Pelz, Peter F. ; Vergé, Angela (2014)
Validated Biomechanical Model for Efficiency and Speed of Rowing.
In: Journal of Biomechanics, 47 (13)
doi: 10.1016/j.jbiomech.2014.06.037
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The speed of a competitive rowing crew depends on the number of crew members, their body mass, sex and the type of rowing—sweep rowing or sculling. The time-averaged speed is proportional to the rower׳s body mass to the 1/36th power, to the number of crew members to the1/9th power and to the physiological efficiency (accounted for by the rower׳s sex) to the 1/3rd power. The quality of the rowing shell and propulsion system is captured by one dimensionless parameter that takes the mechanical efficiency, the shape and drag coefficient of the shell and the Froude propulsion efficiency into account. We derive the biomechanical equation for the speed of rowing by two independent methods and further validate it by successfully predicting race times. We derive the theoretical upper limit of the Froude propulsion efficiency for low viscous flows. This upper limit is shown to be a function solely of the velocity ratio of blade to boat speed (i.e., it is completely independent of the blade shape), a result that may also be of interest for other repetitive propulsion systems.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Pelz, Peter F. ; Vergé, Angela |
| Art des Eintrags: | Bibliographie |
| Titel: | Validated Biomechanical Model for Efficiency and Speed of Rowing |
| Sprache: | Englisch |
| Publikationsjahr: | 27 Juni 2014 |
| Ort: | Amsterdam |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Biomechanics |
| Jahrgang/Volume einer Zeitschrift: | 47 |
| (Heft-)Nummer: | 13 |
| DOI: | 10.1016/j.jbiomech.2014.06.037 |
| Kurzbeschreibung (Abstract): | The speed of a competitive rowing crew depends on the number of crew members, their body mass, sex and the type of rowing—sweep rowing or sculling. The time-averaged speed is proportional to the rower׳s body mass to the 1/36th power, to the number of crew members to the1/9th power and to the physiological efficiency (accounted for by the rower׳s sex) to the 1/3rd power. The quality of the rowing shell and propulsion system is captured by one dimensionless parameter that takes the mechanical efficiency, the shape and drag coefficient of the shell and the Froude propulsion efficiency into account. We derive the biomechanical equation for the speed of rowing by two independent methods and further validate it by successfully predicting race times. We derive the theoretical upper limit of the Froude propulsion efficiency for low viscous flows. This upper limit is shown to be a function solely of the velocity ratio of blade to boat speed (i.e., it is completely independent of the blade shape), a result that may also be of interest for other repetitive propulsion systems. |
| Freie Schlagworte: | Speed of rowing, Kleiber׳s law, Allometric scaling, Geometric scaling, Similarity, Froude propulsion efficiency, Theoretical upper limit for repetitive motion |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006) 16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006) > Energieoptimale Fluidenergiemaschinen und Systemkomponenten (2020 aufgegangen in Nachhaltige Kraft- und Arbeitssysteme) DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 805: Beherrschung von Unsicherheit in lasttragenden Systemen des Maschinenbaus |
| Hinterlegungsdatum: | 22 Jul 2014 12:47 |
| Letzte Änderung: | 14 Nov 2024 14:37 |
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