A cam, with a minimum radius of 25 mm, rotating clockwise at a uniform speed is to be designed to give a roller follower, at the end of a valve rod, motion described below : To raise the valve through 50 mm during 120° rotation of the camTo keep the valve fully raised through next 30°To lower the valve during next 120°; andTo keep the valve closed during rest of the revolution i.e. 90° ;The diameter of the roller is 20 mm and the diameter of the cam shaft is 25 mm. The displacement of the valve, while being raised and lowered, is to take place with simple harmonic motion. c) Draw the displacement, the velocity and the acceleration diagrams for one complete revolution of the cam.

Given: R=25 mm= 50 mm To raise the valve through 50 mm during 120° rotation of the cam To keep the…

Answered: Draw the displacement, the velocity and…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A cam, with a minimum radius of 25 mm, rotating clockwise at a uniform speed is to be designed to give a roller follower, at the end of a valve rod, motion described below :

To raise the valve through 50 mm during 120° rotation of the cam
To keep the valve fully raised through next 30°
To lower the valve during next 120°; and
To keep the valve closed during rest of the revolution i.e. 90° ;

The diameter of the roller is 20 mm and the diameter of the cam shaft is 25 mm. The displacement of the valve, while being raised and lowered, is to take place with simple harmonic motion.

c) Draw the displacement, the velocity and the acceleration diagrams for one complete revolution of the cam.

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