Analytical and Experimental Investigation of the Damping Characteristics of Bolted and Welded Structural Connections for Plates and Shells

Abstract

The design of the structural connections is important from the standpoint of reducing system vibration amplitudes or enhancing joint damping capacity. A state-of-the-art review was performed and a generic experimental model was developed and constructed. The test model consists of two concentric circular cylindrical shells and four vanes connected by groups of bolts. First, a finite element model was developed and analyzed, using the MSC/NASTRAN computer program. The first analysis was a modal survey of the model to investigate dynamic characteristics of the whole system. Secondly a frequency response analysis gave the input/output relationship between an input point (excitation) and an output point (response) in the frequency domain, which depends on the damping characteristics of the structure.

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Document Details

Document Type
Technical Report
Publication Date
Oct 12, 1986
Accession Number
ADA175854

Entities

People

  • Jonathan C. Iverson
  • Kilsoo Kim
  • Young-sik Shin

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Amplitude
  • Cantilever Beams
  • Computer Programs
  • Dynamic Response
  • Flexible Structures
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Gas Turbines
  • Literature Surveys
  • Mechanical Properties
  • Mechanics
  • Modal Analysis
  • Resonant Frequency
  • Turbines
  • Vibration
  • Waves

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Structural Dynamics.