RAPID APPROXIMATION OF SERVOMECHANISM FREQUENCY RESPONSE.
Abstract
The purpose of this thesis was to develop a technique by which the frequency response of a servomechanism might be rapidly evaluated by graphical methods. The approach consisted of developing several frequency response parameters related to the location of the poles and zeros of the closed loop transfer function of a servomechanism. The systems considered were the pure second order (one pair of complex conjugate poles), second order with one zero (one pair of complex conjugate poles and one real zero), and a pure third order (one pair of complex conjugate poles and one real pole). For the latter two systems, the complex poles and the frequency were redefined as referred values relative to the real pole or zero. Loci of constant frequency response parameters were mapped onto a complex plane; or loci of constant imaginary referred pole locations were mapped onto an auxiliary complex plane, depending upon the specific system considered. Using the points obtained from the appropriate relationship, the frequency response, M and N contours, could be rapidly and easily sketched. The M and N contours could then be used as a basis for rapid system evaluation in the frequency domain.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0482371
Entities
People
- Vaughn E. Wilson Jr.
- William F. Sallada
Organizations
- Naval Postgraduate School