Grooves are provided in two plate & between that groove balls are inserted so that they produce swivel type action.Can someone tell me how to give this type of connection in simulation ?
If the two plates are either different parts, or the identical parts, you could place a sketch that would represent your ball, it would only have a circle, in it that is constrained to the plate where your ball would be. If your parts are identical you would only need the one sketch, if they are different you would have to add this in both parts. Then in your assembly, show the sketch(s) and then use a coincident mate on the center point of the circle in that sketch. Once done, hide the sketches. Unfortunately you can not really limit how far it swivels unless you use the motion analysis I believe, with the stop on collision option selected. You could maybe limit it with a limit angle mate in one direction, using the front/top/right planes or other construction planes...but it may not give you the desired results.
above assembly is analysised for suppose 500 kg load.What type of connector or contact set to be used for defining swivel motion.
How you handle this depends on how accurately you need to simulate the joint and what type of simulation you're doing. If you're doing FEA and you only need a general representation of the stiffness at the joint and an approximation of the reaction forces, then you could represent this with a beam element that has the appropriate DOFs released. For example, if you have a plate with a rod connected to it (where the rod is going to be meshed with a beam element), you can release the DOF at one of the joints by doing the following:
1. Right click on the beam and select Edit Definition:
2. Select the appropriate end and set it to Manual and then release the DOFs needed. Make sure that you keep in mind the directions associated with a beam element.
You should also keep in mind (as Chris said) that this method will not provide limits for how far the joint can slide or rotate (that is nonlinear). If you need to do that, or need accurate stress results in the joint itself, then you'll need to model the 3D geometry of the joint and apply the appropriate contact definitions.
Please give ans in respect to this asssembly.
OK, so the swivel like on a caster. How you simulate this depends on what you want to approximate from a results standpoint. What exactly are you wanting to do simulation wise? Mimic the kinematic nature of the joint? Calculate reaction loads? Calculate stresses?
just want to check load capacity of bracket.
how will you define the load capacity
how will the ball interaction effect it
what will fail first? the bracket? the balls or the grooves?
seems to me like it should be possible to simplfy the effect of the balls and grooves and just analyze the bracket
can you show an example of the geometry/
what do you want to learn in the simulation?
above image show what exactly i want to do. Between two plate ball are placed & with help of that swivel motion is produce between them.
see shaun's request below, what do you want to learn?
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