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基于数字化的蒙皮拉形加载轨迹优化与应用
英文标题:Optimization and application of loading trajectory in stretch forming of skin based on digital
作者:谢洪志 王玲 赵天章 金龙 李卫东 
单位:沈阳飞机工业(集团)有限公司 沈阳航空航天大学 北京航空航天大学 
关键词:蒙皮 拉形 加载轨迹 数字化 减薄 贴模 
分类号:V260; TG386
出版年,卷(期):页码:2021,46(1):56-59
摘要:

 针对飞机平尾前缘蒙皮零件,提出了利用数字化的方法进行拉形加载轨迹的优化思路。首先,计算出零件成形所需的拉伸率和包覆角,应用飞机蒙皮拉形工艺设计与制造系统对加载轨迹进行仿真,优化得到了成形精度高的钳口运动轨迹;其次,将运动轨迹转化为边界条件,利用Pamstamp有限元模拟分析了拉形后的减薄和贴模情况,以说明优化后的加载轨迹的合理性;最终,获得了分两次拉形的加载轨迹,并自动生成设备钳口的拉伸运动轨迹。利用厚度为3.5 mm的2A12铝合金O状态板料进行了拉形试验,发现成形零件的厚度均匀(3.18~3.29 mm)、贴模良好,成功地避免了成形缺陷的产生,验证了数字化加载轨迹优化思路的可行性,为智能化精确制造技术的开发奠定了基础。

 For the skin parts of flat tail leading edge for plane, the optimization idea on loading trajectory in stretch forming by digital method was proposed. Firstly, the stretching rate and covering angel required for part forming were calculated, then the loading trajectory was simulated  by using the stretch forming process design and manufacture system for plane skin, and an optimized jaw motion trajectory with high forming accuracy was obtained. Secondly, the motion trajectory was transformed to boundary conditions. The thinning and sticking mold conditions were analyzed by Pam-stamp finite element simulation after stretch forming to show the rationality of the optimized loading trajectory. Finally, the loading trajectory with twice stretch forming was proposed, and the motion trajectory of stretch forming for equipment jaw was automatically generated. The stretch forming test was carried out using the 2A12 aluminum alloy sheet material of O status with the thickness of 3.5 mm. The results show that the thickness distribution of formed part is uniform (3.18-3.29 mm), the effect of sticking mold is better, and there is no forming defects. It verifies the feasibility of this optimization idea on loading trajectory based on digital, and it lays a foundation for the development of intelligent accurate manufacturing technology. 

基金项目:
基金项目:国家自然科学基金资助项目(51605310)
作者简介:
作者简介:谢洪志(1985-),男,学士,高级工程师 E-mail:xhz_0920@163.com
参考文献:

 [1]张彦敏, 周贤宾. 飞机蒙皮拉伸成形工艺参数优化[J]. 航空学报, 2006,(6): 1203-1208.


Zhang Y M, Zhou X B. Parameter optimization in aircraft skin stretch forming process[J]. Acta Aeronautica et Astronautica Sinica, 2006,(6): 1203-1208.

[2]侯红亮, 余肖放, 曾元松. 国内航空钣金装备技术现状与发展[J]. 航空制造技术, 2009,(1): 34-39.

Hou H L, Yu X F, Zeng Y S. Current and development status of sheet metal equipment and technology in Chinese aviation industry[J]. Aeronautical Manufacturing Technology, 2009,(1): 34-39.

[3]Oding S S, Burdakova L A. Shaping of signvariable curvature skins by stretchforming[J]. Izvestiya VUZ. Aviatsionnaya Tekhnika English Translation, 1991, 34(1): 47-51.

[4]杨泽明, 王斌, 陈文. 飞机蒙皮零件数控精确拉形技术应用研究[J]. 塑性工程学报, 2019, 26(2): 138-144.

Yang Z M, Wang B, Chen W. Research on application of precision CNC stretch forming on aircraft skin components[J]. Journal of Plasticity Engineering, 2019, 26(2): 138-144.

[5]李东升, 罗红宇, 王丽丽, 等. 飞机蒙皮的数字化成形制造技术[J]. 塑性工程学报, 2009, 16(1): 82-87.

Li D S, Luo H Y, Wang L L, et al. Numerical forming technology of the aircraft skin[J]. Journal of Plasticity Engineering, 2009, 16(1): 82-87.

[6]朱明华, 王文斌, 李小强, 等. 大型客机钣金数字化柔性精准成形技术[J]. 南京航空航天大学学报, 2011, 43(2): 216-221.

Zhu M H, Wang W B, Li X Q, et al. Digital, flexible and precise forming technology of sheet metal in large airliner[J]. Journal of Nanjing University of Aeronautics and Astronautics, 2011, 43(2): 216-221.

[7]李卫东. 飞机蒙皮数字化拉形系统的研究与应用[D]. 北京:北京航空航天大学, 2007.

Li W D. Research and Application of Digital Stretch Forming System for Aircraft Skin[D]. Beijing:Beihang University, 2007.

[8]韩金全, 万敏, 陈雪梅, 等. 飞机复杂蒙皮拉形工艺参数优化设计[J]. 塑性工程学报, 2009, 16(6): 96-101.

Han J Q, Wan M, Chen X M, et al. Optimization of process parameters in stretch forming of aircraft complex skin[J]. Journal of Plasticity Engineering, 2009, 16(6): 96-101.

[9]彭静文, 李卫东, 万敏, 等. 机翼前缘蒙皮拉形工艺参数优化与试验[J]. 塑性工程学报, 2011, 18(4): 74-78.

Peng J W, Li W D, Wan M, et al. Optimization and experimental research of processing parameters in stretch forming of wing leading edge skin[J]. Journal of Plasticity Engineering, 2011, 18(4): 74-78.

[10]张彦敏, 周贤宾. 蒙皮拉形加载轨迹优化[J]. 北京航空航天大学学报, 2007,(2): 201-205.

Zhang Y M, Zhou X B. Optmization of loading trajectory in skin stretch forming process[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007,(2): 201-205.

[11]李小强, 宋楠, 吴志敏, 等. 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.

Li X Q, Song N, Wu Z M, et al. Design of loading trajectory for VTL numerical control stretch forming machine[J]. Journal of Plasticity Engineering, 2012, 19(4): 49-55.

[12]韩志仁, 周叔阳, 刘宝明, 等. 基于ANSYS的蒙皮拉形钳口轨迹优化技术研究[J]. 沈阳航空航天大学学报, 2017, 34(1): 15-19.

Han Z R, Zhou S Y, Liu B M, et al. Research on loading trajectory optimization technology in stretch forming for aircraft skin based on ANSYS[J]. Journal of Shenyang Aerospace University, 2017, 34(1): 15-19.
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