A Transformation Method for the Evaluation of the Response Moments of Elastic Structures with Random Properties

Abstract

In this investigation a new method for computing the first and second moments of the displacement response of linear elastic structures with random stiffness and damping is developed. The method accurately computes the mean and variance of the displacement of a dynamically loaded structure as functions of time. The probability that the displacement will be greater than a specified value is also computed. The results of the transformation method are compared to exact solutions for a number of cases. The influence of the randomness in the underlying parameters on the randomness of the response is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1985
Accession Number
ADA156882

Entities

People

  • Raymond H. Bennett

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Civil Engineering
  • Data Science
  • Differential Equations
  • Dynamic Response
  • Engineering
  • Equations Of Motion
  • Frequency
  • Information Science
  • Mechanics
  • New Mexico
  • Random Variables
  • Safety Analysis
  • Standards
  • Stochastic Processes
  • Structural Response
  • Test And Evaluation
  • White Noise

Fields of Study

  • Engineering
  • Mathematics

Readers

  • Regression Analysis.
  • Structural Dynamics.