APPLICATION OF VARIATIONAL EQUATION OF MOTION TO THE NONLINEAR VIBRATION ANALYSIS OF HOMOGENEOUS AND LAYERED PLATES AND SHELLS

Abstract

An integrated procedure is presented for applying the variational equation of motion to the approximate analysis of nonlinear vibrations of homogeneous and layered plates and shells involving large deflections. The procedure consists of a sequence of variational approximations. The first of these involves an approximation in the thickness direction and yields a system of equations of motion and boundary conditions for the plate or shell. Subsequent variational approximations with respect to the remaining space coordinates and time, wherever needed, lead to a solution to the nonlinear vibration problem. The procedure is illustrated by a study of the nonlinear free vibrations of homogeneous and sandwich cylindrical shells, and it appears to be applicable to still many other homogeneous and composite elastic systems.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1962
Accession Number
AD0289868

Entities

People

  • Yi-yuan Yu

Organizations

  • New York University Tandon School of Engineering

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Boundaries
  • Coefficients
  • Contracts
  • Differential Equations
  • Displacement
  • Elastic Properties
  • Equations
  • Equations Of Motion
  • Frequency
  • Government Procurement
  • Linear Differential Equations
  • Mechanical Engineering
  • Modulus Of Elasticity
  • Scientific Research
  • Shear Modulus
  • Variational Equations

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Dynamics.

Technology Areas

  • Space