Dynamic analysis of a simplified engine

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

As a part of my final projet, I am doing dynamic analyis on an single cylinder engine, but at around 3000 and 6000 RPM (314 and 628 rad/sec), the forces in vertical direction go mad.

  Since I am doing a rigid body analysis, I do not expect to get any resonance!!!

I have attached some pics for my design and the the force graphs that I get.

would greatly appreciate any explanation.

 

   What's more I need to calculate the moment of the crankshaft, is there a method for that using motionview.

Unable to find an attachment - read this blog

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2017

    Hi,

     

    Can you share the model and what is your objective and other details? You can use File transfer link in my signature below.

     

    You can apply gas forces on piston for more appropriate modelling and check if this gives your any good results.

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