| 型材2D张臂式拉弯机构运动仿真及夹钳轨迹自动生成 |
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| 引用本文： | 金朝海,周贤宾.型材2D张臂式拉弯机构运动仿真及夹钳轨迹自动生成[J].中国机械工程,2006(Z1). |
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| 作者姓名： | 金朝海 周贤宾 |
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| 作者单位： | 北京航空航天大学 北京航空航天大学 北京 100083 |
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| 基金项目： | 国家自然科学基金资助项目(50505001) |
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| 摘 要： | 针对法国ACB公司的型材2D张臂式拉弯设备,基于MATLAB开发了型材拉弯机构运动仿真系统。该系统能够按照控制型材变形量的模式生成夹钳的空间位置轨迹并对机构的运动进行动画仿真,同时可以输出动力显式有限元模拟软件所需的夹钳位移(或速度)边界条件,解决了位移控制模式下型材拉弯有限元模拟时夹钳轨迹难以设计的问题。根据有限元模拟计算的结果可以对夹钳的运动轨迹进行不断调整,直到获得满意的结果,从而实现夹钳轨迹的优化。
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| 关 键 词： | 型材 张臂式拉弯 机构仿真 有限元模拟 优化 |
Profile 2D Stretch-wrap Bending Machine Animation and Jaw Trajectory Automatic Generation |
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| Jin Chaohai Zhou Xianbin Beihang University,Beijing.Profile 2D Stretch-wrap Bending Machine Animation and Jaw Trajectory Automatic Generation[J].China Mechanical Engineering,2006(Z1). |
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| Authors: | Jin Chaohai Zhou Xianbin Beihang University Beijing |
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| Affiliation: | Jin Chaohai Zhou Xianbin Beihang University,Beijing,100083 |
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| Abstract: | A machine animation system was developed based on MATLAB to simulate 2D stretch-wrap bending process of profiles under the displacement control forming mode. The system is able to generate the trajectory of jaws according to given deformation level and output the displacement or velocity boundary conditions for dynamic-explicit finite element simulation of the bending process, which are difficult to determine manually.Based on the simulation, the trajectory of jaws can be adjusted iteratively until the optimization is realized. |
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| Keywords: | profile stretch-wrap bending machine animation numerical simulation optimization |
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