Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Automatically find null displacement point in Ansys

Automatically find null displacement point in Ansys

Automatically find null displacement point in Ansys

Hello everyone!

I'm currently working on a vibration analysis of a beam with additional weights attatched to it's ends. My goal is find the natural frequencies of the beam and the null displacement points. Since I need to perform this analysis for different beam geometries and lengths, I have parametirized my model and created a bunch of design points to speed up the process. This approach is excellent for finding the natural frequencies of the system, but not so much for finding the nodes seeing that I have to manually check the "x" coordinate of the nodes. I was wondering if anybody has ever worked with a case similar to mine and know's a way of automatically retrieving the coordinate as a parameter(or any tool that might help).

I'm aware that Mechanical APDL might be able to solve this issue, but for someone with little experience with it such as myself, I find it hard to even start looking for how to accomplish this task(since I don't know how the language works).

Any help would be greatly appreciated,

RE: Automatically find null displacement point in Ansys

Thank you for your answer, Jason.

Unfortunately, by using this method, all I get is a "File not found" message in the command snippet. Would you know how to fix it?

Best regards,


RE: Automatically find null displacement point in Ansys

Hi Leonardo,

I'm sorry the post wasn't clear. It's hard to troubleshoot from afar but here is a few things that comes to mind on things to check:
0. In the solution output file, did it indicate which file was not found?
1. Right-Mouse-Button on "Solution" to "Clear Generated Data" before hitting solve again. This hopefully recreates any missing files.
2. Do you have the Command Snippet at the "Solution" section, not "Modal" section? It would complain of no file.db.
3. In "Analysis Data Management", did you have "Save MAPDL db" as "Yes"? The file.db would be missing otherwise.

Kind regards,

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Research Report: State of IoT Adoption in Product Development 2019
This research report, based on a survey of 234 product development professionals, examines the current state of Internet of Things (IoT) adoption by product design teams, its perceived importance, and what features and capabilities teams consider important when making decision about adding IoT functionality to their products. Download Now
Research Report: Augmented Reality for Maintenance, Repair and Overhaul (MRO)
The term Industry 4.0 denotes a cluster of technologies that’s poised to fundamentally reshape manufacturing and bring about a new industrial revolution. These include 3D printing (AM), the Industrial Internet of Things (IIoT), artificial intelligence (AI) and mixed reality technologies, more commonly known as virtual reality (VR) and augmented reality (AR). Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close