Browsing by Subject "Vehicles espacials"

Now showing items 1-20 of 41

    • A comparison study on meta-heuristics for ground station scheduling problem 

      Xhafa Xhafa, Fatos; Herrero, Xavier; Barolli, Admir; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Open Access
      In ground station scheduling problem the aim is to compute an optimal planning of communications between Spacecrafts (SCs) and operations teams of Ground Stations (GSs). While such allocation of tasks to ground stations ...

    • A picture of solar-sail heteroclinic enhanced connections between Lissajous libration point orbits 

      Duan, Xun; Gerard, Gomez; Masdemont Soler, Josep; Yue, Xiaokui (2020-03-09)
      Article
      Open Access
      The dynamics of solar-sail maneuvers are conceptually different from classical control maneuvers where one considers impulsive changes in the velocity of a spacecraft. Solar-sail orbits are continuous in both position and ...

    • An adaptive remeshing procedure for proximity maneuvering spacecraft formations 

      García Taberner, Laura; Masdemont Soler, Josep (2012)
      Article
      Open Access
      We consider a methodology to optimally obtain reconfigurations of spacecraft formations. It is based on the discretization of the time interval in subintervals (called the mesh) and the obtainment of local solutions on ...

    • An investigation into cold weld adhesion for spacecraft repair after a space debris impact using space education based sub-orbital sounding rocket platform 

      Wylie, Mark; Barilaro, Leonardo (Universitat Politècnica de Catalunya, 2022-04-29)
      Conference lecture
      Open Access
      It has been observed that similar metallic materials, when in contact and undergoing relative displacements, can fuse or weld. In standard atmospheric conditions it is not common but in the space environment the inability ...

    • An on-board algorithm implementation on an embedded GPU: A space case study 

      Rodríguez Ferrandez, Iván; Kosmidis, Leonidas; Notebaert, Olivier; Cazorla Almeida, Francisco Javier; Steenari, David (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      On-board processing requirements of future space missions are constantly increasing, calling for new hardware than the traditional ones used in space. Embedded GPUs are an attractive candidate offering both high performance ...

    • Aprendizaje de sistemas no tripulados basado en la construcción de un rover autónomo 

      Ruzafa Saceda, Albert (Universitat Politècnica de Catalunya, 2021-07-27)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • CO2-cushion vehicle for Mars. An alternative locomotion for exploration rovers 

      Arias Montenegro, Francisco Javier (American Institute of Aeronautics and Astronautics (AIAA), 2018)
      Conference report
      Restricted access - publisher's policy
      In this work, consideration is given to ad hoc cushion vehicles for Mars. On Earth, air cushion vehicles use pressurized atmospheric air by means of powerful blowers that pump the air into a chamber, however, for Mars -at ...

    • Cohetes y nostalgia 

      Barceló Garcia, Miquel (2015-07)
      Article
      Open Access

    • Confinement of spacecraft swarms in J2-perturbed orbits about the earth 

      García-Taberner, Laura; Masdemont Soler, Josep (2014)
      Conference report
      Open Access
      There have been studies of the reliability of a swarm [3], based on nano-satellites, that give a study for the num- ber of satellites that can be working as a period of time, with good results for a 5-10 anys time ...

    • Containment methods for atmospheric re-entry of satellites 

      Eggen, Njord (Universitat Politècnica de Catalunya, 2019-06-27)
      Master thesis
      Restricted access - author's decision
      To palliate the hazards posed by satellites re-entering the atmosphere, international guidelines have defined a maximum acceptable risk for objects to re-enter uncontrolled. Containment methods attempt to reduce this ...

