A symmetrical tangent cam operating a roller follower has the following particulars: Radius of base circle of cam = 40 mm, roller radius = 20 mm, angle of ascent 75°, total lift = 20 mm, speed of cam shaft 300 r.p.m. Determine : 1. the principal dimensions of the cam, 2. the equation for the displacement curve, when the follower is in contact with the straight flank, and 3. the acceleration of the follower when it is in contact with the straight flank where it merges into the circular nose. [Ans. r, = 33 mm ; 0 = 23.5° ; 89.4 m/s³]

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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13. A symmetrical tangent cam operating a roller follower has the following particulars :
Radius of base circle of cam = 40 mm, roller radius = 20 mm, angle of ascent = 75°, total lift = 20
mm, speed of cam shaft = 300 r.p.m.
Determine : 1. the principal dimensions of the cam, 2. the equation for the displacement curve,
when the follower is in contact with the straight flank, and 3. the acceleration of the follower when
it is in contact with the straight flank where it merges into the circular nose.
[Ans. r, = 33 mm ; e = 23.5° ; 89.4 m/s]
Transcribed Image Text:13. A symmetrical tangent cam operating a roller follower has the following particulars : Radius of base circle of cam = 40 mm, roller radius = 20 mm, angle of ascent = 75°, total lift = 20 mm, speed of cam shaft = 300 r.p.m. Determine : 1. the principal dimensions of the cam, 2. the equation for the displacement curve, when the follower is in contact with the straight flank, and 3. the acceleration of the follower when it is in contact with the straight flank where it merges into the circular nose. [Ans. r, = 33 mm ; e = 23.5° ; 89.4 m/s]
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