NASA-STD-7001A, NASA TECHNICAL STANDARD: PAYLOAD VIBRO-ACOUSTIC TEST CRITERIA (20-JAN-2011)

NASA-STD-7001A, NASA TECHNICAL STANDARD: PAYLOAD VIBRO-ACOUSTIC TEST CRITERIA (20-JAN-2011)., The term “vibroacoustics” is defined as an environment induced by high-intensity acoustic noise associated with various segments of the flight profile. Vibroacoustics manifests itself throughout the payload in the form of transmitted acoustic excitation and as structure-borne random vibration. This Standard specifically addresses the acoustic and random vibration environments and test levels. The primary objective of this Standard is to establish a uniform usage of test factors in the vibroacoustic verification process for spaceflight payload hardware. This Standard provides test factors for verification of payload hardware for qualification, protoflight, and flight acceptance programs. In addition, minimum workmanship test levels are included. With the exception of minimum workmanship test levels, these levels are provided in relation to the maximum expected flight level (MEFL). Although the major emphasis of this Standard is on test levels, the Standard also covers test duration, test control tolerances, data analysis, test tailoring, payload fill effects, and analysis methods. This Standard defines procedures for developing vibroacoustic test criteria for NASA payloads. This document also presents methods for acceptance and qualification vibroacoustic testing, for statistical analysis of vibroacoustic data, and analysis methods for determining criteria. Minimum acoustic and random vibration workmanship test levels are specified. This Standard only applies to NASA payloads and payload components and is not retroactive to the approval date of this Standard.