Vibration Analysis Applied to the Motions of a Gas Turbine Engine

Abstract

A method has been suggested to compare and evaluate vibration environments or sinusoidal and random specifications through the use of a single analysis technique. The comparison methodology utilized in this analysis could be significantly implemented and exploited in interpreting spectrum analysis results of vibration data such as in the analysis of a gas turbine engine of a modern tank. A generalized, multi-degree-of-freedom (DOF) lumped parameter structural system model was used to allow an initial evaluation of the environments such as shock, sine, and random so as to possibly eliminate a detailed separate dynamic analysis for each environment Results indicate a possible reduction of analysis time and costs. In addition, since both sine and random analyses depend heavily on modal damping assumptions for the accuracy of their predictions, the simple methodology proposed herein should prove to be useful and productive.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1998
Accession Number
ADA352911

Entities

People

  • T. A. Korjack

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Coordinate Systems
  • Differential Equations
  • Engines
  • Environment
  • Equations
  • Equations Of Motion
  • Frequency
  • Gas Turbines
  • Military Research
  • Molecular Dynamics
  • Resonant Frequency
  • Spectra
  • Spectrum Analysis
  • Standards
  • Transient Response Analysis
  • Turbines
  • Vibration

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • Systems Analysis and Design