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@PHDTHESIS{Chavan:959651,
      author       = {Chavan, Prateek Satish},
      othercontributors = {Brecher, Christian and Schröder, Kai-Uwe},
      title        = {{S}ubstructuring methods for efficient prediction of
                      spindle-holder-tool assembly dynamics; 1. {A}uflage},
      volume       = {2023,18},
      school       = {RWTH Aachen University},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {Apprimus Verlag},
      reportid     = {RWTH-2023-05756},
      isbn         = {978-3-98555-160-6},
      series       = {Ergebnisse aus der Produktionstechnik},
      pages        = {1 Online-Ressource : Illustrationen, Diagramme},
      year         = {2023},
      note         = {Druckausgabe: 2023. - Auch veröffentlicht auf dem
                      Publikationsserver der RWTH Aachen University. - Weitere
                      Reihe: Werkzeugmaschinen. - Weitere Reihe: Edition
                      Wissenschaft Apprimus; Dissertation, RWTH Aachen University,
                      2023},
      abstract     = {This thesis provides a framework of efficient experimental
                      and analytical substructuring methods for the reliable
                      prediction of spindle-holder-tool assembly dynamics.
                      Specifically, this implies the prediction of the tool tip
                      Frequency Response Functions (FRFs) as well as the tool
                      tip-Spindle Integrated Displacement Sensors (SIDS) transfer
                      functions for a main spindle equipped with contactless
                      displacement sensors. Here, the holder-tool assembly is
                      modelled analytically whereas the spindle substructure is
                      modelled experimentally. The knowledge of the
                      spindle-holder-tool assembly dynamics is indispensable for a
                      variety of applications such as prediction of stability
                      behavior, process forces, tool deflection during cutting as
                      well as virtual surface quality. For achieving high-quality
                      experimental response models, three important aspects are
                      researched. Firstly, strategies for measurement of
                      displacement-to-force compliances are systematically
                      compared and assessed. Secondly, two new methods for the
                      identification of rotational compliances are proposed based
                      on a modal parameter approach and commercially available
                      rotational accelerometers. Thirdly, an experimental method
                      for obtaining the interface flange-SIDS transfer function
                      matrix and corresponding measurement uncertainty is
                      developed and validated. This is required for prediction the
                      tool tip-SIDS transfer function along with propagated
                      un-certainty bounds. A significant challenge in the
                      analytical response modelling of holder-tool assemblies is
                      that certain features like joint parameters cannot
                      practically be modeled a priori and require additional
                      reference measurements for their parametrization. Instead of
                      using FRFs of the tool clamped in the machine spindle, this
                      thesis utilizes the measurement of reference FRFs in an
                      offline, freely constrained state of the tool assembly. A
                      precise feature parameterization is made possible by the
                      developed extended tool model updating approach. Using this
                      approach, a priori unknown parameters like joint stiffness
                      and effective diameter of the fluted segment are reliably
                      parameterized and validated for several different
                      holder-tool assemblies in a completely offline manner.
                      Furthermore, methods for the accurate beam modelling of
                      various holder features such as balancing holes, tapered
                      segment and holder-inserted tool segment were developed,
                      analyzed and systematically validated. Another valuable
                      contribution of this thesis is demonstrating the utility of
                      the predict-ed tool tip and tool tip-SIDS FRFs for
                      estimating process forces and virtual work-piece quality. In
                      this regard, the practical integration of the developed
                      substructuring methods with an existing virtual quality
                      framework is presented and successfully implemented to
                      estimate process forces and workpiece quality for different
                      milling operations and tool assemblies.},
      cin          = {417310 / 417200},
      ddc          = {620},
      cid          = {$I:(DE-82)417310_20140620$ / $I:(DE-82)417200_20140620$},
      pnm          = {DFG project 245846105 - Experimentelle Substrukturkopplung
                      zur Schwingungsanalyse an Werkzeugmaschinen (245846105)},
      pid          = {G:(GEPRIS)245846105},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      doi          = {10.18154/RWTH-2023-05756},
      url          = {https://publications.rwth-aachen.de/record/959651},
}