INVESTIGATION OF BENDING STRESSES IN ASYMMETRIC INVOLUTE SPUR GEAR BY FEA AND PHOTOELASTICITY
Keywords:
Asymmetric gears, Photoelasticity, Bending stess, FEA, ANSYSAbstract
The work presents a method for investigating the bending stress at the critical section of “Asymmetric Involute
spur Gear”. The method ISO/TC- 60 has been used to theoretically calculate the bending stress at the critical section of
this Gear. A 3D photoelasticity method has been used to experimentally find out the stress at the critical section of
symmetric involute spur gear as well as asymmetric involute spur gear. A comparative analysis between theoretical
method, FE method and experimental method to determine bending strength of Asymmetric involute spur gear has been
carried out. The percentage increase in bending strength of the Asymmetric gear has been estimated. A substantial
weight reduction has been achieved by using asymmetric spur gear instead of symmetric spur gear. Asymmetric gears
help to achieve low weight to torque ratio. So, we can build the gearboxes with low weight.
