Enhanced chattering reduction in re-entry phase of RLV using disturbance observer–based fractional-order ISMC with fixed-time convergence

Rajasree Sarkar, Syed Muhammad Amrr, Abdullah Algethami, Arunava Banerjee, Department of Mechanical Engineering, University of Minnesota, Instrumentation Engineering Department, King Fahd University of Petroleum , Saudi Arabia, Interdisciplinary Research Center for Sustainable Energy Systems , Saudi Arabia, Mechanical Engineering Department, Faculty of Engineering, Taif University, Saudi Arabia

Journal of Vibration and Control

Published online on May 30, 2025

Abstract

Journal of Vibration and Control, Ahead of Print.
This research focuses on the challenges of controlling the attitude of reusable launch vehicle (RLV) during their re-entry phase under inherent nonlinear dynamics and adverse environmental circumstances. In this context, a fixed-time disturbance observer (...