Accession Number:

ADA239129

Title:

Comparison Study of Gear Dynamic Computer Programs at NASA Lewis Research Center

Descriptive Note:

Technical paper

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Personal Author(s):

Report Date:

1989-03-01

Pagination or Media Count:

31.0

Abstract:

A comparison study was performed on four gear dynamic analysis computer programs developed under NASAArmy sponsorship. These programs are GRDYNMULT a multimesh program applicable to a number of epicyclic systems, TELSGE a single mesh program, PGT a multimesh program applicable to a planetary system with three planets, and DANST a single mesh program. The capabilities and features, input and output options, and technical aspects of the programs were reviewed and compared. Results are presented in a concise tabular form. Parametric studies of the program models were performed to investigate the predicted results of the programs as input parameters such as speed, torque, and mesh damping were varied. In general, the program models predicted similar dynamic load and stress levels as operating conditions were varied. Flash temperature predictions from programs GRDYNMULT and TELSGE indicated similar trends however, actual values were not in close agreement. The program GRDYNMULT was found to be the most versatile in system size, type, and analysis capabilities. The programs DANST, TELSGE, and PGT are more specialized for specific systems however, in specific areas they provide a more detailed treatment than GRDYNMULT.

Subject Categories:

  • Computer Programming and Software
  • Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE