Accession Number:

AD0269426

Title:

AUTOMATIC COMPUTATION OF ROOT LOCUS USING DIGITAL COMPUTER

Descriptive Note:

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1961-08-01

Pagination or Media Count:

1.0

Abstract:

The problem of computing the root locus is transformed into the format of repeated solutions of the characteristic equation expressed as a polynomial equation of degree N. To resolve the problem of convergence, a simultaneous Newton-Raphson and Bairstow iteration, with substitution of variables when required, is employed to solve the polynomial equation. By means of a systematized iterative rocess, a program is developed in FORTRAN language for the IBM 1620 which computes the root locus automatically. Several root loci formed by plotting the roots evaluated by the computer, which are accurate to at least four figures, are provided in the Appendices. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE