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simulation_push

非抓握操作(Nonprehensile Manipulation)-push的仿真,仿真对象为一个正方形的方块,使用单个(支持多个)接触点进行操作,操作过程中摩擦状态可以在固定,向上滑动,向下滑动中切换。数值仿真使用四阶龙格库塔法,差分动力学模型参考[1]。在数值仿真的基础上,基本实现了基于混合整数规划求解器Gurobi的MPC控制,使用了yalmip进行MPC问题的建立,并尝试了接触边切换控制。在CoppeliaSim中搭建动力学场景,进行了控制器的验证,在仿真中控制器部分采用通讯-控制双线程模式,避免互相干扰。所有代码都在matlab中实现。

数值计算改进方向: 1、被推动物体的动态参数(惯性参数和外力约束等)的变化与辨识 2、多个接触点 3、加入噪声和干扰 4、接触点可以在空中,但是有过渡过程

数值仿真 CoppeliaSim仿真

[1] Hogan F R. Reactive manipulation with contact models and tactile feedback[D]. Massachusetts Institute of Technology, 2020.

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