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Keywords: elastic constants
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Journal Articles
Article Type: Research Papers
J. Vib. Acoust. April 2012, 134(2): 021018.
Published Online: January 26, 2012
... in the stability boundary below 45 Hz, but above this frequency the stability boundary is little different. 05 07 2010 16 08 2011 26 01 2012 26 01 2012 elastic constants force feedback force measurement Lyapunov methods machine bearings magnetic bearings nonlinear acoustics...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. April 2012, 134(2): 021013.
Published Online: January 18, 2012
... device for cases where input excitation occurs over a wide range of frequencies. 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...
Journal Articles
Article Type: Technical Briefs
J. Vib. Acoust. April 2012, 134(2): 024504.
Published Online: January 18, 2012
... 01 2012 18 01 2012 acoustic filters blades damping discs (structures) 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...
Topics: Damping, Disks
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. April 2012, 134(2): 021001.
Published Online: January 13, 2012
... and set-point regulation in a precision control system is often limited by structural vibration. Active [( 1 )], passive [( 2 )], semi-active [( 3 4 )], and hybrid [( 5 )] vibration controllers have been developed to reduce vibration in many applications. damping elastic constants elastic...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. February 2012, 134(1): 011016.
Published Online: January 9, 2012
... 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...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. December 2011, 133(6): 061012.
Published Online: November 28, 2011
... influences the dynamic behavior of the machine. The rotor motions’ coupling due to combi-bearing changes the system’s natural frequencies and vibration modes. 27 03 2011 13 07 2011 14 07 2011 28 11 2011 28 11 2011 angular velocity elastic constants hydrodynamics machine...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. December 2011, 133(6): 061014.
Published Online: November 28, 2011
... elastic constants inclusions noise abatement springs (mechanical) structural acoustics vibrations heterogeneous blanket elastic material vibration absorber passive vibration control passive noise control mass interaction Heterogeneous (HG) blankets consist of a layer of elastic...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. December 2011, 133(6): 061011.
Published Online: November 28, 2011
... propagation damping elastic constants 08 03 2011 12 07 2011 28 11 2011 28 11 2011 True to form, the wavenumber-frequency response, shown in Fig. 3 , abides by the structure of the determinant (Fig. 1 ); that is, zeros become poles in w ( k ,ω), which then establish...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. October 2011, 133(5): 051004.
Published Online: July 26, 2011
... identified and then the severity of the damage can be estimated through harmonic probing. 04 02 2010 20 01 2011 26 07 2011 26 07 2011 beams (structures) cantilevers crack detection elastic constants frequency response nonlinear acoustics polynomials structural acoustics...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. June 2011, 133(3): 031010.
Published Online: March 29, 2011
... Meirovitch , L. , 2002 , Fundamentals of Vibrations , 1st ed. , McGraw-Hill , New York . 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...
Journal Articles
Article Type: Technical Briefs
J. Vib. Acoust. April 2011, 133(2): 024503.
Published Online: March 3, 2011
... 06 2010 03 03 2011 03 03 2011 bending elastic constants finite element analysis sensitivity shapes (structures) The noise, vibration, and harshness (NVH) performance of passenger vehicles strongly depends on the fluid-structure interaction between the air in the vehicle...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. April 2011, 133(2): 021005.
Published Online: March 1, 2011
... of the proposed method and it is also validated experimentally. 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...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. December 2010, 132(6): 061004.
Published Online: September 16, 2010
... on predictive methods using experimental modal analysis, frequency response function (FRF) based methods, finite/boundary element methods, sensitivity analysis, or analytical/numerical approaches applied to mechanical models. damping elastic constants finite element analysis vibrations 18 08...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. October 2010, 132(5): 051009.
Published Online: August 26, 2010
.... damping eigenvalues and eigenfunctions elastic constants frequency response machine bearings modal analysis reduced order systems shafts state-space methods structural acoustics thermal analysis vibrations Tilting-pad journal bearings (TPJBs) are widely used to provide lateral support...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. October 2010, 132(5): 051010.
Published Online: August 26, 2010
... resultant force at x = x 1 . 20 09 2009 22 03 2010 26 08 2010 26 08 2010 beams (structures) difference equations eigenvalues and eigenfunctions elastic constants friction thermoelasticity vibrations thermoelastic coupling axially moving beam frictional...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. June 2009, 131(3): 031012.
Published Online: April 23, 2009
... in the laboratory. Consider a symmetric vibrating system consisting of a spring mass series, as shown in Fig. 1 . The system has 2 N + 1 degrees of freedom and it is symmetric around the center mass ( m N + 1 ) . elastic constants Fourier series time-varying systems...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. June 2009, 131(3): 031009.
Published Online: April 22, 2009
... 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...
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. February 2009, 131(1): 011008.
Published Online: January 6, 2009
... 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...
Topics: Damping
Journal Articles
Article Type: Research Papers
J. Vib. Acoust. February 2008, 130(1): 011013.
Published Online: January 23, 2008
... on Jacquot’s work ( 5 ) and it takes into account neither the coupling between the DVAs nor the damping in the beam. Instead, the coupled optimization is a more complete scheme, which considers those items. beams (structures) damping elastic constants physics computing simulated annealing...
Journal Articles
Article Type: Technical Papers
J. Vib. Acoust. October 2007, 129(5): 577–589.
Published Online: May 4, 2007
... 04 05 2007 vibration control vibrations elastic constants simulated annealing magnetorheology resonance switching state-switching vibration absorbers vibration control optimization simulated annealing magnetorheological elastomers This research considers...