Simultaneous optimization in ultra-precision motion systems
Sign Up to like & getrecommendations! Published in 2019 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-018-02191-6
Abstract: In ultra-precision motion systems, vibration has non-negligible influence on motion performance, especially when these systems are getting more lightweight and more flexible. Research on simultaneous optimization of structural and controller design has been conducted to… read more here.
Keywords: ultra precision; motion; precision motion; motion systems ... See more keywords
Identification and adaptive robust precision motion control of systems with nonlinear friction
Sign Up to like & getrecommendations! Published in 2018 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-018-4610-6
Abstract: Both accurate system identification and high-performance controller design are necessary for precision motion systems. This paper first considers the unavoidable issue of nonlinear friction effect on traditional frequency identification widely used by practicing engineers and… read more here.
Keywords: precision motion; adaptive robust; nonlinear friction; performance ... See more keywords
Nonlinear vibration analysis in precision motion stage with PID and time-delayed feedback controls
Sign Up to like & getrecommendations! Published in 2020 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-020-05779-0
Abstract: We investigate the control of friction-induced vibration in a precision motion stage under the effect of the LuGre friction dynamics. We consider a lumped parameter model of the precision motion stage with PID and linear… read more here.
Keywords: analysis; motion stage; precision motion; motion ... See more keywords
Output-feedback control of precision motion systems with uncertain nonlinearities
Sign Up to like & getrecommendations! Published in 2021 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2020.107483
Abstract: Abstract We propose output-feedback tracking control with an extended high-gain observer-based feedback control for a class of precision motion systems that include unknown rate-dependent hysteresis nonlinearities with linear dynamics. The proposed control system has a… read more here.
Keywords: output feedback; precision motion; control;
Precision Motion Control of Piezoelectric Nanopositioning Stage With Chattering-Free Adaptive Sliding Mode Control
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Automation Science and Engineering"
DOI: 10.1109/tase.2016.2575845
Abstract: This paper presents the precision motion control of a piezoelectric nanopositioning stage using a new scheme of adaptive sliding mode control with uncertainty and disturbance estimation (ASMC-UDE). One uniqueness of the reported ASMC-UDE scheme is… read more here.
Keywords: precision motion; piezoelectric nanopositioning; motion control; control ... See more keywords
Nonlinearity Compensation and High-Frequency Flexibility Suppression Based RIC Method for Precision Motion Control Systems
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Informatics"
DOI: 10.1109/tii.2022.3158944
Abstract: For precision motion systems widely applied in industrial manufacturing equipments, it is critical to achieve both high trajectory tracking accuracy and superior disturbance rejection ability. In this article, a novel nonlinearity compensation and high-frequency flexibility… read more here.
Keywords: high frequency; precision motion; compensation; motion ... See more keywords