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Model Based Feed-Rate Optimization for Machine Tool Trajectories

机译:基于模型的机床轨迹进给率优化

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A feed-rate optimization algorithm minimizes the process time for a given geometry while respecting the boundary conditions determined by the machine's properties. The algorithm presented here can manage boundaries based on a machine model. It uses a direct method and formulates a discrete minimum time optimal control problem which can be solved with a standard solver for optimization problems. Additionally, trajectory generation algorithms for under-determined kinematic systems are discussed. A promising approach separates a given trajectory at the tool center point (TCP) into two trajectories for two serially arranged linear subsystems. The separation is such that the excitation of the machine is minimized. This work presents a compensation method to reduce path deviation caused by cross-talk which differs from the conventional reduction of dynamics.
机译:进给率优化算法可在考虑机床性能决定的边界条件的同时,将给定几何形状的加工时间降至最低。此处介绍的算法可以基于机器模型管理边界。它使用直接方法并制定了离散的最小时间最优控制问题,可以使用标准求解器来解决优化问题。此外,讨论了运动系统欠定的轨迹生成算法。一种有前途的方法将工具中心点(TCP)的给定轨迹分为两个串联的线性子系统的两个轨迹。这种分离使得电机的励磁最小化。这项工作提出了一种补偿方法,以减少由串扰引起的路径偏离,这与传统的动态降低方法不同。

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