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pratikhyperworks

Defining constraint

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Hello Group


 


I wanted to know whether its is possible to define output as a constraint in optimisation.


 


I am validating my modell with frequency response test


 


I want to vary values of  Material properties like Emodulus, G modulus so that at certain frequencies Frequency Response Function FRF (velocity) is say (+\- 10 % ) of the FRF calculated by test.


 


eg


 


Vary values of


 


E = 1000 mpa to 2000 mpa


G= 200 mpa to 400 mpa


 


so that


at node 256


 


Frq         frf (test)     frf(simulation)


5hz          0.256         (+/- 0.01) of 0.256


10hz        0.586         (+- 0.01) of 0.586


15 hz       1.457          (+- 0.01) of 1.457 etc


 


Is it possible to define constraint this way


 


a suggestion or example tutorial would be quit helpful


 


Thanks and Regards


Pratik


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