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Hallo I am having following questions


 


1) I am doing Modal Frequency response simulation


In  RLoad load collector  there is field called TC (see attached file) which expects input in tabular form  i have solver deck


in it the values in table is


 


 


X(1)= 0.0 Y(1)= 1.0, X(2)= 5000 , Y(2)= 1.0


 


what is this C ( Damping?), Is it material dependant? how is this tabular input defined


 


2) There is SDamping Control Card


I want to know how is the the value of g defined in TABDMP1 table in my case it is 0.02. Is it default? Again is it Material dependent?


 


Thanks and Regards


Pratik


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Hi Pratik,


 


TABLEDi define C, In other words TC is the C in the equation.


 


Assuming you are apply a structural damping then you have to select CRIT as type in TABDAMPi card. Here G is 2*Critical damping.


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