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| 多点数字化拉形成形性能的数值模拟分析 | |
| 引用本文： | 张传敏,刘伟,陆贵友,付文智,李明哲.多点数字化拉形成形性能的数值模拟分析[J].机械设计与制造,2009(2). |
| 作者姓名： | 张传敏 刘伟 陆贵友 付文智 李明哲 |
| 作者单位： | 1. 吉林大学,珠海学院机电工程系,珠海,519041;吉林大学辊锻工艺研究所,长春,130022 2. 河南工业大学,机电工程学院,郑州,450007 3. 中国人民解放军装甲兵技术学院,长春,130117 4. 吉林大学辊锻工艺研究所,长春,130022 |
| 摘 要： | 以鞍形曲面蒙皮件为例,对多点数字化拉形过程进行了数值模拟分析.通过模拟所得到的最佳水平预拉力与实际拉形工艺中通过经验公式确定的值相符,验证了算法的准确性.从材料、板厚、曲面形状和变形程度等方面入手分析多点数字化拉形的成形性能,结果表明:随着板料厚度减小、变形程度增大,板料起皱的趋势增大,并且不同的曲面形状及材料对板料的成形结果都有影响.同时给出了临界变形量极限图.研究结果为多点数字化拉形技术的实用化提供了重要依据. |
| 关 键 词： | 多点拉形 数值模拟 飞机蒙皮 成形性能 起皱 |
Numerical simulation on forming property in multi-point digitized stretch-forming |
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| ZHANG Chuan-min,LIU Wei,LU Gui-you,FU Wen-zhi,LI Ming-zhe.Numerical simulation on forming property in multi-point digitized stretch-forming[J].Machinery Design & Manufacture,2009(2). | |
| Authors: | ZHANG Chuan-min LIU Wei LU Gui-you FU Wen-zhi LI Ming-zhe |
| Affiliation: | 1Department of electromechanical engineering;Zhuhai school;Jilin University;Zhuhai 519041;China;2School of electromechanical engineering;Henan University of Technology;Zhengzhou 450007;China;3Institute of armoured forces technology;Chinese people's liberation army;Changchun 130117;China;4Roll forging institute;Changchun 130022;China |
| Abstract: | Takethecaseofthesaddle skin parts,the multi-point digitized stretch-forming processes were analyzed by numerical simulation.The optimal horizontal pulling force obtained accord with value received by empirical equation in practical stretch-forming technology,so the accuracy of algorithm was tested.Forming property was analyzed with different materials,thickness,shape of curved face and deformation extent.The results showed that the tendency of wrinkling on sheet metal is enlarged when thickness is little an... |
| Keywords: | Multi-point stretch-forming Numerical simulation Airplane skin Forming property Wrinkling |
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