Essays about: "Solar sail"

Showing result 1 - 5 of 9 essays containing the words Solar sail.

  1. 1. Resonance Mitigation in the Attitude Control of a Flexible Large Solar Sail

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Jonas Linnros; [2023]
    Keywords : Resonance; Control theory; Mechanics; Solar sail; PID; Space; Resonans; Reglerteknik; Mekanik; Solsegel; PID; Rymd;

    Abstract : This project is about the design process of a resonancemitigating algorithm for a large solar sail. The solar sail isa structure made up by four long booms in a cross patternwith suspended sails between the edges of the booms. Thespacecraft in this report is controlled using smaller rotatingsails at each tip of the booms. READ MORE

  3. 2. Attitude and orbit control analysis of a solar sail spacecraft for Space sunshade missions in the vicinity of the sub-Lagrange 1 point

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Benjamin Jouanneau; [2022]
    Keywords : ;

    Abstract : This Master thesis report contains a complete attitude and orbit control analysis for solar sail spacecraft in the Circular-Restricted-3-Body-Reference frame. The overall goal of the project is to drive one solar sail from the edge of the Earth Sphere of Influence to a vicinity of the sub-Lagrange1 point. READ MORE

  4. 3. Attitude control using ion thrusters for solar sailing from Low Earth Orbit to sub-L1

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Celeste Holm; Ida Ygland; [2022]
    Keywords : the sunshade project; geoengineering; solar sailing; attitude control; ion thrusters;

    Abstract : The purpose of the study is to evaluate the possibility of using gridded ion thrusters as a means of attitude control for a solar sail as a part of the sunshade project, which aims to place 10^8 solar sail sunshade spacecraft, each with an area of about 10 000 m^2, at the Sun-Earth Lagrangian point L1 in order to reduce Earth's global temperature. Two types of solar sail sunshade spacecraft were studied. READ MORE

  5. 4. Space environmental effects on solar sails

    University essay from KTH/Rymdteknik

    Author : Erik Lindblad Nyman; [2021]
    Keywords : Space environment; solar sail; radiation; membrane; Rymdmiljön; solsegel; strålning; membran;

    Abstract : As the average temperature on Earth keeps rising and becoming a greater threat to life on Earth, several methods has been proposed to mitigate the effects of elevated temperatures or to lower the Earth's average temperature drastically. One suggestion is a solar sail shade that blocks a portion of the incoming sunlight. READ MORE

  6. 5. 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