Design and Analysis Methods for Equipment Emulation in the Shock Qualification of Deck Structures

Abstract

An important goal in the design of many large structures, such as ships and buildings, is the isolation of attached equipment from shock and vibration loads. Due to the high fabrication cost of such structures, extensive dynamic analysis of design concepts is carried out using finite element models and scaled mechanical models. The validity of such testing depends on the fidelity of the models employed. The finite element codes and scale modeling techniques currently in use, however, do not always achieve the requisite level of fidelity. This research project focused on the creation of analytical tools for the design of efficient, high-accuracy structural models. Two specific examples were studied in this research: (1) the modeling of distributed damping materials, and (2) the design of mechanical emulators for modally dense equipment.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2000
Accession Number
ADA390458

Entities

People

  • Pierre E. Dupont

Organizations

  • Boston University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Box Beams
  • Data Analysis
  • Differential Equations
  • Engineering
  • Experimental Data
  • Fabrication
  • Frequency Domain
  • Granular Materials
  • Materials
  • Measurement
  • Mechanical Engineering
  • Modal Analysis
  • Modulus Of Elasticity
  • Resonant Frequency
  • Shock Response Spectra
  • Vibration
  • Waves

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Software Engineering
  • Structural Dynamics.