4 Replies Latest reply on Jan 26, 2016 4:12 AM by Julien Boissat

Simple support cylindrical face

Willem Van Opstal Jan 25, 2016 5:22 AM

Hi all, I have created a longboard with two trucks for the wheels. Wish to run a quick simulation on it as a simple supported beam (like in the pic); a fixed hinge on the left side, and a roller/slider on the right.

Fixed hinge is working fine, but I'm having some trouble with the other support. "On cylindrical faces" will constrain the cylindrical face in the horizontal direction too, and I don't want that! Also, I tried using reference geometry, but it seems it constrains my geometry in the rotation also (see simulation picture).

Is there any tips/tricks on how to set up this cylindrical face as a hinged roller? Thanks!

btw: the trucks are rigid

Capture (2).PNG 76.8 KB
2000px-Bending.svg.png 73.7 KB

Re: Simple support cylindrical face

Ameya Wadekar Jan 25, 2016 9:49 AM (in response to Willem Van Opstal)

Hi William,

From your figure it appears that you have contrained right side support in vertical and in horizontal direction normal to the Screen.
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- Re: Simple support cylindrical face
  
  Willem Van Opstal Jan 25, 2016 11:06 AM (in response to Ameya Wadekar)
  
  That's right, But since this happened onto a cylindrical face it won't rotate anymore. (I think because SW makes a lot of small constraints all over the face, which prevents a rotation)
  
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Re: Simple support cylindrical face

James Riddell Jan 25, 2016 1:58 PM (in response to Willem Van Opstal)

If the trucks are rigid why don't you just put a split line the width of the truck footprint where the pivot would be projected and use this edge constrained in the vertical only?
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Re: Simple support cylindrical face

Julien Boissat Jan 26, 2016 4:12 AM (in response to Willem Van Opstal)

Hi,

You can achieve that effect using a Remote Displacement (third option in the Remote Load PropertyManager). You may need to define a local coordinate system at the center of the pivot location - it's usually easier to define a remote displacement with a conveniently located local coordinate system.
For the definition of the Remote Displacement, you would just fix 2 rotations and 2 translations.

Julien
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