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기술보고서

기술보고서 게시판 내용
타이틀	Intelligent Flexible Materials for Space Structures: Expandable Habitat Engineering Development Unit
저자	Hinkle, Jon;; Sharpe, George;; Lin, John;; Wiley, Cliff;; Timmers, Richard
Keyword	ARES 5 CARGO LAUNCH VEHICLE;; CONSTRAINTS;; DIAPHRAGMS (MECHANICS); EXPANDABLE STRUCTURES;; EXTRAVEHICULAR ACTIVITY;; FABRICATION;; FABRICS;; FULL SCALE TESTS;; MICROMETEOROIDS;; PLANETARY SURFACES;; SMART MATERIALS;; SPACECREWS;; STRESS ANALYSIS;; STRESS-STRAIN RELATIONSHIPS;; SYSTEMS ENGINEERING;; WEBBING
URL	http://hdl.handle.net/2060/20100017479
보고서번호	NASA/CR-2010-216682
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Expandable habitable elements are an enabling technology for human exploration in space and on planetary surfaces. Large geometries can be deployed from a small launch volume, allowing greater mission capability while reducing mass and improving robustness over traditional rigid shells. This report describes research performed by ILC Dover under the Intelligent Flexible Materials for Space Structures program on the design and manufacture of softgoods for LaRC''s Expandable Habitat Engineering Development Unit (EDU). The EDU is a full-scale structural test article of an expandable hybrid habitat, integrating an expandable softgoods center section with two rigid end caps. The design of the bladder, restraint layer and a mock-up Thermal Micrometeoroid Cover is detailed together with the design of the interface hardware used to attach them to the end caps. The integration and design of two windows and a floor are also covered. Analysis was performed to study the effects of the open weave design, and to determine the correct webbing and fabric configuration. Stress analyses were also carried out on the interfaces between the softgoods and the end caps and windows. Testing experimentally determined the strength of the fabric and straps, and component testing was used to proof several critical parts of the design. This program established new manufacturing and design techniques that can be applied to future applications in expandable structures.