Essays about: "control spacecraft"

Showing result 21 - 25 of 67 essays containing the words control spacecraft.

1. 21. Heat and fluid control solutions for deep space CubeSat CGPS

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Filipp Byström-Troyan; [2021]
   Keywords : Cold gas propulsion; Thermal control; Computer simulation; Kallgasframdrivning; Termisk analys; Datorsimulering;

   Abstract : This thesis is on the subject of how propellant heating considerations affect the design of a CubeSat cold gas propulsion system. Computer simulation tools are used to analyse heat flow through the system, as well as the fluid flow and phase change of butane. READ MORE

3. 22. Modelling And Simulation of Attitude AndOrbital Control For Foresail-2

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Tushar Sharma; [2021]
   Keywords : ;

   Abstract : A central factor affecting spacecraft lifetime is the radiation environment, which isunpredictable due to an incomplete understanding of plasma dynamics. FORESAIL2 will build on the FORESAIL-1 results – measurements of radiation belt lossesand demonstrate deorbiting in LEO. READ MORE

4. 23. Sunshade Demonstrator Spacecraft Earth Sphere of Influence Escape Using a Propellant-free AOCS

   University essay from KTH/Rymdteknik

   Author : Leonardo Ricci; [2021]
   Keywords : Solar sail; Solar radiation pressure; Attitude control; Escape trajectory; Centre of pressure; Disturbance Torques; Eclipse.; Solsegel; Solstrålningstryck; Attitydkontroll; Flyktbana; Tryckcentrum; Störningsmoment; Eclipse.;

   Abstract : This thesis provides insights to what is peculiar about a solar sail attitude and orbit control system and provides the assessment, in the form of a feasibility study, of the effectiveness of sail tip vanes as a control hardware to escape the Earth sphere of influence. The demonstrator aims to prove the technology for the Sunshade project, a constellation of solar sails located at the Lagrangian point L1 to obscure part of the solar radiation directed towards earth. READ MORE

5. 24. Error Injection Study for a SpaceFibre In-Orbit Demonstrator

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Carlos Abad Garcia; [2020]
   Keywords : ;

   Abstract : The space electronics sector is shifting towards the New-Space paradigm, in which traditional space-quali_ed and expensive components and payloads are replaced by commercial o_-the-shelf (COTS) alternatives. This change in mentality is accompanied by the development of inexpensive cubesats, lowering the entry barrie in terms of cost, enabling an increase in scienti_c research in space. READ MORE

6. 25. FORESAIL-2 AOCS Trade Studies and Design

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Guillaume Le Bonhomme; [2020]
   Keywords : space engineering; CubeSat; ADCS; AOCS; spacecraft subystems; nanosatellite;

   Abstract : This thesis aims to design a reliable CubeSat platform, including the avionic subsystems that can sustain a high radiation environment for a mission having a lifetime of at least six months. The science instruments put stringent requirements on the platform to achieve and maintain the desired spin rate. READ MORE