Now showing items 21-40 of 86

    • Detecting invariant manifolds using Lagrangian coherent structures 

      Pérez, Daniel; Gómez Muntané, Gerard; Masdemont Soler, Josep (2012)
      Conference report
      Open Access
      Using as reference test model the Planar Circular Restricted Three Body Problem, this paper explores its Lagrangian Coherent Structures, as well as its Hyperbolic Lagrangian Coherent Structures. The purpose is to identify ...
    • Dynamic mechanisms for spacecraft disposal from Sun-Earth libration points 

      Olikara, Zubin; Masdemont Soler, Josep; Gómez Muntané, Gerard (2015-10-31)
      Article
      Restricted access - publisher's policy
      This work investigates end-of-life trajectories for spacecraft in orbit about the sun–Earth L1
    • Dynamics and mission design near libration points, advanced methods for collinear points 

      Gómez, Gerard; Jorba, Angel; Masdemont Soler, Josep; Simó Torres, Carlos (2000)
      Article
      Open Access
      Preface and table of contents of a forthcoming book published by World Scientific
    • Dynamics and mission design near libration points, advanced methods for triangular points 

      Gómez, Gerard; Jorba, Angel; Masdemont Soler, Josep; Simó Torres, Carlos (2000)
      Article
      Open Access
      The final objective of this work is to understand, analyze and compute the kinds of motion that appear on a vicinity (may be a large vicinity) of the geometrically defined equilateral points of the Earth-Moon system, as a ...
    • Dynamics around the triangular libration points of 1999 KW4 

      Yuying, Liang; Gómez Muntané, Gerard; Masdemont Soler, Josep; Ming, Xu (2018)
      Conference report
      Restricted access - publisher's policy
      His paper studies the dynamics of stable regions for relatively long time intervals (practical stability) in the vicinity of the triangular equilibrium points of a binary asteroid with mass ratio µ larger than Rouths ...
    • Dynamics in the centre manifold around equilibrium points in periodically perturbed three-body problems 

      Le Bihan, Bastien; Masdemont Soler, Josep; Gomez Muntané, Gerard; Lizy-Destrez, Stephanie (2016)
      Conference report
      Open Access
      A new application of the parameterization method is pre- sented to compute invariant manifolds about the equilib- rium points of Periodically Perturbed Three-Body Problems ( PPTBP ). These techniques are applied to obtain ...
    • Dynamics of solar radiation pressure-assisted maneuvers between lissajous orbits 

      Stefania, Soldini; Masdemont Soler, Josep; Gómez Muntané, Gerard (2019-04-01)
      Article
      Open Access
      The analysis of the phase space geometry around the artificial L1,2 equilibrium points of the circular restricted three-body problem, including solar radiation pressure, is used to investigate “propellant-free” transfers ...
    • Editorial: The earth–moon system as a dynamical laboratory 

      Alessi, Elisa Maria; Masdemont Soler, Josep; Rossi, Alessandro (2019-06-12)
      Article
      Open Access
    • End-of-life disposal of libration point orbit spacecraft 

      Olikara, Zubin; Gómez Muntané, Gerard; Masdemont Soler, Josep (2013)
      Conference report
      Open Access
      In this work we investigate end-of-life trajectories for spacecraft in orbit about the Sun-Earth L 1 and L 2 libration points. A plan for decommission is often re- quired during the mission design process. We ...
    • Estudi i utilització de materials invariants en problemes de mecànica celeste 

      Masdemont Soler, Josep (Universitat Politècnica de Catalunya, 1991-10-09)
      Doctoral thesis
      Open Access
      La memòria consta de dues parts. En la primera d'elles s'estudien les òrbites homoclíniques i heteroclíniques associades als punts d'equilibri triangulars del problema restringit circular i pla per valors del paràmetre de ...
    • Formation flying in space borne artificial magnetic dipole field 

