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I have two basic doubts. First of all what is eigen value Problem / eigen value solution ? Next is why this method is used for modal analysis? Is there any type of method can be used for modal analysis?

I have learned, heard,experienced that finite element analysis gives only an approximate solution . Just i need to know that what are all the factors that leads to this approximation?? How can we improve the efficiency of FEA to the highest?

is there any difference between durability analysis and stress analysis? If so what is the difference?

Hi i need to do modal analysis of a sheet metal component. I simulated the component without applying damping. The stress results that i obtained at correspondimg modal frequenies are very high. I think that this unrealistic stress is obtained because of not applying damping factor. Is it...

Hi.. Usually i used to apply some percentage of damping during response analysis.now i need to two know things.. 1.what does the term " representative values for damping" mean? 2.Is it differ from the way of mentioning the damping in certain percentage (say 2 or 3%) note:My analysis is...

thanks picostruct,espcomp.. from your replies i understood that we go for eigen value solution for modal analysis to make the calculation simple and easy. But now my doubt is, Does the modal frequency values will differ with damping and without damping or will it remain same for both cases ...

Why we do not applying damping factor while performing modal analysis? will it not affect the resulting natural frequency values??