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Flender/Flender Gear Units/Bevel-helical gear Reduction Boxes B3

s produce quick results and require only limited computing power. They are usually much less accurate than MDOF processes, since therequirement for decoupled systems is met only in very rare cases. MDOF methodssimultaneously determine the resonance points, damping and vibration amplitudesfor several vibration modes. They can provide more precise description of adynamic behavior through their ability to detect decoupled and heavily dampedvibration modes [ LMS0 ]. By assigning these values to the individual measuring points in the geometry mesh, it is possible to display the vibration modes of the machine in animated form. Coupled with the compliance frequency responses, which allow quantication ofvibration amplitudes, modal analysis can then become an important tool in theanalysis of dynamic machine behavior. References [BREC0] Brecher, ., Weck, .: Werkzeugmaschinen Konstruktion und Berechnung, Band 2. Springer, Berlin ( [BREC0.1] Brecher, ., Weck, .: Werkzeugmaschinen Messtechnische Untersuchung und Beurteilung, Band 5. Springer, Berlin ( [BREC0.2] Brecher, ., Hannig, .: Entwicklung eines Systems zur Stabilita tsanalyse und Prozessauslegung von Schleifprozessen, Abschlussbericht FWF Forschungs- vorhaben Nr. AiF 1N ( [EWIN0] Ewins, ..: Modal Testing: Theory, Practice and Application. 2nd edn. Research Studies Press. ISBN 0 (References 3 [HANN0] Hannig, .: Analysis and Modelling of the Dynamic Behavior of Grinding Pro- cesses, Fortschritt-Berichte VDI Nr. 6, Bremen ( [HEYL0] Heylen, ., Lammens, ., Sas, .: Modal Analysis Theory and Testing, KU Leuven. ISBN 9-7-6- ( [KIRC8] Kirchknopf, .: Ermittlung modaler Parameter aus bertragungsfrequenzga ngen; Diss. TU Mu nchen ( [LMS0] Theory and Background, Firmenschrift, LMS International. Leuven, Belgien ( [NATK9] Natke, ..: Einfu hrung in Theorie und Praxis der Zeitreihen- und Modalanalyse. Vieweg, Wiesbaden ( [QUEI0] Queins, .: Simulation des dynamischen Verhaltens von Werkzeugmaschinen mit Hilfe exibler