SPRINGS

Hi all,

Has anyone tried to make/set springs properties in Karamba?

I have a system that is using springs and I need to know how big/strong these springs has to be.

It will be great if there is any example. I have not find anything by far.

Thank you!

Replies to This Discussion

Permalink Reply by Robert Vier on December 17, 2011 at 2:24pm

Springs will probably be included in the next Karamba release, it's already in the testing phase..!

cheers

Permalink Reply by karamba on December 18, 2011 at 10:51am

A spring that is equivalent to a truss of length 'L', cross section area 'A' and Young's Modulus 'E' has the spring constant c=E*A/L.

best, Clemens

Permalink Reply by Seb on December 18, 2011 at 11:57am

Thanks Clemens! I will give that a try.

Is there any estimation on when the next release will be?

Permalink Reply by karamba on December 19, 2011 at 12:59am

January 2012.

Permalink Reply by Seb on December 19, 2011 at 8:24am

I was hoping for the new release to come out before the new year. But anyway, I cant wait for that new release and thank you for the plug-in!

Permalink Reply by karamba on January 18, 2012 at 12:37am

Karamba 0.9.083 now lets you define springs.

best, Clemens

Permalink Reply by Seb on January 20, 2012 at 10:47am

Thanks, I have just installed the new version. However, it gave me this error when I pull out the license component:

"Solution exception: the type initializer for 'fem.karambaPINVOKE' threw an exception."

Is this because I am using Grasshopper 8.065?

Seb

Permalink Reply by karamba on January 20, 2012 at 1:50pm

did you uninstall the old version of Karamba?

Uninstall Karamba (Settings/Software...). Search the Rhino directory for fthe files 'karamba.dll', 'karamba.gha' and remove them if they still exist somewhere. Then reinstall.

Karamba 0.9.083 works on GH 8.065, I've tested that.

Best, C.

Permalink Reply by Seb on January 21, 2012 at 9:46am

I tried that and still not working.

I tried plan a and plan b like the manual says. And here is plan c!

Permalink Reply by karamba on January 21, 2012 at 10:59am

Could you please give your exact configuration (OS, Rhino version, Service release)? Karamba 0.9.083 does not work with Rhino5.

Permalink Reply by Seb on January 21, 2012 at 2:11pm

no way!!!!! ok I think that was the problem. I am using Rhino 5. :(

Permalink Reply by karamba on January 23, 2012 at 1:14am

In theory karamba 0.9.083 should also function under Rhino5. However I haven't worked out the right directory to place 'karamba.dll' in. The problem is, that the C# user-interface-program-part 'karamba.gha' does not find 'karamba.dll' where all the calculations are done (although they are in the same directory and are able to work together under Rhino 4).

I hope to solve that issue in the next release.

Best regards, Clemens