TCAS Logic Improvement for Airliners Formation Flights

Please enable javascript in your browser.

Dolatabadi, Shirin | 2019

507 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 52145 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Malaek, Mohammad Bagher
Abstract:
This study explores the trajectory optimization of two aircrafts’ formation flight seeking minimization of fuel consumption and flight duration while considering activation of the Traffic Collision Avoidance System (TCAS) during the flights. In order to model the effects of this system, a set of codes has been developed in the Matlab software environment, which utilizes an estimation model of induced drag for each aircraft by their relative positions. Also, position rotation is allowed, and the number and location of rotations are controllable by the user. The TCAS determines the allowable distances between aircrafts during flights based on relative velocities and relative heading angles. Allowable distances are implemented as path constraints at this optimal control problem. The results show that TCAS activation has some considerable effects on rendezvous point location. Moreover, two aircrafts could receive a significant benefit from formation flight even while the TCAS is activated when considering long haul flights
Keywords:
Extended Formation Flight ; Traffic Collision Avoidance System (TCAS) ; Direct Collocation Method ; Optimal Control ; Airliners

No TOC