In a capitalist society, the way things usually work is that government
and academia focus on research and
development, while industry focuses
on commercialization. The result
is an increasingly wide disconnect in
the applied research sector, which deals
primarily with technology development
and demonstration.
More than 100 years ago, gear
manufacturers were facing
a significant challenge from
industry. The incredible advances in
industrialization and transportation that
occurred at the turn of the 20th century
resulted in incredible growth for gear
makers, but there were significant technical
issues. "The lack of process and product
standardization was a continuing
problem in all U.S. industry. The lack
of industry-wide gear standards meant
there were no standard gear tooth sizes,
ratings, quality definition or consistent
manufacturing methods" (Celebrating
100 Years of Gearing, pg. 22).
This paper demonstrates an application of the tooth interior fatigue fracture (TIFF) analysis method, as implemented in SMT's MASTA software, in which loaded tooth contact analysis (LTCA) results from a specialized 3-D contact model have been utilized to determine the load boundary conditions for analysis of tooth flank fracture (TFF).
There's no substitute for a good
software package in gear manufacturing.
It's a critical shop floor tool
that provides practical engineering services
that customers appreciate. When
you're in the business of specifying and
procuring high quality gears, the software
needs to meet many objectives including
the consideration of all tolerances of
center distance, tooth thickness and tip
diameters, root diameters, fillets, etc. It's
also imperative that the software updates
include the latest revisions to the gear
standards being used in the industry.
Having read about an automobile race in France, Kohlsaat
decided he'd host America's first auto race in Chicago. The year
was 1895 and automobiles were still a great curiosity. Kohlsaat,
owner/publisher of the Chicago Times Herald, planned to exploit
the growing interest in motoring by sponsoring a 54-mile race
from downtown Chicago to nearby suburb Evanston, Illinois,
and back. The match was open to all comers, foreign or domestic,
whether powered by gas, electricity, or steam. The top prize:
$2,000 (that's 50,000 2016 dollars).