      Cheng, Yu; Gómez Muntané, Gerard; Masdemont Soler, Josep; Yuan, Jianping (2017)
      Conference lecture
      Open Access
      In this paper, we consider a new dynamical scenario in which a constantly charged spacecraft (follower) moves near a leader spacecraft, which follows a circular Keplerian orbit around the Earth and generates a rotating ...
    • From manifolds to Lagrangian coherent structures in galactic bar models 

      Sánchez Martín, Patricia; Masdemont Soler, Josep; Romero Gómez, Merce (EDP Sciences, 2018-10-16)
      Article
      Open Access
      We study the dynamics near the unstable Lagrangian points in galactic bar models using dynamical system tools in order to determine the global morphology of a barred galaxy. We aim at the case of non-autonomous models, in ...
    • Further advances on low-energy lunar impact dynamics 

      Alessi, Elisa Maria; Gómez, Gerard; Masdemont Soler, Josep (2010-02)
      Article
      Restricted access - publisher's policy
      We extend the analysis, started in a previous work [1], concerning the formation of lunar impact craters due to low-energy trajectories. First, we adopt the Circular Restricted Three- Body Problem and consider different ...
    • Haar wavelets based approach for quantifying credit portfolio loses 

      Masdemont Soler, Josep; Ortiz-Gracia, Luís (2011)
      Article
      Restricted access - publisher's policy
      This paper proposes a new methodology to compute Value at Risk (VaR) for quantifying losses in credit portfolios. We approximate the cumulative distribution of the loss function by a finite combination of Haar wavelet ...
    • High accuracy state and parameter estimation of GEO-stationary satellites using Jet Transport based nonlinear filtering algorithm 

      Chen, Jianlin; Masdemont Soler, Josep; Gómez Muntané, Gerard; Yuan, Jianping (2018)
      Conference report
      Restricted access - publisher's policy
      We consider the problem of state and parameter estimation for geostationary spacecraft in an accurate and efficient way. For this purpose we implement a Jet Transport Taylor technique in two coordinate representations, ...
    • High-fidelity trajectory design to flyby near-Earth asteroids using Cubesats 

      Machuca, Pablo; Sánchez Cuartielles, Joan Pau; Masdemont Soler, Josep; Gómez Muntané, Gerard (2019-09-02)
      Article
      Restricted access - publisher's policy
      Fast development of CubeSat technology now enables the first interplanetary missions. The potential application of CubeSats to flyby near-Earth asteroids is explored in this paper in consideration of CubeSats' limited ...
    • Homoclinic and heteroclinic transfer trajectories between Lyapunov orbits in the Sun-Earth and Earth-Moon systems 

      Canalias Vila, Elisabet; Masdemont Soler, Josep (2004)
      Article
      Open Access
      In this paper a method for finding homoclinic and heteroclinic connections between Lyapunov orbits using invariant manifolds in a given energy surface of the planar restricted circular three body problem is developed. Moreover, ...
    • Impulsive transfers between lissajous libration point orbits 

      Canalias Vila, Elisabet; Cobos Lucas, Jordi; Masdemont Soler, Josep (2003)
      Article
      Open Access
      A complete methodology for the transfer between two Lissajous orbits around the same collinear equilibrium point is developed making use of the geometry of the phase space around these points. The result of the study ...
    • Introducció a la simulació 

      Jorba Monte, Angel; Masdemont Soler, Josep (UPC, 1995)
      Book
      Restricted access to the UPC academic community
      El llibre Introducció a la simulació conté les eines i bases fonamentals dels mètodes emprats en la simulació per ordinador. El contingut, lluny de fer presentacions excessivament teòriques, s'organitza de manera adequada ...
    • Invariant manifolds of a non-autonomous quasi-bicircular problem computed via the parameterization method 

      Le Bihan, Bastien; Masdemont Soler, Josep; Gómez Muntané, Gerard; Lizy-Destrez, Stephanie (2017-08-01)
      Article
      Open Access
      The parameterization method (pm) has been used to compute high-order parameterizations of invariant manifolds of vector fields at fixed points. This paper extends such approach to invariant manifolds of periodically-perturbed ...