Abele, Eberhard ; Dohnal, Fadi ; Feulner, Michael ; Sielaff, Tilo ; Daume, Christian (2018)
Numerical Investigation of Chatter Suppression via Parametric Anti-Resonance in a Motorized Spindle unit During Milling.
In: Production Engineering : WGP, Springer Verlag, Heidelberg, 12 (Issue 3-4)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A new concept for increasing process stability during milling processes is presented utilizing a parametric anti-resonance. The beneficial effect is examined by numerical calculations in the time domain for an example spindle which is supported conventionally by ball bearings and is equipped with an additional active magnetic bearing that enables the realization of a deliberate parametric excitation. In the present study the stiffness of this active support bearing is changed periodically with time. The parametric excitation is tuned to a parametric anti-resonance which triggers the transfer of vibration energy between the vibration modes of the underlying system without this additional time-periodicity. It is highlighted how vibration energy is transferred from the first bending mode of the rotor, which is the most critical one by means of regenerative chatter, to a mode with higher damping in order to increase the effective damping of the entire spindle drive unit.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Abele, Eberhard ; Dohnal, Fadi ; Feulner, Michael ; Sielaff, Tilo ; Daume, Christian |
| Art des Eintrags: | Bibliographie |
| Titel: | Numerical Investigation of Chatter Suppression via Parametric Anti-Resonance in a Motorized Spindle unit During Milling |
| Sprache: | Englisch |
| Publikationsjahr: | 2018 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Production Engineering : WGP, Springer Verlag, Heidelberg |
| Jahrgang/Volume einer Zeitschrift: | 12 |
| (Heft-)Nummer: | Issue 3-4 |
| URL / URN: | https://doi.org/10.1007/s11740-018-0789-0 |
| Kurzbeschreibung (Abstract): | A new concept for increasing process stability during milling processes is presented utilizing a parametric anti-resonance. The beneficial effect is examined by numerical calculations in the time domain for an example spindle which is supported conventionally by ball bearings and is equipped with an additional active magnetic bearing that enables the realization of a deliberate parametric excitation. In the present study the stiffness of this active support bearing is changed periodically with time. The parametric excitation is tuned to a parametric anti-resonance which triggers the transfer of vibration energy between the vibration modes of the underlying system without this additional time-periodicity. It is highlighted how vibration energy is transferred from the first bending mode of the rotor, which is the most critical one by means of regenerative chatter, to a mode with higher damping in order to increase the effective damping of the entire spindle drive unit. |
| Freie Schlagworte: | Milling, Parametric anti-resonance, Magnetic bearing, Energy transfer |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Produktionsmanagement und Werkzeugmaschinen (PTW) 16 Fachbereich Maschinenbau > Institut für Produktionsmanagement und Werkzeugmaschinen (PTW) > Werkzeugmaschinen und Komponenten (2021 aufgegangen in TEC Fertigungstechnologie) |
| Hinterlegungsdatum: | 06 Jul 2018 12:20 |
| Letzte Änderung: | 06 Jul 2018 12:20 |
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