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integration

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hi,
i am doing work on 4th order differential equations and fro that i got a solution in which function is k*dy/dx*dy/dt
now i need to integrate this over length only to find out some force. can you please help me in this, i am not able to do it.
thanks
hemant

3 Replies Last Post 31 août 2011, 01:21 UTC−4

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Posted: 1 decade ago 29 août 2011, 16:11 UTC−4
Integrate k*yx*yt on the segment you are interested in.
Integrate k*yx*yt on the segment you are interested in.

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Posted: 1 decade ago 30 août 2011, 03:11 UTC−4
how to do it
can you please tell me the procedure
how to do it can you please tell me the procedure

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Posted: 1 decade ago 31 août 2011, 01:21 UTC−4
Look in the comsol help for following topics:
1. Defining an Integration Model Coupling
2. Defining Model Couplings
3. Acoustics of a Muffler (example)
Look in the comsol help for following topics: 1. Defining an Integration Model Coupling 2. Defining Model Couplings 3. Acoustics of a Muffler (example)

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