... control (case 2). Results with controller gain optimized for two different frequencies are shown. Flexible rotor-AMB test rig: ( a ) photograph and ( b ) CAD model 05 07 2010 16 08 2011 26 01 2012 26 01 2012 elastic constants force feedback force measurement...

...) plates Bottom view of the upper part 07 07 2009 17 07 2011 18 01 2012 18 01 2012 acoustic devices damping elastic constants magnetic circuits magnetorheology vibration isolation vibrations vibration isolation magnetorheological fluid variable...

...) elastic constants vibrations Several methods are currently available for damping identification [( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 )]. Notably, the steady-state and transient decay (such as Schroeder’s integrated impulse [( 15 ), 16 ]) methods as well as the power injection method...

... and the closed-valve case (dash-dotted) 20 09 2009 26 06 2010 13 01 2012 13 01 2012 damping elastic constants elastic moduli elasticity fibre reinforced composites Lyapunov methods orifices (mechanical) structural acoustics transient response vibration control...

... energy, can be used to create effective passive mitigation designs of structures under impulsive loads. damping elastic constants nonlinear acoustics nonlinear systems shock absorbers structural acoustics nonlinear stiffening nonlinear damping enhancement nonlinear energy sink...

... in the rotor dynamic modeling. combi-bearing vertical rotor natural frequency natural mode coupled motions angular velocity elastic constants hydrodynamics machine bearings rotors shafts structural acoustics turbogenerators vibrations 2011 American Society of Mechanical...

... and Wave Based Models for Mass Inclusions in Poro-Elastic Layers ,” Proc. ICSV 14 , Cairns , Australia . 27 04 2010 21 07 2011 25 07 2011 28 11 2011 28 11 2011 acoustic wave absorption acoustic wave transmission damping elastic constants inclusions noise...

... that the systems’ dispersion curves are primarily governed by the material properties of the string and by the location of the supports. 08 03 2011 12 07 2011 28 11 2011 28 11 2011 acoustic dispersion acoustic wave propagation damping elastic constants The intent here...

... , “ Mulltiple Cracks Effects and Identification ,” Mech. Syst. Signal Process. 0888-3270 , 22 , pp. 845 – 878 . 10.1016/j.ymssp.2007.11.008 04 02 2010 20 01 2011 26 07 2011 26 07 2011 beams (structures) cantilevers crack detection elastic constants frequency response...

... of the eigenvalue problem are discussed in the Appendix. 03 03 2010 24 08 2010 29 03 2011 29 03 2011 Brillouin zones elastic constants elastic waves periodic structures Structures with periodic features are found widely in nature and engineered systems. From an engineering...

...-3717 , 132 ( 2 ), p. 021007 . 10.1115/1.4000769 19 08 2009 01 06 2010 03 03 2011 03 03 2011 bending elastic constants finite element analysis sensitivity shapes (structures) In a recent work, the embedded sensitivity method was used for finding the best...

... are considered as the small values of O ( ε ) . 21 08 2009 16 04 2010 01 03 2011 01 03 2011 abrasion elastic constants impact (mechanical) lubrication machine bearings mechanical contact mechanical guides nonlinear estimation rotors stators vibration control...

... and Nonlinear Damage Using Frequency Domain ARX Models ,” Struct. Health Monit. 1475-9217 , 1 ( 2 ), pp. 185 – 201 . 10.1177/1475921702001002005 18 08 2009 28 04 2010 16 09 2010 16 09 2010 damping elastic constants finite element analysis vibrations In the same way...

... beams (structures) difference equations eigenvalues and eigenfunctions elastic constants friction thermoelasticity vibrations thermoelastic coupling axially moving beam frictional contact vibration characteristics differential quadrature method The vibration characteristics...

... – 1.08 X , where X is the rotor running speed for bearing designs 1 and 2. 27 06 2009 28 01 2010 26 08 2010 26 08 2010 damping eigenvalues and eigenfunctions elastic constants frequency response machine bearings modal analysis reduced order systems shafts...

... − μ n M 0 ) a n = 0 ,     n = 1 , … , N elastic constants Fourier series time-varying systems vibrations Mechanical structures consume the smallest amount of energy for a given displacement when they are operated at resonance ( 1 2 ). Indeed, many...

... parameters on the steady-state response. A comparison is made with the available published work. 13 06 2008 24 12 2008 22 04 2009 elastic constants magnetic bearings nonlinear differential equations oscillations rotors Runge-Kutta methods time-varying systems rotor-active...

... variation of damping as a function of frequency, can be accommodated within the framework of standard finite element modeling and vibration analysis of linear systems. 27 07 2006 28 02 2007 06 01 2009 beams (structures) bending cantilevers continuum mechanics damping elastic...

... that it is convenient to locate its minor elastic constant near the antinode that corresponds to the first mode of the beam, and the major one near an antinode of the second mode. This is a new result in analogy to the criteria developed for multiple 1DOF DVAs. The effect of the location on the effectiveness...

... in the experiments. 08 03 2006 04 05 2007 vibration control vibrations elastic constants simulated annealing magnetorheology resonance switching state-switching vibration absorbers vibration control optimization simulated annealing magnetorheological elastomers...