Camshaft Analysis

[zjaved2]

I have been assigned to perform a dynamic loading analysis of a camshaft both the normal one and the overhead ones. Now if anyone will be kind enough to answer these questions i would really appreciate it:
1) is there a difference between dynamic loading and a simple stress analysis of rotating camshaft?
2) will the type of followers being used in the camshaft affect the stress analysis

any help will be really appreciated

 

[Kaz Z06]

zjaved2,

Could you please explain what you mean by "normal one and the overhead ones."? There are 5 main types of engine valve trains (if this is the system you are working with). Four of these are "overhead" and one is "cam-in-block", or "push-rod". If you call "simple stress analysis of rotating camshaft" the analysis of the cam-follower using F=M * A, then there can be a big difference from it to "dynamic loading". It is very speed-dependent.

If you investigate typical Hertzian contact stress calculations for various geometries, you'll find the answer to your second question. For example - flat on cylinder, cylinder on cylinder, crowned cylinder on cylinder, etc.

 

[zjaved2]

@ Kaz Z06
that is exactly what i mean by the normal and overhead ones ( i am sorry i didn't know the correct term), and as for the stress analysis goes, i am not sure about that for my group members have just asked me to do it using pro e ( which i am still learning how to use ). So i guess i will have to do the dynamic loading analysis. And can you please clear whether these can be performed with pro e or not.

Once again really appreciate all the help.