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Toronto Metropolitan University *

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411

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Mechanical Engineering

Date

Apr 3, 2024

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pdf

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3

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Ryerson University Department of Mechanical and Industrial Engineering MEC411 Final Evaluation, Part 3, Winter 2020 April 9 th Duration: 45 minutes Instructor: Kourosh Zareinia This examination is OPEN TEXTBOOK. Please show all your work in the space below each question. NAME: ID: By submitting my exam online: " I solemnly declare that I will complete this examination independently, with full compliance to the Senate Policy 60 Academic Integrity, and meeting the requirements stated in the examination. "
Question A. Consider the following input parameters for a disk cam with a translating knife edge follower with zero offset (CAM rotates in CCW direction): Base circle diameter ࠵? " = 4.0 ࠵?࠵? Interval Initial angle for interval (deg) Final angle for interval (deg) Type of motion Rise (+) or Return (-) cm 1 0 135 Parabolic 2.5 2 135 225 Dwell 0 3 225 360 Harmonic -2.5 i) Compute the follower displacement for these angles analytically using equations in the textbook: ( ࠵? = 45°,85°, 150°, 180°, 250°,320° ) ii) Plot the displacement diagram iii) Construct the cam profile graphically.
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