A modified Prandtl-Ishlinskii hysteresis model for modeling and compensating asymmetric hysteresis of piezo-actuated flexure-based systems

• Main Authors: Zhou, Chao, Yuan, Meng, Feng, Chen, Ang, Wei Tech
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Mechanical engineering; Asymmetric Hysteresis; Inverse Hysteresis
• Online Access: https://hdl.handle.net/10356/170773
• Institution: Nanyang Technological University

Piezo-actuated flexure-based systems are widely used in applications with high accuracy requirements, but the intrinsic hysteresis has a detrimental effect on the performance which should be compensated. Conventional models were presented to model this undesired effect using additional dead-zone operators. This paper presents a new approach using two sets of operators with a distributed compensator to model and compensate for the asymmetric system hysteresis based on inversion calculation with a simplified digitized representation. The experimental results validate the effectiveness of the proposed model in modeling and compensating the asymmetric system hysteresis.