Mathematical Analysis for a New Tennis Ball Launcher

• Autorzy: Wójcicki K. , Puciłowski K. , Kulesza Z. S.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the mathematical analysis for the design of a new tennis ball launcher in order to assess the possibilities for its technical implementation. First, traditional launchers are described. Next, several new requirements improving training possibilities of such machines are suggested. The motion equation of the flying tennis ball is formulated and numerically solved. This makes it possible to analyze the trajectories of the ball for different initial conditions: elevation and heading angles, as well as the rollers angle. Then, the mathematical analysis of the launcher with two counter rotating rollers is presented. Stiffness (Young's) modulus and friction coefficients for the typical tennis ball have been determined ex-perimentally. Based on these, initial conditions for the throw have been found: rotating speeds of the rollers and powers of the driving motors.

Słowa kluczowe

EN

launcher; trajectories; mathematical analysis

PL

wyrzutnia; trajektorie; analiza matematyczna

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2011
• Tom: Vol. 5, no. 4
• Strony: 110--119
• Opis fizyczny: Bibliogr. 9 poz., Wykr..

Twórcy

autor

Wójcicki K.

autor

Puciłowski K.

autor

Kulesza Z. S.

• Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland,

Bibliografia

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