STAAD - Finite Element Analysis of Window Hinge

[Hersh7]

I am using STAAD to run a finite element analysis of a window hinge using plates. An image is for reference (

http://i.ebayimg.com/images/i/360230405051-0-1/s-l1000.jpg)

Is there a way to connect two parallel plates together in different planes, restrain it, but allow rotation about the pin similar to how it would work in real life?

I am trying to figure out the best way to model this.

Thanks,

 

[ThomasH]

Hi

Doesn't that model mean that you will have a mechanism?

I that case I would be very careful with that model. STAAD may handle the mechanism by adding weak springs to eliminate the possible motion. And then, what would the model actually show you?

Thomas

 

[Hersh7]

I am trying to model the hinge in a locked position when the window is open and show the stresses induced by the dead load from the window.

 

[swearingen]

Staad is not the program you want to use for mechanisms. You can position the hinge in a few ways and model it while they are restrained to get stress distributions. If you get any unbalanced moment around the pin, it will have to be dealt with, though.


-5^2 = -25 ;-)

http://www.eng-tips.com/supportus.cfm

 

[Hersh7]

I want to model it in a restrained position so it wont be a mechanism. Do you know how to model the hinge point in STAAD? Would you model two plates overlapping and draw a beam between them to transfer the forces?

 

[ENGINEER92]

I wouldn't recommend STAAD to check that. Staad is not really designed toward checking bolted up connections. I would imagine Inventor, Solidworks, or ANSYS is more geared toward something like this. But connecting them with beam and changing the end releases of the beam is just about the only way I could think to somewhat model that.

 

[ThomasH]

Hersh7
How do you lock the hinge in reality?
The restrained position you mention, doesn't that mean that you will add a constraint that is not part of the real hinge?

I am not sure that this is a problem suitable for FEM-software.

Thomas