RLOAD

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

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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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2015

    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.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2015

    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.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2015

    HI,

     

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

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