| 可重构柔性多点模具蒙皮拉形模面补偿算法 |
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| 引用本文： | 王丽丽,李东升,李小强,罗红宇.可重构柔性多点模具蒙皮拉形模面补偿算法[J].北京航空航天大学学报,2011,37(8):1011-1015,1020. |
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| 作者姓名： | 王丽丽 李东升 李小强 罗红宇 |
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| 作者单位： | 北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191 |
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| 基金项目： | 国家自然科学基金资助项目(50575010); 国家863计划资助项目(2007AA041905); 国防基础科研项目(B0520060440) |
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| 摘 要： | 针对单曲形蒙皮零件,建立了有限元数值模拟的离散模型和等效模型,通过对成形计算时间、垫层变形量和成形零件外形的比较,验证了等效模型的高效性和可靠性.为了消除垫层变形和板料回弹对成形精度的影响,采用有限元等效模型技术,基于位移调整法,提出了先进行板料回弹补偿再进行垫层变形补偿的模面补偿算法,并应用该算法分别对单曲形和双曲形蒙皮零件进行了拉形模面补偿分析.在得到的补偿模面上进行了单曲形和双曲形蒙皮零件成形试验,采用非接触光学测量系统进行数字化测量后,发现成形零件外形误差均在允许范围(±0.5 mm)之内,满足精度要求,验证了该模面补偿算法的有效性.
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| 关 键 词： | 模面补偿 回弹补偿 垫层变形补偿 可重构柔性多点模具 蒙皮拉形 |
| 收稿时间： | 2010-04-09 |
Die-face compensation algorithm in stretch forming of aircraft skin over reconfigurable compliant tooling |
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| Wang Lili Li Dongsheng Li Xiaoqiang Luo Hongyu.Die-face compensation algorithm in stretch forming of aircraft skin over reconfigurable compliant tooling[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(8):1011-1015,1020. |
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| Authors: | Wang Lili Li Dongsheng Li Xiaoqiang Luo Hongyu |
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| Institution: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | Two finite element models of a single curvature part,discrete and equivalent models of stretch forming over reconfigurable compliant tooling,were set up.The calculation times,rubber deformations and part shapes in two models were compared.The result shows the equivalent model is reliable and more efficient.To eliminate the influence of springback and the interpolator deformation on the part shape fidelity,a die-face compensation algorithm was proposed based on displacement adjustment method and equivalent m... |
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| Keywords: | die-face compensation springback compensation interpolator's deformation compensation reconfigurable compliant tooling stretch forming |
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