A disc Cam Mechanism is to provide the motion shown in table 1.
(a) Plot the displacement diagram
(b) Find the profile for a cam with a base radius of 4 cm (Assume knife edge follower)
(c) If the rotational speed of the cam is 240 rpm, what would be the dwell time in seconds and how long will it take the follower to rise and fall (seconds).
(d) Find the speed and the acceleration of the follower at the mid-rise point.
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Parameter →
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Initial Angle
for Interval
(degrees)
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Final Angle
for Interval
(degrees)
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Type of Motion
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Rise (4) or
Return (-)
(cm)
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Interval ↓
|
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1
|
0
|
100
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Harmonic
|
1,2
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2
|
100
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240
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Dwell
|
0
|
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3
|
240
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360
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Parabolic
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-1.2
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