Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

- Navigation
- Simcenter
- Forums
- Blogs
- Knowledge Bases

- Siemens PLM Community
- Simcenter
- 3D Simulation - Femap Forum
- Nonlinear results as initial conditions for natura...

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

05-25-2016 01:36 AM

I have a set of bushings which have highly nonlinear stiffness (but elastically so). I would like to use nonlinear analysis with a nonlinear force vs displacement curve to get the correct stiffness of these fasteners for use in a natural frequency analysis.

Aside from running a nonlinear solution and manually checking the displacement of each fastener end-point, and then entering the correct stiffness separately for each fastener, is it possible to use nonlinear results to define the stiffness matrix used in a natural frequency analysis in FEMAP?

Solved! Go to Solution.

2 REPLIES

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

05-25-2016 02:30 AM

Hello Kava,

I guess you need to run a pre stresseed modal analysis. There are some issues in internet. What I have it is not in english

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Permalink
- Email to a Friend
- Report Inappropriate Content

05-25-2016 10:10 PM

You can probably do it as a restart (if you have ticked the analysis option to save data for re-start), but that is more complicated than the method above.

Follow Siemens PLM Software

© 2017 Siemens Product Lifecycle Management Software Inc