Research

In avionics, The Base of Aircraft Data (BADA) provides a set of ASCII files containing performance and operating procedure coefficients for 295 different aircraft types. The coefficients include those used to calculate thrust, drag and fuel flow and those used to specify nominal cruise, climb and descent speeds. User Manual for Revision 3.6 of BADA provides definitions of each of the coefficients and then explains the file formats.

This information is designed for use in trajectory simulation and prediction algorithms within the domain of Air Traffic Management (ATM). All files are maintained within a configuration management system at the Eurocontrol Experimental Centre (EEC).

The Total-Energy Model TEM equates the rate of work done by forces acting on the aircraft to the rate of increase in potential and kinetic energy. Likewise, it provides the mathematical relation between the ROCD variables (dh/dt), the aircraft velocity with respect to an inertial frame on ground (Vtas) and the Thrust force (T), which it also allows to obtain the ROCD (dh/dt) as a function of Vtas and T variables.

Reserach efforts in this project are oriented towards:

- Explore aircraft aerodynamics equations (TEM model), in order to reformulate the TEM model with the purpose of computing aircraft velocity and Thrust as a function of the rate of climb (vertical displacement/horizontal displacement dh/dx), instead of ROCD dh/dt.

-   To study both analytical or numerical solutions to solve TEM differential equations of motion, considering: time response, convergence, realability, accuracy, as top criteria.

-   To define how to estimate initial conditions of the TEM model in terms of aircraft dynamics maneuver.