… rotors for both bending and torsional vibrations. Special attentions is given to transient analysis
of the rotors … Systems with fluid film bearings, cracked rotors and two spool rotors are also …

NASA rotor 37 was used as a ‘blind’ test case for turbomachinery CFD by the Turbomachinery
Committee of the IGTI. The rotor is a transonic compressor with a tip speed of 454 m/s (…

This article reviews the literature concerning the balancing of rotors including the origins of
various balancing techniques including ones that use influence coefficient, modal, unified, no …

… Semiopen or open rotor slots are normally needed, since the rotor slot bridges in closed
rotor slot machines offer a low-reluctance path for the high-frequency flux, making the rotor slots …

… used in rotor dynamic analysis. The one disk-flexible rotor model, called Jeffcott or de Laval
rotor, … For realistic rotor forms, a discrete finite element model is presented, applicable to very …

The helicopter rotor wake is among the most complex fluid dynamic structures being three
dimensional and in many cases unsteady. The wake begins at the blade(s) where the flow …

The purpose of this book is to give a basic understanding of rotor dynamics phenomena with
the help of simple rotor models and subsequently, the modern analysis methods for real life …

Attempts to fabricate mechanical devices on the molecular level 1 , 2 have yielded analogues
of rotors 3 , gears 4 , switches 5 , shuttles 6 , 7 , turnstiles 8 and ratchets 9 . Molecular …

We report creation by photolithography techniques of the phase rotor filter, an optical
element whose complex transmittance depends in a linear fashion on the azimuth angle. …

… rotor-stator axial gaps of 15 and 65 percent of axial chord. The upstream potential flow influence
of the rotor … and wake influences of the stator on the rotor. It was also seen that at the 15 …