| 多层预紧圆挤压筒的数值模拟和理论验证 |
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| 引用本文： | 王匀,刘全坤,王雷刚.多层预紧圆挤压筒的数值模拟和理论验证[J].机械工程师,2002(12):9-12. |
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| 作者姓名： | 王匀 刘全坤 王雷刚 |
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| 作者单位： | 1. 燕山大学,机械工程学院,河北,秦皇岛,066001
2. 合肥工业大学,材料科学与工程学院,安徽,合肥,230009 |
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| 基金项目： | 国家自然科学基金(50075022)，安徽省教委自然科学基金重点项目(2000J1169ZB) |
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| 摘 要： | 大型挤压机用圆挤压筒一般都采用组合式结构以提高其强度。文中应用接触单元对组合式圆挤压筒在有无工作压力的受力情况进行了数值模拟，获得了应力以及位移的分布状部，并和由Lame公式所得的理论解进行了比较和误差分析，结果非常吻合，为多层套挤压筒设计提供了依据。
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| 关 键 词： | 组合式圆挤压筒 数值模拟 Lame公式 接触单元 |
| 文章编号： | 1002-2333(2002)12-0009-04 |
Numerical Simulation and Theoretical Verification of Multi-layer Prestressed Cylinder |
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| WANG Yun ,LIU Quan-kun ,WANG Lei-gang.Numerical Simulation and Theoretical Verification of Multi-layer Prestressed Cylinder[J].Mechanical Engineer,2002(12):9-12. |
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| Authors: | WANG Yun LIU Quan-kun WANG Lei-gang |
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| Affiliation: | WANG Yun 1,LIU Quan-kun 2,WANG Lei-gang 2 |
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| Abstract: | To increase the strength of extrusion cylinder for large extruder,we need use multi-shrinking structure.In this paper,multi-shrinking extrusion cylinder with work pressure or not is analysed with contact element,and the distribution of stress and displacement are presented.Furthermore,the numerical results are compared with theoretical solution of Lame formula.The comparison and error analysis show the complete consistence between them.Then the design of extrusion cylinder can use the relating result. |
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| Keywords: | Multi-shrinking extrusion cylinder Numerical simulation Lame formula Contact element |
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