Rotor Dynamics Modeling Programs
Rotor Dynamics Modeling Programs
(OP)
Does anyone know of any good stand alone Rotor Dynamics modeling programs? I know that any FEA program could handle this. However, what I'm think of would allow me to place discrete components at the required locations then assign each component the appropriate specifications.





RE: Rotor Dynamics Modeling Programs
I have not used but hear Adams is a good dynamic modelling tool which works with any CAD software.
RE: Rotor Dynamics Modeling Programs
One neat thing about programs like ADAMS (and DADS for that matter) is that it it acausal in nature, unlike the block-based environments (Simulink etc) where you need to know how models interact when builind the model.
RE: Rotor Dynamics Modeling Programs
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Rotor Dynamics Modeling Programs
XLROTOR uses Excel.
Regards,
Bill
RE: Rotor Dynamics Modeling Programs
1.) Its Excel based format was appealing since I was familiar with it.
2.) We were working with Dr. John Vance (Texas A&M) at the time and he had a great deal of familiarity with the program.
We did speak with another engineer who had knowledge of the DyRoBeS program and thought it to be a good package, but no first-hand knowledge.
They are comparably priced (expensive! - XL was $6K), so I don't think you can go wrong with either of them. The salesman (owner?) from DyRoBeS claimed his product was better than XLRotor for large machines, but we build small engines so it wasn't a concern for me.
RE: Rotor Dynamics Modeling Programs
I do believe it's worth adding to the list the rotodynamics kernel MADYN. It's extremely powerful if compared both to XL-Rotor and DyRoBeS (allows for kinematic couplings of complex types, has very robust eigenvalues sorting in case of analyses in the complex domain, can calculate data for various types of bearings, can do statics, eigenvectors analyses, transients, harmonic response, spectral analysis, etc...
As far as I know, Dr Klement in Darmstadt is the original developer of the kernel, and you can purchase the "genuine" version of the program from him. Otherwise, there is Madyn2000 which should be based on the Madyn kernel 4 (of some sub-version, I don't remember which one), over which it adds a very user-friendly GUI.
Mathematically speaking, Madyn is in my opinion the most advanced kernel available for rotodynamics.
Regards
RE: Rotor Dynamics Modeling Programs
It's good for shafts and symetric systems. It cannot handle things such as car engines from last info I heard from the programmers. I think it's 6-7 K a year. ANSYS can also now handle RD, but I have not used it.
RE: Rotor Dynamics Modeling Programs