NASA LogoNTRSNTRS - NASA Technical Reports ServerSearchmore_vertCollectionsAboutNewsHelpLogin Back to ResultsOverview of the Acoustic Testing of the European Service Module Structural Test Article (E-STA)The European Space Agency (ESA) and their prime contractor Airbus Defense Space (ADS) are developing the European Service Module (ESM) for integration and utilization with other modules of NASAs Orion Multi-Purpose Crew Vehicle. As part of this development, ESA, ADS, NASA and the Lockheed Martin Company performed a series of reverberant acoustic tests in April-May 2016 on the ESM Structural Test Article (E-STA), the mechanical mock-up of the ESM designated for mechanical tests. Testing the E-STA under acoustic qualification loads verifies whether it can successfully withstand the medium and high frequency mechanical environment occurring during the vehicles lift-off and atmospheric phases of flight. The testing occurred at the Reverberant Acoustic Test Facility (RATF) at the NASA Glenn Research Centers Plum Brook Station site in Sandusky, OH, USA. This highly successful acoustic test campaign excited the E-STA to acoustic test levels as high as 149.4 dB Overall Sound Pressure Level. This acoustic testing met all the ESA and ADSs test objectives, including establishingverifying the random vibration qualification test levels for numerous hardware components of the ESM, and qualifying the ESMs Solar Array Wing electrical power system. This paper will address the test objectives, the test articles configuration, the test instrumentation and excitation levels, the RATF site and capabilities, the series of acoustic tests performed, and the technical issues faced and overcome to result in a successful acoustic test campaign for the ESM. A discussion of several test results is also included.Document ID20170007961Acquisition SourceGlenn Research CenterDocument TypeTechnical Memorandum (TM)AuthorsHughes, William*(NASA Glenn Research Center Cleveland, OH United States)*Fogt, Vince*(NASA Johnson Space Center Houston, TX United States)*Le Plenier, Cyprien*(Safran Group Paris, France)*Duval, Francois*(Safran Group Paris, France)*Durand, Jean-Francois*(Safran Group Paris, France)*Staab, Lucas D.*(NASA Glenn Research Center Cleveland, OH, United States)*Hozman, Aron*(NASA Glenn Research Center Cleveland, OH United States)*Mcnelis, Anne*(NASA Glenn Research Center Cleveland, OH United States)*Bittinger, Samantha*(NASA Glenn Research Center Cleveland, OH United States)*Thirkettle, Anthony*(European Space Agency. European Space Research and Technology Center, ESTEC Noordwijk, Netherlands)*Ngan, Ivan*(European Space Agency. European Space Research and Technology Center, ESTEC Noordwijk, Netherlands)*Hayden, Isaac J.*(Lockheed Martin Space Systems Co. Denver, CO, United States)*Date AcquiredAugust 23, 2017Publication DateJuly 1, 2017Subject CategorySpacecraft Propulsion And PowerSpacecraft Design, Testing And PerformanceGround Support Systems And Facilities (Space)Report/Patent NumberNASA/TM-2017-219521GRC-E-DAA-TN43054E-19380Funding Number(s)WBS: WBS 747797.02.11.24.03Distribution LimitsPublicCopyrightPublic Use Permitted.KeywordsQualificationAcousticsTestingTestingQualificationAvailable DownloadsNameType20170007961.pdfSTIcloud_downloadcontent_copyvisibilityRelated RecordsIDRelationTitle20170005397See AlsoOverview of the Acoustic Testing of the European Service Module Structural Test Article (E-STA)20170007285See AlsoOverview of the Acoustic Testing of the European Service Module Structural Test Article (E-STA)visibility_offNo Preview Available
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