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In this paper we present the dynamic model and the stabilisation of an original configuration of an small helicopter having eight rotors. This configuration is not yet presented in the literature and in our knowledge is also the first prototype of this kind of helicopters. The equations of motion for the VTOL aircraft are obtained using Euler-Lagrange approach. Due to the configuration of the aircraft...
A modeling approach based on traffic flow theory, that involves orders and delays in material flows for supply chains is presented. The resulting dynamic model is nonlinear and reflects basic phenomena of supply chains such as bullwhip effect due to delays on delivering materials. For control purposes a bounded PI control for inventory level regulation is considered. A stability analysis of the closed...
This paper deals with the problem of stabilizing n integrators in cascade with bounded input using a discrete-time controller. We propose here a control algorithm using saturation functions for the case of 3 integrators and then we extend the development to the case of n integrators. The control methodology developed is simple and is explicitly given. We present a real-time application of the proposed...
In this paper, we present the design of an autopilot embedded control system for VTOL aircrafts using low cost sensors. The embedded control system uses parallel processing architecture. In addition, multitasking software is used to implement the data acquisition, control law computation, and correction output to get the desired set point. The control law can be easily tuning to improve the performance...
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