Contents 1 1 G.C. Khoury, D.C. Zimmerman, University of Houston 2 Spectral Analysis Methodology for Acoustical and Mechanical Measurements Relative to Hydraulic Turbine’s Generator 15 3 Transverse Vibrations of Tapered Materially Inhomogeneous Axially Loaded Shafts 25 A.J. Mazzei, Jr., Kettering University; R.A. Scott, University of Michigan 4 Converting a Driven Base Vibration Test to a Fixed Base Modal Analysis R.L. Mayes, Sandia National Laboratories; M.S. Allen, University of Wisconsin-Madison 5 Model Form Error of Alternate Modeling Strategies: Shell Type Wind Turbine Blades 53 6 Operational Modal Analysis of Operating Wind Turbines: Application to Measured Data 65 S. Chauhan, D. Tcherniak, Bruel and Kjaer Sound and Vibration Measurement A/S; J. Basurko, 7 Amplitude Dependent Crack Characterization of Growing Fatigue Cracks 83 A.U. Rehman, K. Worden, J.A. Rongong, University of Sheffield 8 Utilization of Localized Panel Resonant Behavior in Wind Turbine Blades 93 D.T. Griffith, Sandia National Laboratories 9 105 T.L. Paez, Thomas Paez Consulting 10 Reduction of Vibration Transmission in String Trimmers 129 P. Rajbhandary, J. Leifer, B.J. Weems, Trinity University 37 F. Lafleur, S. Bélanger, E. Coutu, A. Merkouf, Institut de Recherche d’Hydro-Québec, IREQ K.L. Van Buren, S. Atamturktur, Clemson University O. Salgado, I. Urresti, Ikerlan-IK4; C.E. Carcangiu, M. Rossetti, Alstom Wind Development of Pretest Planning Methodologies for Load Dependent Ritz Vectors Random Vibration – History and Overview
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