    • Control remoto 

      Barceló Garcia, Miquel (2015-01)
      Article
      Open Access

    • De-RISC: the First RISC-V space-grade platform for safety-critical systems 

      Wessman, Nils-Johan; Malatesta, Fabio; Andersson, Jan; Gómez Molinero, Paco; Masmano Tello, Miguel; Nicolau Gallego, Vicente; Le Rhun, Jimmy; Cabo Pitarch, Guillem; Bas Jalón, Francisco; Lorenzo Ortega, Rubén; Sala Sucarrats, Oriol; Trilla Rodríguez, David; Abella Ferrer, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      The increasing needs for performance in the space domain for highly autonomous systems calls for more powerful space MPSoCs and appropriate hypervisors to master them. These platforms must adhere to strict reliability, ...

    • Design of a space elevator as an alternative transport to space 

      Binti Nor Rahman, Huda Hazwani (Universitat Politècnica de Catalunya, 2021-07-13)
      Bachelor thesis
      Open Access
      La idea del ascensor espacial ha existido durante más de un siglo cuando Konstantin Tsiolkovsky inventó el concepto por primera vez en 1895. Sin embargo, el concepto solo se encuentra en el ámbito de la ciencia ficción, ...

    • Designing space elevator as a low-cost transportation to space 

      Bin Ahmad Takhiuddin, Ahmad Hatim (Universitat Politècnica de Catalunya, 2020-07-13)
      Bachelor thesis
      Open Access
      La exploración espacial ayuda a abordar preguntas fundamentales sobre nuestro lugar en el universo y la historia de nuestro sistema solar. Sin embargo, llegar al espacio es muy costoso, ya que se necesitan alrededor de 500 ...

    • Disseny d'un vehicle lunar per facilitar el transport d'astronautes 

      Puigjaner Muñoz, Joaquim (Universitat Politècnica de Catalunya, 2020-07-14)
      Bachelor thesis
      Open Access
      L’any 1951 Arthur C. Clarke escriptor mes conegut com l’autor de la novel·la “2001 una odissea en el espai” pública l’obra “Les arenes de Mart” el qual narra la historia d’un escriptor que viatja en la primera nau que fa ...

    • El Ascensor espacial 

      Edwards, Bradley C. (Edicions UPC, 2010)
      Book
      Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
      Cincuenta años después de que el Sputnik sobrevolara la Tierra a menos de 1.000 km de altitud, circunstancia que despertó dosis similares de recelo y admiración, la exploración espacial sigue sustentándose en cohetes que ...

    • Estudio de un rover con suspensión rocker-bogie para misiones en Marte 

      Martín Varela, Hernán (Universitat Politècnica de Catalunya, 2021-07-27)
      Bachelor thesis
      Open Access
      En el presente Trabajo de Fin de Grado se expone el estudio de un róver con suspensión rocker-bogie para misiones en Marte. Pero, y por qué Marte? Primero, porque es el planeta más cercano a la Tierra y guardan infinitas ...

    • Evaluation of struggle strategy in genetic algorithms for ground stations scheduling problem 

      Xhafa Xhafa, Fatos; Herrero, Xavier; Barolli, Admir; Barolli, Leonard; Takizawa, Makoto (2012-02-12)
      Article
      Open Access
      Ground station scheduling problem arises in spacecraft operations and aims to allocate ground stations to spacecraft to make possible the communication between operations teams and spacecraft systems. The problem belongs ...

    • Experimental testing of the thermal behaviour of spacecraft PCBs 

      Huete Ibán, David (Universitat Politècnica de Catalunya, 2018-09-10)
      Bachelor thesis
      Restricted access - author's decision
      The main objective of this paper is the study of the thermal behaviour of spacecrafts PCB. Specifically, the work is focused on obtaining experimental data of the thermal contact resistance of a spacer in a PCB in therms ...

    • Ground Stations Scheduling with Genetic Algorithm 

      Sun, Junzi (Universitat Politècnica de Catalunya, 2009-07-02)
      Master thesis
      Restricted access - author's decision
      TThis work presents a Genetic Algorithm (GA) approach to Ground Station (GS) and Spacecraft (SC) Scheduling problem, which is based on the space missions and ground stations from ESA (European Space Agency). Genetic ...