工艺和不同锯片材质对适张效果的影响，以弹性力学中接触理论为基础，应用ANSYS软件的塑性分析法，建立了适张后应力状态的弹塑性分析模型。该模型引入影响辊压适张度的主要因素：锯片基材塑性应力应变关系，辊轮结构、转速，以及辊压载荷、位置和次数，结果表明应力分布的有限元计算结果与实验结果比较一致。
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| 关 键 词： | 圆锯片 辊压适张 有限元法 |
| 收稿时间： | 2004-10-25 |
| 修稿时间： | 2004-10-252005-09-02 |
FINITE ELEMENT ANALYSIS OF THE RESIDUAL STRESSES IN CIRCULAR SAW BLADE INDUCED BY ROLL TENSIONING |
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| BIAN Keke,ZHAO Dong,HU Shiyu.FINITE ELEMENT ANALYSIS OF THE RESIDUAL STRESSES IN CIRCULAR SAW BLADE INDUCED BY ROLL TENSIONING[J].Mechanics and Engineering,2005,27(6):61-63,72. |
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| Authors: | BIAN Keke ZHAO Dong HU Shiyu |
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| Institution: | School of Technology, Beijing Forestry University, Beijing 100083, China;2.College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | Roll tensioning is a prestressing procedure commonly used to increase the stability of circular saws. This paper describes how the finite element method can be used to analyze the residual stresses induced by roll tensioning. As the results measured by X-ray disagree with the calculations on the basis of three-region theoretical model, this paper iatroduces a new model, in which the main parameters affecting roll tensioning include plastic constitutive relationship of the material, structure and rotational speed of roller, applied pressure, tensioning radius, times of tensioning. The results of residual stresses agree with experimental measurements. |
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| Keywords: | circular saw blade roll tensioning finite element method |
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