3 Replies Latest reply on Dec 30, 2014 3:56 PM by Seckin Uslu

    Simulating a assembly, but runs into problems.

    Odd Ramone

      Earlier I have made static simulations on single parts with great luck. But I now have a assembly

      that I want to do some static simulation on. But problems have appeared. Here is the assembly:

       

      sim_001.jpg

       

      The assembly consist of 20 parts. They all have the same material properties (Plain Carbon Steel).

      Here is the data I used:

       

      Connections

      I used boned "global contact". And for the connections on the picture under I used "bonded contact sets".

      This is where I will weld the parts together when I manufacture the product.

      sim_004.jpg

      sim_005.jpg

       

      For the massiv rectangular steel box on the end of the pipe I used automatically find connection set,

      and I used "bonded contact set" for that one.

       

      And for fixtures I used "fixed geometry" on some holes on the right on the assembly, you see the green

      arrows. But not so easy to see the holes. The external loads was only gravity (9,82). Meshing went fine

      when I defined the steel pipe ass shell (4mm).

       

      But here is the result when I run the simulation:

      sim_002.jpg

      The massive steel box to the left slides away, and gets a very funny geometry. And the rest of the assembly

      does not show ANY displacement, and that`s not correct at all! Anyone know what I`m doing wrong here?

      Maybe I could upload the CAD files so someone could try to do the simulation?

      I would certainly have been very grateful!!:)

        • Re: Simulating a assembly, but runs into problems.
          Seckin Uslu

          if you can upload cad data , ı can say certain things.

           

          I guess the pipe's mesh incompatible with stell box.

           

          You should define contact set bonded with steel box and pipe.

           

          Even if you do it , Solidworks sometimes could not create contact set.

           

          İf its is possible define steel box as shell. Then use split line for proper mesh.

           

          you can see how mesh should be on the picture.

          28.12.png