Question

Flat faced follower’s acceleration when in contact with a circular arc cam is given by _________

(a) ω^2(R-r1)

(b) ω^2(R+r1)sin φ

(c) ω^2(R-r1)cos φ

(d) ω^2(R+r1)cos φ

The question was posed to me at a job interview.

I want to ask this question from Circular Arc Cam with Flatfaced Follower topic in section Cams of Machine Dynamics

Answer 1

Right choice is (c) ω^2(R-r1)cos φ

The best I can explain: The acceleration of the follower is dependent of the following factors:

base circle radius, rotation speed of the cam, cosine of angle of action of cam on the circular flank and radius of circular flank.