...C. Lai; X. Sun; C. Dasch; G. Harmon; M. Jones Resonance inspection uses the natural acoustic resonances of a part to identify anomalous parts. Modern instrumentation can measure the many resonant frequencies rapidly and accurately. Sophisticated sorting algorithms trained on sets of good...

... perforated intruding inlet simulated annealing numerical decoupling technique acoustic noise acoustic resonance aeroacoustics pipe flow silencers simulated annealing 01 11 2009 16 03 2010 26 08 2010 26 08 2010 2010 American Society of Mechanical Engineers ...

... 18 08 2010 acoustic resonance continuum mechanics discs (structures) Galerkin method plates (structures) structural acoustics vibrations circular plates with cut-outs R -function method conjugate modes multiple scale method internal resonances Plates are bearing...

... acoustic field acoustic intensity acoustic resonance acoustic resonators acoustic wave transmission aeroacoustics blades fans noise abatement rotors stators To further validate the resonator model as a control source under flow-excitation conditions, the next step was to characterize...

... periodic motion at Point C are shown in Fig. 14c . 12 05 2006 12 08 2006 01 07 2008 acoustic resonance ball bearings elasticity nonlinear systems rotors shafts springs (mechanical) vibrations Some rotating machines, such as generators, have a rotor...

... - Congrès Français d’Acoustique, Tours, France. 28 07 2006 06 02 2007 bone nondestructive testing crack detection bioacoustics vibrations acoustic resonance biomechanics patient diagnosis piezoelectric transducers finite element analysis bone characterization nonlinear...

... cases studied. However, it was found that strong coupling between the thin-walled structure and the acoustic cavity exists in the vicinity of any uncoupled acoustic resonance. Thus, the coupled properties of the systems were found to be dominated by the uncoupled acoustic resonances. As the focus...

... of aerospace thin structures—panels and stiffeners. 25 11 2005 25 04 2006 vibrations structural acoustics damping acoustic resonance vibrations eigenmodes intrinsic damping nonlinear damping modal truncation The dynamic identification of thin structures...

..., Zurich. 12 11 2004 27 02 2006 level measurement vibrations acoustic resonance Many automated devices for fluid handling require a liquid level detection (LLD). For example, pipetting modules used for medical analysis require LLD for correct and precise handling of reagents...

... acoustic resonance finite element analysis modal analysis rotors Rotating machines appear everywhere in our daily life. They could range from high-tech applications, such as jet engines and computer hard disk drives (HDD), to ordinary household appliances, such as washing machines...

... reduced models are compared with linear-based reduced models in the presence and absence of nonlinear resonances. reduced order systems vibrations structural acoustics Lyapunov methods damping nonlinear systems pendulums acoustic resonance Many structural systems with rotating components...

... field to display the beat phenomenon and primary resonance are also presented and discussed. 12 08 2003 07 01 2005 09 01 2005 18 05 2005 vibrations magnetic fields transient analysis temperature thermal conductivity Runge-Kutta methods damping acoustic resonance...

... provides a better understanding of stick and nonstick motions of the linear oscillator with dry friction. The methodology presented in this paper is applicable to oscillators with nonlinear friction forces. 22 01 2005 28 04 2005 vibrations friction acoustic resonance structural...

... on multiple high-frequency excitation. vibration isolation nonlinear dynamical systems vibrations nonlinear control systems linear systems control system synthesis dynamic response acoustic resonance three-term control feedback linearisation techniques torque control elastic constants...

... engineering acoustic resonance In the design of high-speed rotating disk cam-follower systems, an important performance consideration is follower positional error at the output end due to backlash and follower deformation 1 2 3 4 5 6 . When the cam action includes dwell phases, any motion...

... as determined by the dynamics of this manufacturing process. Dynamic tension may also lead to parametric excitation in other manufacturing processes involving paper, film, plastics, threads, fibers, etc. vibrations coating techniques sheet metal processing acoustic resonance 24 May 2003...

... switch ( ρ = − 1 ∕ 2 , for r 1 A > 0 ), nontrivial responses above the activation frequency can be avoided. 16 07 2004 10 01 2005 oscillators band-pass filters micromechanical devices oscillations dynamic response vibrations acoustic resonance...

... al. 4 studied the response of a spinning floppy disk under space-fixed harmonic excitation. Chen and Hsu 5 6 considered the transient response as well as steady state deflections of a spinning disk under space-fixed step-forces and couples. surface acoustic waves vibrations acoustic...

... AND ACOUSTICS . Manuscript received July 2002; Revised November 2003. Associate Editor: Keltie. 01 July 2002 01 November 2003 04 05 2004 pipe flow acoustic resonance cavitation aeroacoustics However, the resonance problem between an impinging shear layer and an acoustic mode...

... AND ACOUSTICS . Manuscript received August 2000; Revised August 2002. Associate Editor: J. H. Ginsberg. 01 August 2000 01 August 2002 06 01 2003 structural acoustics acoustic resonance eigenvalues and eigenfunctions The question of the degree of fidelity required for accurate...