Rigidity Analysis
The deflection at the pinion, in the y-direction can be found using the following equation:
Note: If a=b, first simplify the equation before solving by using a=b=l/2
where:
B is the deflection in the y-direction at the pinion location (B)y
W
t is the tangential force acting on the piniona is the distance between points A & B
b is the distance between points B & C
E is the Young's Modulus of Elasticity for the material of the shaft (Carbon Steel)
I is the 2nd moment of area of the shaft at the location of the pinion = p d4/64
l is the total distance between points A & C
Similarly, find the deflection (zB) at B (pinion location), in the z-direction using Wr instead of Wt, and calculate the total deflection at the pinion using the following equation: