The Identification of a Class of Nonlinear System Elements from Linear Measurements.

Abstract

A conventional technique for determining the dynamic characteristics of a linear system element is the application of the Frequency Response method or Pulse Test method. These methods are also often applied to nonlinear elements at one or more operating points for the purpose of obtaining a linearized small signal model for each operating point. The Frequency Response method and Pulse Test method are both well understood and frequently used by control systems engineers for obtaining the linear characteristics of a system element. This report describes a method by which the results of either of these methods may be used to extend them to the class of nonlinear system elements which are described by nonlinear differential equations having coefficients which are functions of the dependent variables. The method is described and applied to the nonlinear modeling of a main forced draft blower. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 15, 1970
Accession Number
AD0714489

Entities

People

  • J. R. Garnett

Tags

DTIC Thesaurus Topics

  • Control Systems
  • Control Systems Engineering
  • Differential Equations
  • Engineers
  • Equations
  • Frequency
  • Frequency Response
  • Linear Systems
  • Nonlinear Differential Equations
  • Nonlinear Systems
  • Systems Engineering
  • Test Methods

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Calculus or Mathematical Analysis
  • Systems Analysis and Design