Titlebook: Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics & Laser Vibrometry, Volume 8; Proceedings of the 3 Dario Di Maio,Paolo Castellini

LASH

Mitigation of Structural-Acoustic Mode Coupling in a Modal Test of a Hollow Structure,ions to match the in-vacuo structural model by de-coupling the structural and acoustic modes. Here, acoustic absorption material was used to decouple the modes and attempt to measure the in-vacuo structural response. It was found that the split peak could be eliminated by applying sufficient acousti

languor

Applications of 3D Scanning Laser Doppler Vibrometry to an Article with Internal Features,tics of the full system were able to be inferred from purely external measurements. These characteristics were essential in updating the mechanical behavior and material properties of the corresponding finite element model. The response measurements required for system identification were only pract

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The Measurement of a Nonlinear Resonant Decay Using Continuous-Scan Laser Doppler Vibrometry,this investigation, the capabilities of CSLDV will be utilized to measure the nonlinear resonant decay of a clamped-clamped flat beam. The response measured using CSLDV will then be compared with the decay response measured with 3D-DIC to validate the CSLDV method and to understand the advantages an

ethnology

Vibro-Acoustic Modulation of a Spinning Apparatus for Nondestructive Evaluation, caused by damage. In this case, the pumping signal is provided by the rotation of the sample and the resulting gravitational and inertial forces. A piezoelectric actuator provides the probing signal and an acoustic emission sensor detects variations in the signal response. This work explores combin

entitle

Nonlinear 3D Dynamic Model of an Automotive Dual Mass Flywheel,nding spring motion are accounted for. Moreover, friction occurring in seals and friction resulting from the spring radial forces are included. The developed dual mass flywheel model is included into a multi-body model of the vehicle powertrain to assess the effect of its main parameters on the driv

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