Rank: 402 based on 164 downloads (last 30 days) and 5 files submitted
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Izhak Bucher

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Files Posted by Izhak View all
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26 Aug 2010 Screenshot Rotor Dynamics toolbox (RotFE) Toolbox models rotating, elastic shafts with disks Author: Izhak Bucher rotordynamics, vibration, eigenvectors, campbell diagram, whirling of shafts 47 3
  • 5.0
5.0 | 2 ratings
29 Jul 2004 Screenshot Circle fit Fit a circle to a set of measured x,y points. Author: Izhak Bucher circle fit, approximations, approximation, least squares, interpolation, circle 102 17
  • 4.27273
4.3 | 11 ratings
28 Oct 2003 Screenshot 2-sided Zmod Shows a bi-directional spectrogram of a whirling shaft. Author: Izhak Bucher time frequency, wavelets, rotating machinery, whirl, vibration, zmod 2 0
  • 5.0
5.0 | 1 rating
05 Feb 2003 Screenshot Harmonics cursors Shows moveable cursors with a center frequency and evenly spaced harmonics. Author: Izhak Bucher specialized, plotting, harmonics, cursors, moveable, pattern 7 0
  • 4.0
4.0 | 1 rating
16 Jun 2000 rot_demo A collection of files that demonstrates building a rotor model as a MATLAB structure & plotting it. Author: Izhak Bucher simulation, rotor, model, rotor model, matlab structure, plotting 6 1
  • 4.5
4.5 | 2 ratings
Comments and Ratings by Izhak View all
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11 Dec 2010 Rotor Dynamics toolbox (RotFE) Toolbox models rotating, elastic shafts with disks Author: Izhak Bucher

Thank you Stefano, the bug (well typo) has been fixed.
 Your are certainly my ** user of the week **
    corrected version is being uploaded (12-12-2010)
09 Dec 2008 Data Acquisition Toolbox Adaptor for VXI Technology devices Data Acquisition Toolbox adaptor for VXI Technology devices Author: Data Acquisition Team

It does not work, both for 2006b and 2008a

Comments and Ratings on Izhak's Files View all
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Updated File Comment by Comments Rating
01 Oct 2011 Rotor Dynamics toolbox (RotFE) Toolbox models rotating, elastic shafts with disks Author: Izhak Bucher masoud
26 Jul 2011 Rotor Dynamics toolbox (RotFE) Toolbox models rotating, elastic shafts with disks Author: Izhak Bucher masoud

which these files can calculate critical speed of one rotor?
26 Jul 2011 rot_demo A collection of files that demonstrates building a rotor model as a MATLAB structure & plotting it. Author: Izhak Bucher masoud
11 Dec 2010 Rotor Dynamics toolbox (RotFE) Toolbox models rotating, elastic shafts with disks Author: Izhak Bucher Bucher, Izhak

Thank you Stefano, the bug (well typo) has been fixed.
 Your are certainly my ** user of the week **
    corrected version is being uploaded (12-12-2010)
10 Dec 2010 Rotor Dynamics toolbox (RotFE) Toolbox models rotating, elastic shafts with disks Author: Izhak Bucher Pieri, Stefano

Great job!!!! Very nice graphics!!! There is a BUG !!!

The 'inertia' formula in rotmass.m rotstiff.m and rotgyro.m is wrong.

I=pi*d^4/64*(1-f^2); where f=ri/r; leads to a wrong value of inertia in case of 'ri' not zero.
Thus, in case of big hollow shafts, this error leads to a wrong definition of the mass, stiffness and damping matrices, with wrong results.

The correct value of inertia is I = pi*d^4/64*(1-f^4);

Regards,
go on with this toolbox because it is the best...

Stefano.
Top Tags Applied by Izhak
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plotting, vibration, 3d, approximation, approximations
Files Tagged by Izhak View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
26 Aug 2010 Screenshot Rotor Dynamics toolbox (RotFE) Toolbox models rotating, elastic shafts with disks Author: Izhak Bucher rotordynamics, vibration, eigenvectors, campbell diagram, whirling of shafts 47 3
  • 5.0
5.0 | 2 ratings
11 Sep 2008 Empirical Mode Decomposition It decomposes a given signal into a set of intrinsic mode functions that are essentially AM/FM modul Author: Manuel Ortigueira companion software, emd, hht, signal processing 83 5
  • 5.0
5.0 | 2 ratings
29 Jul 2004 Screenshot Circle fit Fit a circle to a set of measured x,y points. Author: Izhak Bucher circle fit, approximations, approximation, least squares, interpolation, circle 102 17
  • 4.27273
4.3 | 11 ratings
28 Oct 2003 Screenshot 2-sided Zmod Shows a bi-directional spectrogram of a whirling shaft. Author: Izhak Bucher time frequency, wavelets, rotating machinery, whirl, vibration, zmod 2 0
  • 5.0
5.0 | 1 rating
05 Feb 2003 Screenshot Harmonics cursors Shows moveable cursors with a center frequency and evenly spaced harmonics. Author: Izhak Bucher specialized, plotting, harmonics, cursors, moveable, pattern 7 0
  • 4.0
4.0 | 1 rating

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