Follower force in optistruct

Hi @Prakash Pagadala

Have you gone through the model? Kindly let me know.

Thank you

Hi Gopal,

I got the file and I will look into this.

Ok thank you

Hi Gopal,

Looks like it is a large strain problem,

Can you try with NLGEOM instead of NLSTAT?

or You can use NLSTAT, LGDISP= 1 with FLLWER card. I am sharing an example model

Unable to find an attachment - read this blog

Hi @Prakash Pagadala

I have send you a file for NLGEOM contact issue , please check.

Thank you

Hi Gopal,

I am unable to open the FTP link for some reasons. Can you resend the file please?

Hi,

I have send the files for NLGEOM contact problem.

Thank you.

Hi Gopal,

Please try with these settings shown in image:

One more thing is that I don't think follower load will work for enforced displacements as you are trying to enforce displacement on nodes in a particular direction and at the same time follow the change in geom.

Please try that and let us know your findings. 

<?xml version="1.0" encoding="UTF-8"?>

Hi,

I have used the above parameters. I am using version 13 and thus do not have track parameter. There is problem in  contact as earlier. The run starts well with first detection of contact but as time progresses the contact is lost.

Hi Gopal,

What do you mean by contact is lost? Does the plate component is penetrating into another component?

Can you share an image or h3d file?

Hi,

Please find the attached file.

Thank you

<?xml version="1.0" encoding="UTF-8"?>

Gopal,

This is what I have with above settings:

<?xml version="1.0" encoding="UTF-8"?>

Hi,

Behaviour in your animation is coming correctly it seems. Is this version issue?

Gopal,

Which version are you using?

Hi,

HW 13

Gopal,

I will check in 13.0 as well and will let you about this. But I think this has something to do with version. 

Ok. Kindly check at your end in 13.

Thank you

Hi,

Have you run the model in 13 version?

Thank you

Hi Gopal,

yeah, it is still running and it is been an hour. I will update you soon. 

BTW, I am using HW 13.0 without any patch updates.

Hi Gopal,

The result is same as yours with 13.0 without updates. So the issue is with the version. Can you update the 13.0 to the latest available patch and check if that works?