| VTL型数控蒙皮拉形机加载轨迹设计 |
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| 引用本文： | 李小强,宋楠,吴志敏,李东升. VTL型数控蒙皮拉形机加载轨迹设计[J]. 塑性工程学报, 2012, 19(4): 49-55 |
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| 作者姓名： | 李小强 宋楠 吴志敏 李东升 |
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| 作者单位： | 1. 北京航空航天大学机械工程及自动化学院 北京 100191
2. 三一电气有限公司,北京,102206 |
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| 基金项目： | 国家自然科学基金资助项目，航空科学基金资助项目 |
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| 摘 要： | 针对VTL型数控蒙皮拉形机建立三维数字化模型,并对其进行机构运动分析。根据蒙皮拉形变形特点,提出一种拉形加载轨迹设计方法。基于应变控制设计出执行钳口运动轨迹,并根据拉形机机构运动规律,将执行钳口运动轨迹转化成拉形机驱动机构运动参数。采用CAA技术在CATIA平台上开发了相应的加载轨迹设计软件;以柱形蒙皮为例,利用开发的软件设计加载轨迹,通过有限元模拟和试验,验证了轨迹设计的合理性。
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| 关 键 词： | 飞机蒙皮 加载轨迹 数控拉形 |
Design of loading trajectory for VTL numerical control stretch forming machine |
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| LI Xiao-qiang , SONG Nan , WU Zhi-min , LI Dong-sheng. Design of loading trajectory for VTL numerical control stretch forming machine[J]. Journal of Plasticity Engineering, 2012, 19(4): 49-55 |
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| Authors: | LI Xiao-qiang SONG Nan WU Zhi-min LI Dong-sheng |
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| Affiliation: | 4(School of Mechanical Engineering and Automation,Beihang University,Beijing 100191 China) WU Zhi-min3(SANY Electric Co.,Ltd.,Beijing 102206 China) |
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| Abstract: | Based on VTL numerical control stretch forming machine introduced from abroad,3D digital model was built and mechanism motions were analyzed.For stretch forming process of aircraft skin,a loading trajectory design method was given.Firstly,jaw trajectory was designed using deformation control,which was then translated to driven parameters according to the rules of the stretching machine.And loading trajectory design software was developed on the platform of CATIA using CAA technology.Finally,detailed design processes of loading trajectory for stretch forming of cylindrical skin were provided as an example.The feasibility of the loading trajectory design methods was verified by the FE simulation and experiments carried out. |
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| Keywords: | aircraft skin loading trajectory numerical control stretch forming |
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