Cam design for high-speed engines: Choose suitable follower motion law. Objective: Minimise shock/jerk and ensure smooth acceleration at high speeds in cam-follower systems. Select the most appropriate follower motion.
Mechanical Engineering
Theory of machines
Difficulty: Easy
Choose an option
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AUniform velocity motion
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BSimple harmonic motion
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CUniform acceleration and retardation
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DCycloidal motion
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EParabolic motion
Answer
Correct Answer: Cycloidal motion
Explanation
ConceptCycloidal motion provides zero jerk at the start and end of stroke (continuous acceleration profile), making it ideal for high-speed cams where dynamic forces must be minimised.
Why not others?Uniform velocity and SHM introduce higher jerk; uniform acceleration/retardation has jerk discontinuities at segment junctions.
Final AnswerCycloidal motion