measuring stress in a gear
measuring stress in a gear
(OP)
Any one has any experience with measuring stresses in the tooth foothradius of a gear while gear is being tested on a electric pulsator-rig?
Gear is modulus 2.5!
Possible methods are strain-gauges, ESPI ...
Other methods ??
Gear is modulus 2.5!
Possible methods are strain-gauges, ESPI ...
Other methods ??





RE: measuring stress in a gear
RE: measuring stress in a gear
Another technique that comes to mind is Brittle Coatings. These are applied to the structure - usually sprayed. When the parts are loaded, cracks for in the coating perpendicular the the principal axes of the stress / strain field. Like, Photoelasticity, you can then determine the strains and stresses fron the crack field.
There are also thermographic techniques that might work; but I'm not well versed with those.
A good book on many experimental techniques is:
"Experimental Stress Analysis" by James W. Dally and William F. Riley.
RE: measuring stress in a gear
www.stressphotonics.com
They supply and support thermoelastic and photoelastic equipment and analyses