... user-defined performance criteria. 14 04 2010 27 04 2010 28 10 2010 28 10 2010 adaptive control machine bearings machine control magnetic bearings transient analysis turbomachinery vibration control Active magnetic bearings (AMBs) offer many advantages over...

... energy into the system. 24 03 2009 26 03 2009 03 03 2010 machine control magnetic bearings rotors During normal operation, the rotor in a rotor/magnetic bearing system levitates without contact with stator structures. However, during a fault condition, the rotor orbit...

... their limitations. JBs are limited by the instability mechanism known as oil whirl and oil whip ( 2 3 ), while AMBs have lower load capacity and tend to be larger for the same load. damping electric machines machine bearings machine control magnetic bearings mechanical stability 12 08 2008...

... flow density finite volume methods fracture machine bearings machine control rotors stratified flow turbomachinery vibration control viscosity 28 03 2008 06 05 2008 29 09 2009 Tangential and radial forces per unit length ( z = 16.7   mm ) versus...

... for a prescribed transient exponential decay at a rotational speed of 11 Hz 05 07 2006 14 07 2006 rotors machine control vibration control magnetic bearings wavelet transforms transient response control system synthesis signal reconstruction machine bearings Rotor...

..., the driving-factor. gas turbines transient analysis thermal stresses machine control angular velocity control Microturbines are now considered ready to conquer energy markets thanks to their flexibility and low maintenance, which should make them extremely cost effective in the near future...

... control system analysis control system synthesis machine control standards The rotordynamic performance of API 617 standards provides two primary requirements. First, the standard stipulates system damping near the expected operating speed range. This takes the form of a combination of damping...

... bearings rotors machine control dynamic response feedback sensitivity magnetic hysteresis bushings electric sensing devices Synchronous amplitudes and phases extracted from measured signals: Unbalance condition 0 gcm (엯), 200 gcm on run-up (◻) and rundown (∎), 250...

... measurement observability controllability transducers eddy currents centralised control machine control turbines Blade faults are a major problem in many types of bladed rotating machines such as for instance turbines and compressors. The increasing demands for lower weight, higher efficiency...

... control machine control control system synthesis 01 Oct 2001 28 Oct 2002 15 08 2003 Contributed by the Structures and Dynamics Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER . Manuscript...

... revision received by ASME Headquarters, Feb. 2000. Associate Editor: D. Wisler. 08 May 2000 01 Nov 1999 01 Feb 2000 27 12 2002 rotors lubrication machine bearings machine control control systems design engineering eigenvalues and eigenfunctions frequency response...