A Proposed Method to Standardize Shock Response Spectrum (SRS) Analysis (To Provide Agreement between Tests Performed at Different Facilities)

Discussions among practitioners of the art of shock-testing and a series of "round-robins" have shown that the results obtained from mechanical shock experiments performed in different laboratories vary widely. To emphasize the problem, it has been found that different generations of hardware/software systems from one of the major system vendors produce results that disagree by up to 30%. The paper shows that such parameters as anti-alias filter characteristics, AC-coupling strategies, and analysis algorithm/strategy can strongly effect the results and that they are not applied uniformly by system suppliers or users. This paper presents an analytical procedure that may be applied to achieve agreement between the data sets that are acquired and analyzed by different laboratories.

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