Learning Forum

[lkl]

Hi,

I am new to ansys and I am modelling a rail with springs below with two fixed ends. However, I getting the following warning message, is this a concern or how to eliminate it and how to check the created beams on solution information?

[Ashish Khemka]

Solver pivot error generally indicates rigid body motion. Please check if the model is constrained properly.

Regards Ashish Khemka

[lkl]

to check if the model is constrained properly as in the fixed support and the spring? How come if the meshing size is smaller, I do not encounter this error?

As for the warning msg of one or remote boundary condition has been scoped to a solid vertex, is that a concern or how to I remove it?

[lkl]

Hi Appreciate all assistance on my queries. Thank you.

[Ashish Khemka]

Can you share the images of how springs are connected to the rails? The connection may be changing with mesh.

Regards Ashish Khemka

[lkl]

Hi @akhemka
I have done a face spilt using as a vertex as connection from a body to solid connection and below is my image of how the spring is connected with mesh image.
If I used a lower body sizing, it will only reflect the warning as shown below. Is this a concern?

If I increase the body size, it will show four warning and error messages.

Appreciate your advice.

[lkl]

Hi @akhemka Can assist?
Thank you.

[Ashish Khemka]

The warning message appears when you scope the remote point to a vertex. Also, please see if the following discussion helps.

Attaching a point mass on a beam in Modal ÔÇö Ansys Learning Forum

Regards Ashish Khemka