A Study on Fragility Assessment for Equipment in a Shock Environment

Abstract

In this report, the Damage Boundary Theory and related analysis using the Shock Response Spectrum have been investigated. In particular, physics-based computer modeling and simulation using the MSC/NASTRAN code has been performed for the case of a rotational drop test model. Application of the Damage Boundary Theory and subsequent analysis using the Shock Response Spectrum is useful in understanding the isolation level of packaging systems. The results of the computer simulations show the effects of the flexibility in the equipment and nonlinearity of the shock mounts analyzed in this research. The data from these simulations have been compared with the shock test specification, MIL-STD-810.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2009
Accession Number
ADA513796

Entities

People

  • Beomsoo Lim
  • Jerema M. Didoszak

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Center Of Gravity
  • Computer Simulations
  • Computers
  • Cushioning
  • Drop Tests
  • Engineering
  • Environment
  • Packaging
  • Resonant Frequency
  • Shock Response Spectra
  • Shock Tests
  • Simulations
  • Specifications
  • Spectra
  • Standards
  • Test Methods

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Computational Modeling and Simulation
  • Structural Dynamics.