Abstract
Piezoelectric actuators (PEAs) are favorable choices in the nanopositioning applications due to their high stiffness, fast response and ultrahigh precision. However, the undesired hysteresis nonlinearity in PEAs can dramatically degrade the positioning/tracking performance. In this paper, a Takagi-Sugeno (T-S) fuzzy system-based approach of identification for rate-dependent hysteresis is proposed. First, a novel hysteretic operator is proposed to describe the change tendency and extract the dynamic property of rate-dependent hysteresis. Then, the proposed hysteretic operator is added into the inputs to construct the expanded input space. Thus, it may transform the multi-valued mapping of hysteresis into one-to-one mapping, which enables the T-S fuzzy system to model the hysteresis. Finally, the experimental results are presented to illustrate the potential of the proposed modeling technique.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
