Adaptive Control of Additive Manufacturing Equipment Based on Air Bearing Positioning

Abstract

Abstract The air bearing guide rail is used as the three-dimensional positioning mechanism of additive manufacturing. However, in the high acceleration and high speed high dynamic motion, it is easy to cause the residual vibration of the system, damage the positioning accuracy of the system and increase the stability time of the system. Therefore, under the condition that the expected dynamic and static performance of additive manufacturing equipment is controllable, the robust adaptive control is used to compensate manufacturing error and environmental disturbance. According to Lyapunov stability theory, the established controller is adjusted to ensure the global asymptotic stability of the whole control system, so as to improve the system reliability and robustness to parameter changes.