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Overview of the Acoustic Testing of the European Service Module Structural Test Article (E-STA)
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Author and Affiliation:
Hughes, 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) Show more authors
Abstract: 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.
Publication Date: Jul 01, 2017
Document ID:
20170007961
(Acquired Aug 28, 2017)
Subject Category: SPACECRAFT DESIGN, TESTING AND PERFORMANCE; SPACECRAFT PROPULSION AND POWER; GROUND SUPPORT SYSTEMS AND FACILITIES (SPACE)
Report/Patent Number: NASA/TM-2017-219521, E-19380, GRC-E-DAA-TN43054
Document Type: Technical Report
Publication Information: (SEE 20170007285; 20170005397)
Contract/Grant/Task Num: WBS 747797.02.11.24.03
Financial Sponsor: NASA Glenn Research Center; Cleveland, OH United States
Description: 40p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: ACOUSTIC MEASUREMENT; CREW EXPLORATION VEHICLE (CONSTELLATION PROGRAM); EUROPEAN SPACE AGENCY; LOADS (FORCES); PERFORMANCE TESTS; SERVICE MODULES; SOUND PRESSURE; STRUCTURAL ANALYSIS; VIBRATION TESTS; ATMOSPHERIC EFFECTS; LIFTOFF (LAUNCHING); SOLAR ARRAYS; TEST FACILITIES; WINGS
Other Descriptors: ACOUSTICS; TESTING; QUALIFICATION; TESTING; QUALIFICATION
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