A NEW METHOD FOR SOLVING TECHNICAL EIGENVALUE PROBLEMS,

Abstract

A new method is developed for obtaining improved (that is, lower) upper bounds to technical eigenvalue problems occurring in mathematical physics. The method is a sort of counterpart to the well-known mathematical techniques of Lord Rayleigh, Ritz, and Galerkin for getting approximate solutions to vibration frequencies and buckling loads. The underlying principle for this new method has come to be known as the Principle of Minimum Complementary Energy vis-a-vis the Principle of Minimum Potential Energy underlying the methods of Rayleigh and Ritz. A numerical example of practical interest is worked out to illustrate the improved results of the new method. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1966
Accession Number
AD0643279

Entities

People

  • R. Grammel

Tags

DTIC Thesaurus Topics

  • Buckling
  • Doppler Effect
  • Eigenvalues
  • Energy
  • Frequency
  • Frequency Shift
  • Germany
  • Potential Energy
  • Vibration
  • West Germany

Fields of Study

  • Mathematics

Readers

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