Browsing by Subject "Mecànica orbital"
Now showing items 1-20 of 20
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A method for the experimental characterisation of novel drag-reducing materials for very low Earth orbits using the Satellite for Orbital Aerodynamics Research (SOAR) mission
(2022-10)
Article
Open AccessThe Satellite for Orbital Aerodynamics Research (SOAR) is a 3U CubeSat mission that aims to investigate the gas–surface interactions (GSIs) of diferent materials in the very low Earth orbit environment (VLEO), i.e. below ... -
A review of gas-surface interaction models for orbital aerodynamics applications
(2020-11)
Article
Open AccessRenewed interest in Very Low Earth Orbits (VLEO) - i.e. altitudes below 450 km - has led to an increased demand for accurate environment characterisation and aerodynamic force prediction. While the former requires knowledge ... -
Analysis of Perturbation incidence in the calculation of trajectories in Ephemeris Model
(Universitat Politècnica de Catalunya, 2020-01-14)
Master thesis
Open Access
Covenantee: Cranfield UniversityThe main goal of this thesis is to deepen the understanding of the influence that the various perturbations exert on the trajectory calculations performed by the JPL ephemeris model to provide high-fidelity ephemeris in ... -
Arnold's mechanism of diffusion in the spatial circular restricted three-body problem: A semi-analytical argument
(2016-11-01)
Article
Open AccessWe consider the spatial circular restricted three-body problem, on the motion of an infinitesimal body under the gravity of Sun and Earth. This can be described by a 3-degree of freedom Hamiltonian system. We fix an energy ... -
Buscando órbitas períodicas
(Real Sociedad Matemática Española, 2020-11-07)
Article
Open AccessEn este artículo presentamos una aproximación topológica y geométrica al estudio de órbitas periódicas (existencia y localización) tomando como punto de partida problemas de mecánica celeste. Describimos, a grandes rasgos, ... -
Combined low-thrust propulsion and invariant manifold trajectories to capture NEOs in the Sun-Earth circular restricted three-body problem
(2014-11-01)
Article
Restricted access - publisher's policyIn this paper, a method to capture near-Earth objects (NEOs) incorporating low-thrust propulsion into the invariant manifolds technique is investigated. Assuming that a tugboat-spacecraft is in a rendez-vous condition with ... -
Ejection-collision orbits in the Restricted three-body problem
(2018-02)
Article
Open AccessIn this paper we analyse the ejection-collision (EC) orbits of the planar restricted three body problem. Being µ¿¿¿(0, 0.5] the mass parameter, and taking the big (small) primary with mass (µ), an EC orbit will be an orbit ... -
Estabilitat orbital d'un satèl·lit situat als punts L4/L5 del Sistema Terra-Lluna
(Universitat Politècnica de Catalunya, 2009-07-20)
Bachelor thesis
Open Access -
Feasibility study of the CASTOR Mission for small space debris in situ monitoring
(Universitat Politècnica de Catalunya, 2021-06-22)
Bachelor thesis
Open AccessAquest treball presenta l'estudi numèric de viabilitat de l'arquitectura de missió proposada per l'equip 4DCube de l'IEEC per a monitorització in situ de fragments petits de brossa espacial (<10 cm) des de nanosatèl·lits. ... -
Global instability in the restricted planar elliptic three body problem
(2018-01-01)
Article
Open AccessThe restricted planar elliptic three body problem (RPETBP) describes the motion of a massless particle (a comet or an asteroid) under the gravitational field of two massive bodies (the primaries, say the Sun and Jupiter) ... -
Improving the performances of Orbit Restitution by menas of a Kalman filter
(Universitat Politècnica de Catalunya, 2009-08-03)
Master thesis (pre-Bologna period)
Open Access -
Jet transport-based analysis of absolute reachable domain under a single impulse
(International Astronautical Federation (IAF), 2023)
Conference report
Restricted access - publisher's policyThis paper proposes a jet transport-based semi-analytical method to precisely compute spacecraft absolute reachable domain under a single impulse, with the consideration of the main orbital perturbations. Firstly, the ... -
Mubody, an astrodynamics open-source Python library focused on libration points
(Universitat Politècnica de Catalunya, 2022-04-29)
Conference lecture
Open AccessMubody is an astrodynamics open-source Python library focused on the libration points. Such points result from the equilibrium of the gravitational forces between two massive bodies as the Sun and Earth, for example. The ... -
On the cucker-smale flocking model applied to a formation moving in a central force field around the Earth
(2013)
Conference report
Restricted access - publisher's policyThe Cucker – Smale (CS) flocking model is an interacting particles control system where every particle adjusts its dynamics according to a weighted average between its velocity and those of the other elements of the ... -
Propuesta de viaje espacial al cinturón de Kuiper
(Universitat Politècnica de Catalunya, 2019-10-30)
Bachelor thesis
Open Access[CASTELLÀ] El objetivo principal del trabajo es elaborar una propuesta de misión espacial para explorar el cinturón de Kuiper, una región del sistema solar situada a 30-55 ua del sol. Para la exploración se plantea el uso ... -
SOAR - Satellite for Orbital Aerodynamics Research
(International Astronautical Federation, 2018)
Conference report
Restricted access - publisher's policySOAR (Satellite for Orbital Aerodynamics Research) is a CubeSat mission designed to investigate the interaction betweendifferent materials and the atmospheric flow regime in Very Low Earth Orbits (VLEO) and to demonstrate ... -
Some manifolds of periodic orbits in the restricted three body problem
(1984)
Research report
Open AccessIn the present paper we give some numerical results about natural families of periodic orbits, which emanate from limiting orbits around equilateral equilibrium points of the Restricted Three Body Problem, when the mass ... -
Study and comparison of integrators for bodies orbiting the Earth
(Universitat Politècnica de Catalunya, 2023-07-14)
Bachelor thesis
Open AccessThis Bachelor's thesis aims to study the behavior and performance of different open-source propagators for satellites orbiting the Earth. Analytical, numerical, and semi-analytical techniques have been used to solve the ... -
Study and evaluation of the performance of a multistage solid-propellant rocket vehicle, including atmospheric ascent and orbital insertion
(Universitat Politècnica de Catalunya, 2021-06-21)
Bachelor thesis
Open AccessEn aquest projecte s'estudia i s'avalua el rendiment d'un coet de diverses etapes de propel·lent sòlid durant tot el seu ascens atmosfèric i fins a la seva inserció orbital. Per tant, en primer lloc s'analitza la composició ... -
Study on the viability of transfer trajectories to the stability region around L4 and L5 Lagrange Points in the Earth-Sun system
(Universitat Politècnica de Catalunya, 2023-07-17)
Bachelor thesis
Open AccessIn the present thesis a study is done regarding the viability and optimization of trajectories to get to the stability region around Lagrange points L4 and L5 from the Earth, specifically from periodic orbits around Lagrange ...