Shock Spectrum Calculation from Acceleration Time Histories

Abstract

The report mainly discusses, compares, and derives one new and improved and two popular shock spectrum computation methods. The new one is a single recursive equation method that approximates the acceleration as a straight line between the digitized values. The new method is easily derived without recourse to Z Transform theory and, thus, should contribute to improved understanding of the computations. A new source of low frequency error common to all of the calculation methods was found, and empirical testing of the coefficients was used to establish digitizing rules to avoid the error. A FORTRAN listing of a program using the new method is given in an appendix.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA097162

Entities

People

  • H. A. Gaberson

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerospace Industry
  • Birds
  • Civil Engineering
  • Computations
  • Computer Programs
  • Computers
  • Engineering
  • Frequency
  • Great Lakes
  • New York
  • Plastic Explosives
  • Puget Sound
  • Resonant Frequency
  • Second World War
  • Shock Response Spectra
  • Spectra
  • Time Intervals

Readers

  • Calculus or Mathematical Analysis
  • Computer Science.
  • Regression Analysis.