Experimental Modal Analysis of the Advanced Combat Helmet

Abstract

In this work we present a study of the characterization of an Advanced Combat Helmet (ACH) using experimental modal analysis techniques. A medium-sized helmet was impacted at different location and the vibration response was used to estimate a global frequency model. This was achieved using the modal parameters of the local models obtained for a specific input-output location and combining them in a global model. The estimation of the frequency model was done using least squares techniques, while the contribution of measurement noise in input and output was considered.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2011
Accession Number
ADA553598

Entities

People

  • Alessio Medda
  • Cameron D. Bass
  • Jay Shridharani
  • Valeta C. Chancey

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Blast
  • Computations
  • Congress
  • Copyrights
  • Dynamic Response
  • Engineering
  • Equations
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Governments
  • Measurement
  • Mechanical Engineering
  • Modal Analysis
  • Power Spectra
  • Resonant Frequency
  • Vibration

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • Military Engineering.