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Article Dans Une Revue Procedia Engineering Année : 2012

Vibro-acoustic of table tennis rackets at ball impact: influence of the blade plywood composition

Lionel Manin
Marc Poggi
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  • PersonId : 937741
Nicolas Havard
  • Fonction : Auteur
  • PersonId : 937742

Résumé

The performances of a table tennis racket can be qualified with several adjectives like: fast, slow, stiff, adhesive, controllable, etc. These qualifications are subjective since they are relative to the sensory analysis made by each player. It appears that the noise produced at the ball impact on a racket has a great influence on the opinion that a player can give about a racket. Moreover, the sound emitted at the stroke can be appreciated differently among several players. Hence a good sound may give a positive a priori to the player racket appreciation. The work presented first demonstrates the correlation between the acoustic frequency spectrum and the vibration frequency spectrum of a racket following the ball impact. The analysis is first performed on the racket blades without rubbers glued on. The vibration modes that produce the sound at the ball impact were identified experimentally. It is shown that there are two essential modes responsible of the sound emitted. In second, comparisons were made between several rackets composed of different composite plywoods. Their influence on the sound emitted is shown experimentally. Indeed, depending on the wood essences of the different plies, their thickness and their fibers relative orientation the sound produced will be different. Then the influence of the rubbers glued on both blade sides is studied. The vibration modes are the same but the frequencies are lower. The sound can be qualified as sharp, long, clear, deep, hollow, and plain. Some correlations with the player appreciations are made.

Dates et versions

hal-00797607 , version 1 (06-03-2013)

Identifiants

Citer

Lionel Manin, Florian Gabert, Marc Poggi, Nicolas Havard. Vibro-acoustic of table tennis rackets at ball impact: influence of the blade plywood composition. Procedia Engineering, 2012, 34, pp.604-609. ⟨10.1016/j.proeng.2012.04.103⟩. ⟨hal-00797607⟩
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