PLEASE HELP. I obviously have the answers already, but I would like an indepth e

Question

PLEASE HELP. I obviously have the answers already, but I would like an indepth explanation/calculations/visuals to actually understand how they came to the answers as follows. Thank you very much in advance!

5. In this problem we design a plate cam with a roller follower as shown in Figure 5. Ro is the radius of the prime circle, and e is the offset. Figure 5 The pressure angle ? is computed as where the displacement of the follower is y1- cos 0. For various candidates for Ro and e, the maxima of the pressure angle are shown in Figure 6 (1) If the pressure angle should be limited as ?

Explanation / Answer

take limiting case where ? = 20

sin 20= 0.342

tan 20= 0.364

cos20 = 0.94

y' = sin 20 = 0.342

y= 1-cos20 = 0.06

tan 20 = 0.342/ ( R0 + 0.06)

R0 = 0.342/ 0.364 -0.06 = 0.88

not clear about the table.

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