Damping problem

Numerical methods and mathematical models of Elmer
Sayan
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Re: Damping problem

Post by Sayan »

Here are the files..
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mesh.boundary
(10.22 KiB) Downloaded 150 times
Sayan
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Re: Damping problem

Post by Sayan »

Here are other files..
Attachments
mesh.nodes
(4.59 KiB) Downloaded 154 times
mesh.header
(34 Bytes) Downloaded 163 times
mesh.elements
(9.86 KiB) Downloaded 151 times
kevinarden
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Re: Damping problem

Post by kevinarden »

I use your mesh and your sif, and everything looks OK
Attachments
results.png
(104.11 KiB) Not downloaded yet
Sayan
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Re: Damping problem

Post by Sayan »

Can you post both results in data format?
kevinarden
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Re: Damping problem

Post by kevinarden »

und.csv
(18.72 KiB) Downloaded 164 times
newdamped.csv
(18.71 KiB) Downloaded 162 times
Sayan
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Re: Damping problem

Post by Sayan »

Thank you so much....
Are these deflection is of near middle point i.e at 0.29935m from fixed end?
kevinarden
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Re: Damping problem

Post by kevinarden »

The are at the free end
Sayan
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Re: Damping problem

Post by Sayan »

Your result is completely ok..But still my damped one is not taking in elasticsolver..Is there any bug in elasticsolver for windows10?I don't know..just asking .
raback
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Re: Damping problem

Post by raback »

Hi

Bugs are usually not this sophisticated. Often when this happens it turns out the user has been accidentally running the wrong case, or something similar. Increase the verbosity to say ~7. And check the output that you're really solving for the nonlinear elasticity and having several iterations.

There was some change in damping maybe several months ago. Verify that you're really running a recent version. You can see it in start of the output as in
MAIN: ElmerSolver finite element software, Welcome!
MAIN: This program is free software licensed under (L)GPL
MAIN: Copyright 1st April 1995 - , CSC - IT Center for Science Ltd.
MAIN: Webpage http://www.csc.fi/elmer, Email elmeradm@csc.fi
MAIN: Version: 9.0 (Rev: c699e526, Compiled: 2021-03-29)
...
It sometimes happens that there is an old version being used even if new one is also installed.

-Peter
kevinarden
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Re: Damping problem

Post by kevinarden »

See the last post in this topic, user was having a strange result, uninstalled everything, then followed the latest window installation instructions.

viewtopic.php?f=2&t=7396

You might also start with fresh problem directories to help ensure older files are not being used. I used to have a problem with ElmerGUI unexpectedly over writing case.sif files. Not sure if it happens anymore but I allows visually read the sif file before running.
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