桌上冰球机器人对目标碰撞轨迹研究

Simulation Research on Ice Hockey Collision Prediction Based on LS-DYNA

冰球滑行过程中会与桌边产生碰撞,改变其原有的运行轨迹,增加了冰球轨迹预测的难度,进而增加了冰球轨迹预测算法的复杂度,使算法运行速度很慢,难以满足实时性的要求。针对这一问题,采用ANSYS/LS-DYNA显示非线性动力分析软件进行仿真,建立冰球碰撞轨迹预测模型,分析冰球碰撞过程中影响冰球运动状态的各个因素。通过仿真获得实验数据,并用MATLAB对获得的数据进行数据拟合,从而得到了一种碰撞函数关系作为冰球碰撞过程的算法。在VS2010+OpenCV平台上应用所得算法,并记录算法运行时间。仿真结果表明,算法能够准确预测冰球碰撞后的运动状态,并且算法运行速度能够满足实时性要求。

The collideing with the table exists in the process of hockey skating,, changes its original running track, increases the difficulty of the ice hockey trajectory prediction, and then increases the complexity of the ice hockey trajectory prediction algorithm, which makes the algorithm run slow and difficult to meet the requirements of real time. In order to solve this problem, the ANSYS/LS - DYNA display nonlinear dynamic analysis software was used to simulate the ice hockey collision trajectory prediction model and analyze the factors that affect the hockey movement in the process of hockey collision. The experimental data were obtained based on simulation, and the data obtained by MATLAB were fitted to the data, thus a collision function relationship was obtained as an algorithm for the ice hockey collision process. The algorithm was run on the VS2010 + OpenCV platform and the running time of the algorithm was recorded. The simulation results show that the algorithm can predict the motion state of ice hockey accurately, and the speed of the algorithm can meet the real-time requirement.