Question: How to use Maple to take a variation of bulky PDE?

Hi All,

To get EOM of a specific type of vibrating shell structure, I constructed the Hamilton equation of the system with messy and complex integrand (so many derivatives and variables are included). Now I have to calculate the variation of the Hamilton equation (del(int((T+U-V),t=t0..t1)=0) to get the EOMs and BCs of the system.

Is there anybody to know how to take a variation of such bulky integral in Maple?

Is there anyone to have experience in finding the EOM of shell structure using variational calculus in Maple?

Any comment will be useful.



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