Giuseppe Romeo
Analysis of approximate solutions with Edelbaum’s approximation for orbital maneuvers at periapsis/apoapsis.
Rel. Lorenzo Casalino. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Aerospaziale, 2022
|
Preview |
PDF (Tesi_di_laurea)
- Tesi
Licenza: Creative Commons Attribution Non-commercial No Derivatives. Download (6MB) | Preview |
Abstract
This paper proposes a series of estimated solutions with Electric Propulsion, based on Edelbaum’s approximation, for the preliminary calculation of the propellant consumption and the required orbital changes in periapsis and apoapsis maneuvers during an interplanetary mission to Near-Earth Asteroids. A set of 75 fictitious asteroids is considered to study the influence of the orbital parameters on the response of the method, with a revolution period close to one year and small eccentricity and inclination, and the assumed time of flight for the mission is three years, so three burning arcs are performed. The estimation does not need numerical integration, but only the resolution of two three-variable algebraic systems is necessary to define the whole transfer; thus, the computational time and cost are significantly reduced.
Various modifications have been made to the orbital elements of the arrival orbit to observe the trends of the parameters useful for the calculation of the algebraic systems: the inclination of the orbit is initially considered linearly proportional to the eccentricity, while in the following cases it is fixed at a certain number of values; the right ascension of ascending node in the first two cases is null, with the periapsis and the ascending node coinciding, then is assumed equal to π⁄4 and π⁄2, monitoring the changes due to the distancing of the line of nodes and the line of apsides
Tipo di pubblicazione
URI
![]() |
Modifica (riservato agli operatori) |
