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RLOAD

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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English

OptiStruct

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.

Hi Prakash Thanks for your reply

I would still like to know what physical quantity does this C represent or how it is tio be modelled.

HI,

C is the dynamic parameter (time or frequency function) (TABLEDi) in the Equation.