Two Stage Gear Tooth Dynamics Program
Abstract
The purpose of this contract was to expand the epicyclic gear dynamics program to add the option of evaluating the tooth pair dynamics for two epicyclic gear stages with peripheral components. This was a practical extension to the program, as multiple gear stages are often used for speed reduction, space, weight, and/or auxiliary units. The option was developed for either stage to be a basic planetary, star, single external-external mesh, or single external-internal mesh. The two stage system allows for modeling of the peripherals with an input mass and shaft, an output mass and shaft, and a connecting shaft. Execution of the initial test case indicated an instability in the solution with the tooth pair loads growing to excessive magnitudes. A procedure to trace the instability is recommended as well as a method of reducing the program's computation time by reducing the number of boundary condition iterations. Keywords: Gear tooth dynamics; Gear tooth stresses; Two stage dynamics; Epicyclic gears.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1989
- Accession Number
- ADA216002
Entities
People
- Linda S. Boyd
Organizations
- United Technologies Corporation