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Metric of Shock Severity

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Document pages: 18 pages

Abstract: Shock response spectrum (SRS) is a widely accepted method for shock testingspecification. However, SRS, as a supremum, is over-conservative and cannotfully describe the relative severity for various shock environments. This studyintroduces shock response matrix, from which shock severity infimum (SSI) canbe extracted using singular value decomposition method. Based on SRS and SSI,dual spectra are introduced to determine the range of shock severity betweenits supremum and infimum. The evaluation of the relative severity of variousshock signals is discussed and validated by finite element simulations.

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