Accession Number : AD0471333


Title :   AEROSPACE EXPANDABLE STRUCTURES AND MAINTENANCE SUPPORT DEVICES. VOLUME 1. EXPANDABLE SELF-RIGIDIZING SOLAR ENERGY CONCENTRATORS AND AEROSPACE SHELTERS FROM HONEYCOMB TYPE FABRIC


Descriptive Note : Technical rept. 9 Dec 1963-2 Nov 1964


Corporate Author : GCA VIRON DIV MINNEAPOLIS MN


Personal Author(s) : Rochon, Ronald ; Clark, Robert C ; Hanssen, Nels S ; McKillip, William J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/471333.pdf


Report Date : Jul 1965


Pagination or Media Count : 170


Abstract : Materials and techniques were improved to advance the concept of expandable,self-rigidizing honeycomb type structures. The strength to weight ratio of structures was markedly improved through the correct utilization of inflatable configurations with a high degree of structural rigidity. A rigidizing resin was developed with an improved strength/weight ratio, a more rapid cure time, and a good shelf life. Solar collectors with reasonably good optical reflectivity and aerospace shelters were fabricated, expanded, and rigidized. Two large sized structures suitable for space application were constructed as end items of this study. Those structures were a 10 foot diameter, 60 degree rim angle solar energy concentrator and a 13 x 15 ft semi-cylindrical aerospace maintenance dock. Both structures utilized a resin impregnated honeycomb type fabric construction and were inflated and rigidized from a packaged configuration. The maintenance dock was successfully designed for 30 psf gravity and 100 mph wind loads. Both structures significantly advanced the concept of expandable, self-rigidizing structures by their size, construction, and performance.


Descriptors :   *SPACE STATIONS , *LAMINATED PLASTICS , *EXTENDABLE STRUCTURES , STRESSES , MANUFACTURING , SHELTERS , DEFORMATION , NYLON , ELASTIC PROPERTIES , POROSITY , SPACE MAINTENANCE , GLASS TEXTILES , IMPREGNATION , HONEYCOMB CORES , FLEXIBLE STRUCTURES , TABLES(DATA) , SURFACE ACTIVE SUBSTANCES , SOLAR RADIATION , TEXTILES , EPOXY RESINS , VISCOSITY


Subject Categories : Unmanned Spacecraft


Distribution Statement : APPROVED FOR PUBLIC RELEASE