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| 板材多点成形时摩擦边界条件的处理方法 | |
| 引用本文： | 李广权,李明哲,苏世忠,李淑慧,刘纯国,魏贞伟.板材多点成形时摩擦边界条件的处理方法[J].农业机械学报,1999,30(2):99-103. |
| 作者姓名： | 李广权 李明哲 苏世忠 李淑慧 刘纯国 魏贞伟 |
| 作者单位： | 1. 吉林工业大学辊锻工艺研究所,130025 长春市 2. 吉林工业大学研究生部 3. 吉林省粮食高等专科学校食品化工系,130062 长春市 |
| 基金项目： | 国家重点科技攻关项目,高校博士点基金 |
| 摘 要： | 提出了具有强烈弯曲效应的大应变，大位移与边界条件三重非线性空间曲壳的有限元列式和多点成形时库仑摩擦边界条件的处理方法引用经典的Ｊ２流动理论研究了马鞍面的多点模具成形和多点压机成形时金属的流动规律。 |
| 关 键 词： | 有限元法 板材 成形 |
TREATMENT OF FRICTION BOUNDARY CONDITION DURING MULTI-POINT FORMING PROCESS OF METAL PLATE |
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| Li Guangquan,Li Mingzhe,Su Shizhong,Li Shuhui,Liu Chunguo,Wei Zhenwei.TREATMENT OF FRICTION BOUNDARY CONDITION DURING MULTI-POINT FORMING PROCESS OF METAL PLATE[J].Transactions of the Chinese Society of Agricultural Machinery,1999,30(2):99-103. | |
| Authors: | Li Guangquan Li Mingzhe Su Shizhong Li Shuhui Liu Chunguo Wei Zhenwei |
| Institution: | Jilin University of Technology |
| Abstract: | A finite element procedure for shell is given, which can solve nonlinear problems with large strain, large displacement and complex boundary conditions. It is the first time that authors introduce the Coulomb friction law into multi point forming process and develop a method of dealing Coulomb friction boundary condition. According to the classic J 2 flow theory, two multi point forming processes i.e. multi point mode forming and multi point press forming are simulated. The results from multi point mode forming and multi point press forming are different obviously because of their different contact conditions. Meanwhile, the computed result is the same as that from the experiment. This means that the curved shell elements used in this finite element procedure conduced to a high accuracy solution. |
| Keywords: | Finite element methods Sheet Forming |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |