Robust Speed Control of Ultrasonic Motors Based on Deep Reinforcement Learning of A Lyapunov Function
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DOI: 10.1109/access.2022.3170995
Abstract: Speed control of ultrasonic motors (USM) needs to be precise, fast, and robust; however, this becomes a challenging task due to the nonlinear behavior of these motors including nonlinear response, pull-out phenomenon, and speed hysteresis.… read more here.
Keywords: speed; ultrasonic motors; speed control; control ... See more keywords
Analysis and Optimization of a Microgripper Driven by Linear Ultrasonic Motors
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DOI: 10.3390/mi13091453
Abstract: This paper presents the vibration response analysis and optimal structural design of a microgripper driven by linear ultrasonic motors (LUMs) dedicated to improving end-point positioning accuracy. Based on structural vibration theory, a parametric vibration response… read more here.
Keywords: ultrasonic motors; microgripper driven; driven linear; vibration ... See more keywords