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How perform a Modal transient analysis?

User: "Altair Forum User"
Altair Employee
Updated by Altair Forum User

Hi everyBody

I have a steel frame with a steel plate in the centre, with applied a pressure load; at the exteems of frame i have 4

 

constrains locking DOF1 DOF2 and DOF3;

 

I have used beam element to create the frame and shell elements to create the plate;

 

I have applied a certain pressure on the shell elements, but i need a impulsive load, how can i create it?

 

How can i perform a transient modal analysis? witch load collectors i need to create?

 

Here there are three images to help you to understand.

 

After that i have to output the values of bending moments, shear and normal stress near a intersection of

 

3 beams element in the frame; then model the intersection with a 3D and apply the loads i have found from

 

the transient  modal Analysis.

 

Where can i reed these kind of values concerning a node of the frame?

 

thank for the support

 

Damir

 

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<?xml version="1.0" encoding="UTF-8"?>post-31773-0-81566200-1425570212_thumb.p

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