Robust attitude control problem for a three-degree-of-freedom (3-DOF) laboratory helicopter
is investigated. The helicopter dynamics involves nonlinearity, uncertainties, and strong …

Twin rotor systems in many ways resemble helicopters and they are multiple-input multiple-
output (MIMO) systems, highly nonlinear, and there is significant cross-coupling between …

In this paper, a nonlinear robust controller is proposed to deal with the flight mode transition
control problem of tail-sitter aircrafts. During the mode transitions, the control problem is …

In this study, a nonlinear robust control strategy designed for underactuated mechanical
systems is proposed in order to solve the path tracking problem for a quadrotor unmanned …

This paper proposes a robust attitude tracking controller for a table-mounted experimental
helicopter that has three rotational degrees-of-freedom and only equips angular position …

This work presents a bond graph (BG) model and a robust cascaded controller for a twin-
rotor system (TRS). The BG model accounts for all the energetic and dynamical couplings …

In this paper we develop a complete dynamic model of the Twin Rotor MIMO System (TRMS)
using the Euler–Lagrange method. Our model improves upon the model provided by the …

SUMMARY A three‐time scale singular perturbation control law is designed for a nonlinear
helicopter model in vertical flight. The proposed control law is based on time scale …

This paper describes the design and successful implementation of a constrained model
predictive controller with integral action for the control of a Twin Rotor MIMO System (TRMS) …

A robust output‐feedback attitude controller for three‐degree‐of‐freedom laboratory
helicopter is proposed in this study. The laboratory helicopter has three rotational degree‐of …