한국운동역학회지 (Korean Journal of Applied Biomechanics)

  • 제16권1호
  • /
  • Pages.129-138
  • /
  • 2006
  • /
  • 1226-2226(pISSN)
  • /
  • 2093-9752(eISSN)
한국운동역학회 (Korean Society of Applied Biomechanics)
권호 표지
DOI QR코드

DOI QR Code

회전하는 탁구공의 비행경로 예측에 대한 연구

A Study of the prediction of spinning table-tennis balls

  • 발행 : 2006.03.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The motion of a spinning table-tennis ball is investigated in both theory and experiment. The equation of motion of spinning table-tennis ball is made using aerodynamics and calculated by C++ program In theoretical part, gravity, drag force and lift force are regarded as main force. Velocity, angular velocity, mass and Drag and lift coefficients are considered as a independent variable. Experiments are made by a digital stroboscope, a digital camera and a mirror, and snap multi-exposed images were took as a dependent result In experimental part, both magnitude and direction of velocity and angular velocity are changed in each situation. The predicted three-dimensional trajectories of spinning balls are compared with experimental trajectories. As a result the theoretical trajectories were predicted within 10% of experimental trajectories.

키워드

참고문헌

  1. 이중숙(1997). 마그누스 효과의 스포츠 활용 방안. 부산여자대학교 자연과학대학논문집 제13집. 336-355
  2. Adair, R. K.(2002). The physics of baseball, 3rd ed. Harpercollins, New York., NY
  3. Alaways, L. W..(1998). Aerodynamics of the curve-ball- An investigation of the effects of angular velocity on baseball trajectories. PhD thesis, University of Califonia, Davis, Davis, CA. 1-131
  4. Alaways, L.W., Mish, S. P., And Hubbard, M.(2001). Identification of release condition and aerody- namic forces in pitched-baseball trajectories. Journal of Applied Biomechanics 17. 63-76 https://doi.org/10.1123/jab.17.1.63
  5. Andrew, W. Nowick. (1999) Forces that govern a baseball's flight path. 1-5
  6. Arfken, G.(1985.) Mathematical Methods for Physicists, 3rd ed. Orlando, FL: Academic Press, pp. 492-493
  7. Christian. Theobalt, Irene Albrechi, Jorg, Haber, Marcus, Magonor, Hans-peter, seidel. Pitching a baseball- Tracking high-speed motion with multi-exposure lmages. Ryutaro. Himeno, Hideki. Matsumoto, Shun, Doic, (2000). A numerical analysis of flows around a rotating baseball. Riken Review No 30 : Focused on high performance computing in RIKEN 1999, 20-24,
  8. Frohlichl-Cliff.(1984). Aerodynamic drag crisis and its possible effect on the flight of baseballs. American Journal of Physics.
  9. John. C. Adams. Flight mechanics of a spinning dimpled spherrid. The American Society of Mechanical Engineers.
  10. Michael, Berger.(2000). Physics of baseball a study of pitching. 1-26
  11. Watts and Ferrer.(1987). The lateral force on a spinning sphere: Aerodynamics of a curveball. Ameri- can Journal of Physics.