| 直缝焊管开口孔型中轧辊与管坯间的接触压力分布 |
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| 引用本文： | 杨楠,陈大融,孔宪梅.直缝焊管开口孔型中轧辊与管坯间的接触压力分布[J].清华大学学报(自然科学版),2000,40(5):76-79. |
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| 作者姓名： | 杨楠 陈大融 孔宪梅 |
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| 作者单位： | 清华大学,精密仪器与机械学系,摩擦学国家重点实验室,北京,100084 |
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| 基金项目： | 国家自然科学基金项目!(59875046) |
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| 摘 要： | 为确定直缝焊管中轧辊与管坯间的接触压力分布规律 ,采取全息光弹性方法对该问题进行实验研究 ,并且利用有限元方法进行模拟计算 ,最终得出直缝焊管开口孔型轧辊与管坯间接触压力的分布规律 :管坯在开口孔型中处于弯曲成型阶段时 ,下轧辊与管坯的接触压力分布局限于轧辊的两侧 ;上轧辊与管坯的接触压力分布是以轧辊中点为界分为两个部分 ,每个部分内接触压力近似呈三角形分布。管坯在开口孔型中处于弯曲成型阶段时 ,接触压力分布是在弯曲成型阶段压力分布基础上中部叠加了一个挤压力
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| 关 键 词： | 直缝焊管 接触压力 光弹性方法 有限元方法 |
| 修稿时间： | 1999-09-10 |
Contact pressure between roller and pipe blank of the longitudinally welded pipe open pass |
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| YANG Nan,CHEN Darong,KONG Xianmei.Contact pressure between roller and pipe blank of the longitudinally welded pipe open pass[J].Journal of Tsinghua University(Science and Technology),2000,40(5):76-79. |
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| Authors: | YANG Nan CHEN Darong KONG Xianmei |
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| Abstract: | Holo photoelatic experiments and finite element analysis were used to investigate the distribution of the contact pressure between rollers and a pipe blank. Analysis of the open pass showed that during bending the contact pressure on the lower roller occurs only on two sides of the roller. The contact pressure on the upper roller is divided into two triangular shape parts. During extrusion, an extrusion force is added to the contact pressure that occurs during bending. |
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| Keywords: | longitudinally welded pipe contact pressure holo photoelastic method finite element method |
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