A study was conducted to define reasonable and representative large deployable reflector (LDR) system concepts for the purpose of defining a technology development program aimed at providing the requisite technological capability necessary to start LDR development by the end of 1991. This volume includes the executive summary for the total study, a report of thirteen system analysis and trades tasks (optical configuration, aperture size, reflector material, segmented mirror, optical subsystem, thermal, pointing and control, transportation to orbit, structures, contamination control, orbital parameters, orbital environment, and spacecraft functions), and descriptions of three selected LDR system concepts. Supporting information is contained in appendices.
Large Deployable Reflector (LDR) System Concept and Technology Definition Study. Volume 1: Executive Summary, Analyses and Trades, and System Concepts
1989
375 pages
Report
Keine Angabe
Englisch
Unmanned Spacecraft , Manned Spacecraft , Large deployable reflector , Large space structures , Mirrors , Orbital assembly , Pointing control systems , Space erectable structures , Space transportation system , Spacecraft design , Optical equipment , Structural design , Technology assessment , Apertures , Design analysis , Meteoritic damage , Radiation effects , Space stations , Spacecraft contamination