A METHOD OF VIRTUAL DISPLACEMENTS FOR ELECTROMECHANICAL SYSTEMS, INCLUDING THOSE WHICH CONTAIN PIEZOELECTRIC CRYSTALS AND MAGNETOSTRICTION ELEMENTS

Abstract

A method of virtual displacements is developed for obtaining the transient or steady state behavior of electromechanical systems which may include piezoelectric crystals and magnetostrictive material. This method involves the association of a number of electric current modes and mechanical displacement modes with generalized coordinates, and gives a set of equations, one for each mode, which resembles the mesh equations of a lumped network. A reciprocity theorem is derived, which is applied to a sonar transducer, and which is of fundamental importance in the calculation of sonar target return. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1962
Accession Number
AD0275484

Entities

People

  • Prescott D. Crout

Organizations

  • Naval Air Weapons Station China Lake

Tags

DTIC Thesaurus Topics

  • Crystals
  • Displacement
  • Electric Current
  • Equations
  • Magnetostriction
  • Materials
  • Piezoelectric Crystals
  • Sonar Targets
  • Sonar Transducers
  • Steady State
  • Targets
  • Transducers

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems