Aerospace Science and Technology
On the Design of Nonlinear Discrete-Time Adaptive Controller for damaged Airplane

Karim Dastgerdi; Farshad Pazooki; Jafar Roshanian

Volume 12, Issue 2 , October 2019, , Pages 61-70

Abstract
  airplane in presence of asymmetric left-wing damaged. ‎Variations of the aerodynamic parameters, mass and ‎moments of inertia, and the center of gravity due to ‎damage are all considered in the nonlinear ‎mathematical modeling. The proposed discrete-time ‎nonlinear MRAC algorithm ...  Read More

Aerospace Science and Technology
Examination of Quadrotor Inverse Simulation Problem Using Trust-Region Dogleg Solution Method

Hamidreza Jafari; Farid Shahmiri

Volume 12, Issue 1 , March 2019, , Pages 39-51

Abstract
  In this paper, the particular solution technique for inverse simulation applied to the quadrotor maneuvering flight is investigated. The ‎trust-region dogleg (DL) technique which is proposed alleviates the weakness of Newton’s method used for numerical differentiation of system states in the ...  Read More

Improved Mathematical Model for Helicopters Flight Dynamics Applications

F. Saghafi; farid Shahmiri

Volume 4, Issue 3 , September 2007, , Pages 1-11

Abstract
  The purpose of this paper is concerned with the mathematical model development issues, necessary for a better prediction of dynamic responses of articulated rotor helicopters. The methodology is laid out based on mathematical model development for an articulated rotor helicopters, using the theories ...  Read More