ABACUS. User's Manual

摘要

This report serves as a user's manual for the beam analysis program ABACUS developed by the Structural Mechanics Section. The computer program is an implementation of a beam theory developed in a series of papers collected in a forthcoming Risoe report. It is a program for static and dynamic analysis of pretwisted beams with solid or cellular cross section having moderate wall thickness and moderate cross sectional variation. Typical applications are calculations of eigenfrequencies and mode shapes for rotor blades in axial ventilators, compressors and turbines. The program also calculated cross sectional properties and stress distributions over the cross section. The program is batch oriented and the programming language is Fortran 77. The code fully complies with the ANSI FORTRAN 77 FULL LANGUAGE STANDARD, this insuring program portability. (ERA citation 10:008532)