Adaptive interval type-2 FNN enhanced fixed-time SMC for robust motion of piezoelectric stack actuators

Xuchen Wang, Yu Jin, Yixiao Yang, Huazhou Kang, Xiaofeng Yang, Yang Xu, Yuping Liu, Academy for Engineering and Technology, Fudan University, Shanghai Engineering Research Center of Ultra-Precision Motion Control and Measurement, Fudan University, School of Microelectronics, Fudan University, Centre for Research in Information and Communication Technologies, University of Granada

Journal of Vibration and Control

Published online on January 30, 2026

Abstract

Journal of Vibration and Control, Ahead of Print.
This paper introduces a novel control strategy for precise motion control of piezoelectric stack actuators (PSAs) under load variations, stochastic disturbances, and model uncertainties. The approach combines fixed-time, nonsingular terminal sliding mode ...