A TECHNIQUE OF ANALYSIS OF SYSTEMS CONTAINING MULTIPLE-RONLINEARITY AND ITS APPLICATION IN SPECIFIC CASES

Abstract

This dissertation deals with a simple technique for deriving frequency-domain.• stability criteria for, multiple. nonlinear feedback systems. The technique is essentially as follows: A method--for finding out describing functions of the nonlinear elements of multiple-nonlinear system is discussed. The linear systems with the non»linearities are replaced by their desc-rijbing function and the system is analysed by using Routh-Hurwitz stability criterion. A proof of its applicability is given along with examples which illustrate the technique.