Large space erectable structures.
Large space erectable structures rigidity, stiffness, thermal stability, structural efficiency and integrity
Vaughan, D. H.↗
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COMPOSITE MATERIALS IN ERECTABLE SPACE STRUCTURES - ECHO SATELLITES
Discussion of composite materials in erectable space structures, and experimental results on the echo satellites
COMMUNICATIONS SATELLITE↗
Flexible foam erectable space structures Patent
Self-erectable space structures of flexible foam for application in planetary orbits
Hoffman, E. L.↗
THE USE OF RADIATION-INDUCED PLASTIC MEMORY TO DEVELOP NEW SPACE ERECTABLE STRUCTURES.
Radiation-induced plastic memory in new space erectable structure development
PLASTIC MEMORY↗
The Use of Radiation-Induced Plastic Memory to Develop New Space Erectable Structures
Radiation induced plastic memory in polyethylene and use in space erectable structures
POLYETHYLENE↗
Assembly Concept for Construction of Erectible Space Structure (ACCESS) Neutral Buoyancy Testing Results
ACCESS, which is an acronym for Assembly Concept for Construction of Erectable Space Structure, is a planned Shuttle flight experiment to assess the potential of a manual on orbit construction concept and generate assembly data for correlation of ground test data. The individual parts (struts and nodal joints used to interconnect the struts) of the beam truss shown attached to the Shuttle in the figure are unpackaged and assembled by two astronauts working from fixed foot restraints (work stations). The planned flight experiment is described and results of the baseline neutral buoyancy simulation of the flight test are presented.
Heard, W. L., Jr.↗
Development of assembly and joint concepts for erectable space structures
The technology associated with the on-orbit assembly of tetrahedral truss platforms erected of graphite epoxy tapered columns is examined. Associated with the assembly process is the design and fabrication of nine member node joints. Two such joints demonstrating somewhat different technology were designed and fabricated. Two methods of automatic assembly using the node designs were investigated, and the time of assembly of tetrahedral truss structures up to 1 square km in size was estimated. The effect of column and node joint packaging on the Space Shuttle cargo bay is examined. A brief discussion is included of operating cost considerations and the selection of energy sources. Consideration was given to the design assembly machines from 5 m to 20 m. The smaller machines, mounted on the Space Shuttle, are deployable and restowable. They provide a means of demonstrating the capabilities of the concept and of erecting small specialized platforms on relatively short notice.
Jacquemin, G. G.↗
Large space erectable structures - building block structures study
A modular planar truss structure and a long slender boom concept identified as building block approaches to construction of large spacecraft configurations are described. The concepts are compatible in weight and volume goals with the Space Transportation System, use standard structural units, and represent high on-orbit productivity in terms of structural area or beam length. Results of structural trade studies involving static and dynamic analyses of a single module and rigid body deployment analyses to assess kinetics and kinematics of automatic deployment of the building block modules are presented.
Armstrong, W. H.↗
Efficient concepts for large erectable space structures
The status of Langley Research Center development of the nestable column concept is reviewed including results of member and truss component tests, and planned assembly studies. In addition, more recent studies of alternative member concepts are presented. Preliminary results on relative efficiency of several types of truss-type columns are compared and future test plans discussed.
Card, M. F.↗
ACCESS (Assembly Concept for Construction of Erectable Space Structure) - A Shuttle flight experiment
ACCESS is a planned Shuttle flight experiment to assess the potential of an on-orbit construction concept designed for efficient manual assembly of a space truss. The experiment, which is scheduled for launch November 27, 1985, on the Space Transportation System (STS) flight 61-B, uses two astronauts secured in fixed foot restraints located in the Shuttle cargo bay to assemble a 45-foot long aluminum truss beam from 93 tubular struts and 33 nodal joints. Neutral buoyancy simulations of the flight experiment indicate the truss can be assembled in less than thirty minutes. Structural assembly, structural repair, flexible cable attachment and manual manipulation of the truss is also planned for the experiment using an astronaut secured in the Manipulator Foot Restraint attached to the Remote Manipulator System arm. Flight assembly data will be generated for correlation of the neutral buoyancy ground test data. This paper describes the ACCESS flight experiment and presents results of the neutral buoyancy development and training tests.
Heard, W. L., Jr.↗
Development of a prototype plastic space erectable satellite Quarterly report, Mar. - May 1966
Mechanical and tensile properties of polyethylene films for prototype plastic space erectable structures
SPACE ERECTABLE STRUCTURE↗
Inflatable support structure Patent
Pneumatic cantilever beams and platform for space erectable structure
Pleasants, J. E.↗
Thermal analysis of the ACCESS space truss
This paper introduces the Assembly Concept for the Construction of Erectable Space Structure (ACCESS) experiment and describes the thermal requirements in detail. The experiment, an erectable truss beam to be flown and assembled aboard the Space Shuttle, was thermally modeled using the TRASYS and SINDA computer codes. Results from the thermal analysis are presented. Development tests dictate the application of a metallized film insulation on the aluminum beam struts to control transient orbital temperature extremes.
Foss, R. A.↗
Mission Peculiar Equipment Support Structure: A platform for space construction
The Space Shuttle requires carriers to support payloads in the cargo bay. As a result, the Mission Peculiar Equipment Support Structure (MPESS) was designed to carry partial payloads aboard the shuttle. The efforts to customize the MPESS for the Experimental Assembly of Structure in EVA (EASE) and Assembly Concept for Construction of Erectable Space Structure (ACCESS) experiments are summarized.
Hill, Robert↗
A synopsis of the EVA training conducted on EASE/ACCESS for STS-61-B
Experimental Assembly of Structure in EVA (EASE)/Assembly Concept for Construction of Erectable Space Structures (ACCESS) training problems; photography/television coverage; training schedules; flight data file (FDF), and flight rules production are summarized.
Havens, Kathryn A.↗
Large space structure experiments for AAP. Volume 2 - Analysis and evaluation of space structure concepts Final report, 15 Sep. 1966 - 15 Sep. 1967
Systems analyses of space erectable structure concepts for Apollo Applications Program
Source record↗
Large space structure experiments for AAP. Volume 1 - Summary Final report, 15 Sep. 1966 - 15 Sep. 1967
Design evaluation criteria on space erectable structure concepts and flight objectives for Apollo Applications Program experiment
Source record↗
Feasibility demonstration for electroplating ultra-thin polyimide film
The effect of electrodeposition variables on film thickness was investigated using a dilute polyimide solution as a bath into which aluminum (as foil or as a vapor deposited coating) was immersed. The electrodeposited film was dried for 2 hours at 93 C (primarily to remove solvent) and cured for 18 hours at 186 C. Infrared studies indicate that imide formation (curing) occurs at 149 C under vacuum. From a conceptual viewpoint, satisfactory film metallized on one side can be obtained by this method. The cured ultra thin polyimide film exhibits properties equivalent to those of commercial film, and the surface appearance of the strippable polyimide film compares favorably with that of a sample of commercial film of thicker gauge. The feasibility of manufacturing approximately one million sq m of ultra thin film capable of being joined to fabricate an 800 m by 9 800 m square from starting material 0.5 to 1 m wide for space erectable structures was demonstrated.
Schneier, R.↗