In: Mechanical Engineering
Design a double-dwell cam to move a follower from 0 to 2.5 in.
in 60°, dwell for 120°, fall 2.5 in. in 30°, and dwell for the
remainder. The total cycle must take 4 sec. Size the cam for a
1-in. radius roller follower considering pressure angle and radius
of curvature. Use eccentricity only if necessary to balance these
functions. Plot both these functions. Draw the cam profile. Repeat
this for a flat-faced follower. Which one would you use?