THE RAPID CALCULATION OF FREQUENCY RESPONSES FOR LINEAR SYSTEMS INVOLVING TIME-DELAYED TERMS (FPRTRAN PROGRAM FRP Mk 2

摘要

A program entitled FRP Mk 1 f for computing the frequency response of a linear system, with transport delays, has been developed previously. The present report considers the minimisation of time and storage requirements. In particular, if the system is described by a set of first order differential and algebraic equations, some variables, specified by the programmer may be eliminated by the computer. The method is incorporated in the KDF 9/EGDON code FRP Mk 2, and includes special non-numeric, compiler subroutines for input of the equations and other data in a simple form orientated towards the analyst.nThe input scheme used for the equations is compatible with that used for the pole-zero, or transfer function program, ZIP (ref. 1 ) so that the same card-deck may be used for data entry in both codes.nThe code FRP Mk 2 was designed to be used for the analysis of nuclear reactor power systems, but is equally applicable to most forms of process plant, especially chemical plant.