Dynamic analysis of a Component

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

Hello,

 

I want to know the procedure for performing the dynamic analysis of a component using the optistruct.

 

The following are the conditions.

 

1.    50-500 hz frequency

2.    15g acceleration.

 

 

Can you please let me know know how to perform the analysis.

 

 

Regards,

 

Rajesh.

Tagged:

Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2015

    Hi Rajesh,

     

    Please refer to the below tutorials:

    OS-1300: Direct Frequency Response Analysis of a Flat Plate

     

    OS-1305: Modal Frequency Response Analysis of a Flat Plate

     

    Please note: If you are a commercial customer, you can contact your local support @ http://www.altairhyp...ortProduct.aspx

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited July 2015

    Hi,

     

    Please find attached Direct Frf tutorial using Optistrcut solver.

    Instead of DAREA create a unit load in a particular direction of type SPCD. 

     

    Under RLOAD refer the Spcd load collector for exciteid and the last field on RLOAD can be changed to ACCE.

     

    Regards

    Rahul R


     

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited September 2017

    Hi Rahul,

     

    Can you please let me know, why we have to use SPCD instead of DAREA ?

     

    The example shows we have to use DAREA.


    Regards,

    Shree

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited September 2017

    Hi Shreerang,

    Both SPCD and DAREA are the load type cards used to represent a dynamic excitation.

    DAREA is used to represent simple point forces / loads, which is then flagged with a table to represent time / frequency history.

    SPCD is used to represent enforced / base excitations (enforcing a node/s) with Displacement, Velocity or Accelerations which are then acted upon by a table to represent time/ frequency history.

Categories