Community Tip - When posting, your subject should be specific and summarize your question. Here are some additional tips on asking a great question. X
Hi everyone, I think for you it is a piece of cake but I have to ask you something. I would like to calculate matrix K-Lambda M and determine egenvectors W. I tried but my checks are not satisfied. The values are diagonal but they have to be around zero exept 11,22,33. I need the help what kind of functions should I use?
Hi,
Enclosed is a Mathcad 15 file I have found useful for vibrating beams.
Ask nicely and it probably can be converted to Prime with a bit of work.
The function you are looking for is Gamma=genvals(Kg,Mg) where Kg is the global stiffness matrix and Mg is the global mass matrix. See the file where this is done.
The file assembles the Kg and Mg
Cheers
Terry
Hi
Here is the Prime 6.0 file conversion.
Cheers
Terry
Very nicely done! (Will run in Express!)
Attached is a document I developed a while ago, a spring/mass problem--same math. Maybe it'll help.
Thanks for your Help. Cheers