Direct Field Acoustic (DFA) Testing was successfully completed on the Exploration Flight Test-1 (EFT-1) crew module at the Lockheed Martin Waterton Reverberant Acoustic Lab (RAL) on March 1, 2016. DFA Testing is an alternative method for spacecraft module acoustic qualification and acceptance verification that is being investigated for use in the Orion program. Its portability would allow testing at KSC and eliminate the transportation risks and associated cost and schedule of performing this verification activity off-site. Two configurations were tested; one representing the future reverberan
Direct Field Acoustic (DFA) Testing was successfully completed on the Exploration Flight Test-1 (EFT-1) crew module at the Lockheed Martin Waterton Reverberant Acoustic Lab (RAL) on March 1, 2016. DFA Testing is an alternative method for spacecraft module acoustic qualification and acceptance verification that is being investigated for use in the Orion program. Its portability would allow testing at KSC and eliminate the transportation risks and associated cost and schedule of performing this verification activity off-site. Two configurations were tested; one representing the future reverberant acoustic comparison test and one representing the future configuration for the Artemis I crew module. A mock-up of the service module without the fairings will also be tested to gather volumetric data to decide viability of performing DFA Testing on the Static Test Article (STA) SM in the 2016 Fall. Data will be used to develop predictive algorithms for future tests.
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Keywords: eft-1, lockheed, martin, orion, speaker, test
