Accession Number : AD0774262

Title :   Dynamic Analysis of Open Loop Mechanisms. Part I.

Descriptive Note : Final rept.,

Corporate Author : ARMY WEAPONS COMMAND ROCK ISLAND ILL GENERAL THOMAS J RODMAN LAB

Personal Author(s) : Williams,Robert J.

Report Date : NOV 1973

Pagination or Media Count : 157

Abstract : The report contains the analysis performed to derive the differential equations of motion for a general, open loop, spatial mechanism using the Lagrangian energy approach. The derivation uses closed loop (4x4) transformation matrix methods which are modified so they can be used in the analysis of open loop mechanisms. The report (and the analysis) is divided into two parts. In Part I, the equations necessary to analyze the motion of a mechanism, which can have only force inputs, are derived. A FORTRAN computer program called DYNAMO (DYNamic Analysis of Mechanisms-Open Loop) was written to implement the equations of motion. The final version of the program, which automatically sets up and solves the equations of motion, can perform both dynamic motion analysis and dynamic force analysis of an open loop mechanism. (Modified author abstract)

Descriptors :   *OPEN LOOP SYSTEMS, *DYNAMICS, *MATRICES(MATHEMATICS), TRANSFORMATIONS(MATHEMATICS), EQUATIONS OF MOTION, DEGREES OF FREEDOM, COMPUTER PROGRAMS, FORTRAN

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE