Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 1 (Q.No. 4)
4.
For high speed engines, the cam follower should move with
Discussion:
16 comments Page 1 of 2.
Rafa said:
1 decade ago
All the first 3 motions have infinite acceleration at starting of the motion so this induces thrust which damages the cam so to avoid this we use cycloidal motion.
Asnmrir said:
1 decade ago
When the cam is rotating with high speed then the follower has ability to escape from above the cam to avoid it we used cycloidal follower in case of high speed.
Divyesh patel said:
1 decade ago
So when the first 3 motions are used ?
Abbas K A said:
1 decade ago
A beam having dimensions 75x75x6000 mm using this data how can we find out the weight?
Jay said:
1 decade ago
At high speed the acceleration at the start become infinity at all speed so only cycloidal manner is best suited for this action.
Paras yadav said:
1 decade ago
So when the first 3 motions are used ?
Dev said:
1 decade ago
Constant velocity is not practically applicable. SHM and constant acceleration can be used for low or moderate speeds; but there will be jerks.
Sajan kulkarni said:
9 years ago
Why is cycloidal follower best suited in high-speed applications?
Srikanth Burra said:
9 years ago
The cycloidal cam profile is best suited for high-speed applications because the successive derivatives of the function, ie. velocity, acceleration, and jerk are continuous functions rather than step functions, throughout the motion. Due to this continuity the bearings of the cam and follower are least prone to cyclic stresses, This improves the service life and no noise is present.
Sunny said:
9 years ago
Thanks to all for the explanation.
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