Quote:
Originally Posted by Travis Schuh
How were you able to calculate the strength of the components?
Thanks, Travis
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For gear tooth strength, we used the Barth revision of the Lewis bending forumula. For other strengths, we used other bending eqns, torque eqns, and shear strength eqns depending on the part we were analyzing.
We also did finite element analysis on all of the components to verify that our initial calcs were correct.
Here is an example of the FEA for the 80 tooth gear. These parts were subjected to two 20 KSI loads on the gear teeth, ~ 90 degrees apart.
Stress Distribution
Displacement
__________________
-Travis Covington
2008-2017 - Engineering Mentor of
Team 254
2001-2008 - Engineering Mentor of
Team 968
1998-2001 - Mechanical Director/Driver/Member of
Team 115