The sliding-rolling ratio between the femoral and tibial condyles throughout the active
functional arc of the knee (20-120º of flexion angle) is currently unknown. Since wear is the …

Control design for helicopters is a complicated and challenging problem due to the strong
inter-couplings and nonlinear uncertainties in the system model. This paper deals with the …

A small-scale helicopter testbed has been constructed to study the dynamics and control of
helicopters carrying suspended loads. This paper presents an overview of the testbed, a …

Due to not only having strong nonlinear inter-couplings in its model but also being an open-
loop unstable system, control of a 2-degree of freedom (DOF) helicopter is a challenging …

Modeling stage of complex aerial vehicles requires tremendous man power and expertise
because of their highly nonlinear dynamics as well as complex inter couplings. In this paper …

The 3 degree of freedom (3-DOF) helicopter system is a typical higher-order times,
instability, multi-variable, nonlinear and strong coupling control system. This paper presents …

This paper addresses the challenges of the disturbance observer (DOB) algorithms faced
with highly nonlinear electromechanical systems which are dealing with high resolution and …

This paper presents the stages in the construction of a two-degree-of-freedom (2DOF)
helicopter from scratch, and the process followed to obtain its dynamical model. The …

This paper presents the design procedure of the integral sliding mode controller with
enhanced robustness properties for a class of nonlinear uncertain systems. The integral …

This paper focuses on the design of robust controllers for the stabilization of CE 150
Humusoft 2-DoF Helicopter system which represents a highly nonlinear & cross coupled …