Normal impact of hollow balls on flat surfaces

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Bibliographische Detailangaben
Deutscher übersetzter Titel:Normaler Aufprall von drucklosen Bällen auf flachen Böden
Autor:Honda, Yoshihisa
Erschienen in:The engineering of sport 6. Volume 1: Developments for sports : Proceedings of the ISEA 2006 - Munich, Germany
Veröffentlicht:Wien: Springer (Verlag), 2006, S. 367-372, Lit.
Forschungseinrichtung:International Sports Engineering Association
Format: Literatur (SPOLIT)
Publikationstyp: Sammelwerksbeitrag
Medienart: Gedruckte Ressource
Sprache:Englisch
Schlagworte:
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Erfassungsnummer:PU200809003106
Quelle:BISp

Abstract

Normal impact of hollow balls on flat surfaces is theoretically analyzed and the dynamic deformation of hollow balls is derived as an axisymmetric motion of an elastic spherical shell by using modal expansion method, where variation of contact area is taken into account. Numerical calculations were conducted and the dynamic characteristics are discussed. It is found that the center displacement of the ball possesses nearly a half-sine wave form while the reaction force has a triangular time history. It is also shown that the collision time decreases with increasing initial velocity of the ball. Verf.-Referat