Advanced Fixture

[Radzha]

Hi all. Can someone please tell me how to add a fixture that has Ux Uy an Uy fixed but Mx My and Mz released? Something like this.

I need to add this on the edge of metal sheet. I have added the "fixed geometry" fixture on the edge, but i am not sure if it gives me the same result.

 

Thanks in advance

[shift1313]

Are you talking about a fixture during a simulation study? So you need your plate(bottom of the triangle) fixed in all 3 directions but you need rotation about the circle(sphere im assuming)?

[Radzha]

that picture was just a symbol how we marks such fixture in university. here is a better scheme

And yes, i am talking about simulation study. the edge AD is on the Roller fixture so it can move in X and Z directions but not in Y. BC edge must NOT move in any direction, but it should rotate easily. there is a hinge fixture in Solidworks, but it only can be applied to cylindrical surface.

[shift1313]

If i remember right you should be able to apply the hinge by selecting the edge instead of a face. Also if you Fix an edge it will have the same results as if the end face was free to rotate. Where will the moment be applied, on the same edge thats fixed on BC. Its a little deceptive because we need to be talking about it in 3d because you can select edges and faces.

 

I dont have SW at home but tomorrow morning I will open up a simulation and give it a shot.

[Radzha]

Thanks for quick relies. Hinge can only be applied to cylindrical face (checked it twice). It is so hard to work when no one that i know is familiar with SW I have so much work with it that i even schedule some studies for night while i am asleep

 

Thanks again. Will be waiting for more info if anyone can provide. I appreciate.

[shift1313]

no problem. The SW task scheduler is pretty cool. Ive had it made drawing files for me while away:) Just to help out, are you actually going to be setting up a plate or will it be something with more geometry?

[Radzha]

It is a trapezoidal sheet (i as have posted in earlier topic). however the fixture will be applied only to the flat bottom surface edge (the one that touches the beam) if you imagine how it looks so basically its like a plate

[shift1313]

Radzha, it seems like if you create a Fixed Geometry fixture by selecting the bottom edge of your sheet as opposed to a face it will allow it to pivot. Here is a screen shot showing this. The orangle line is the original position of the end. Give it a shot and let me know if it works out for you.

[Radzha]

Thanks Shift. I really helped. Also I have found another way to do it. I have sketched a tiny rectangles (using split) on the face of the end of sheet and applied fixed Hinge to it. haven't noticed any difference, only that Fixed Geometry fixture is way easier to apply Anyway, thanks for assistance =]

[shift1313]

no problem, glad it worked out for you.

 

Another thing you could do for your hinge is apply a fillet to the bottom edge but I think that would be less accurate.

 

Good luck with those thousands of simulations

[Radzha]

Fillet? hmm that would work, but it would force me to mesh with even smaller elements and that leads to much longer calculations. (my sheet is only 0.7mm to 1.5mm thickness)