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Ultra-precision stage control based on friction model of non-resonant ultrasonic motor

机译:基于非谐振超声波电动机摩擦模型的超精密级控制

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This paper presents a friction model-based ultra-precision stage control that introduces the non-resonant ultrasonic motor (NRUSM). At first, the friction characteristic is experimentally evaluated as a function of the stage position. Next, the friction model is adopted for the proposed continuous-pass tracking control design, and then the efficiency of the model-based control is verified by positioning experiments. Finally, measuring the time variation of the static friction characteristics, the on-line identification method for the control system is proposed.
机译:本文介绍了一种基于摩擦模型的超精密阶段控制,引入了非谐振超声波电机(NRUSM)。首先,将摩擦特性作为阶段位置的函数进行实验评估。接下来,采用摩擦模型来采用所提出的连续通行跟踪控制设计,然后通过定位实验验证基于模型的控制的效率。最后,测量静态摩擦特性的时间变化,提出了控制系统的在线识别方法。

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