🎉Community Raffle - Win $25

An exclusive raffle opportunity for active members like you! Complete your profile, answer questions and get your first accepted badge to enter the raffle.
Join and Win

FRF Base Excitation in Optistruct

User: "Arul"
Arul
Altair Community Member
Updated by Arul

 

Hi,

 

Need clarification regarding FRF Analysis in Optistruct. What is the difference by applying excitation in two different cases? For example we need to apply 1g excitation. How to apply in below cases?

 

Case 1 - Using RBE2/RBE3

Case 2 - Separate

 

Regards,

Arul

<?xml version="1.0" encoding="UTF-8"?>image.thumb.png.d0beb415d0f577a2a5c3ce0488d6612a.png

Find more posts tagged with

English
OptiStruct
Sort by:
1 - 3 of 31
    User: "Rahul Rajan_21763"
    Rahul Rajan_21763
    New Altair Community Member
    Updated by Rahul Rajan_21763

    I guess case 1 is the right method (spcd is applied at the independent node) instead of exciting at all points.

    User: "Arul"
    Arul
    Altair Community Member
    OP
    Updated by Arul

    Hi Rahul,

     

    Thanks for reply. But it that case -1,  the excitation will get applied equally (means 1g divided by 3) ?

     

    Regards,

    Arul

    User: "Rahul Rajan_21763"
    Rahul Rajan_21763
    New Altair Community Member
    Updated by Rahul Rajan_21763

    Yes.If we use RBE2 element.

Quick Links