국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Advanced Stirling Convertor Dynamic Test Approach and Results
저자	Meer, David W.;; Hill, Dennis;; Ursic, Joseph J.
Keyword	ACCELEROMETERS;; DYNAMIC TESTS;; FLIGHT TESTS;; LAUNCHING;; PISTONS;; QUALITY CONTROL;; REFUELING;; SPACE MISSIONS;; STIRLING CYCLE;; VIBRATION;; VIBRATION TESTS
URL	http://hdl.handle.net/2060/20100017258
보고서번호	NASA/CR-2010-216237
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	The U.S. Department of Energy (DOE), Lockheed Martin Corporation (LM), and NASA Glenn Research Center (GRC) have been developing the Advanced Stirling Radioisotope Generator (ASRG) for use as a power system for space science missions. As part of the extended operation testing of this power system, the Advanced Stirling Convertors (ASC) at NASA GRC undergo a vibration test sequence intended to simulate the vibration history that an ASC would experience when used in an ASRG for a space mission. This sequence includes testing at workmanship and flight acceptance levels interspersed with periods of extended operation to simulate prefueling and post fueling. The final step in the test sequence utilizes additional testing at flight acceptance levels to simulate launch. To better replicate the acceleration profile seen by an ASC incorporated into an ASRG, the input spectra used in testing the convertors was modified based on dynamic testing of the ASRG Engineering Unit (ASRG EU) at LM. This paper outlines the overall test approach, summarizes the test results from the ASRG EU, describes the incorporation of those results into the test approach, and presents the results of applying the test approach to the ASC-1 &#353 and &#354 convertors. The test results include data from several accelerometers mounted on the convertors as well as the piston position and output power variables.