한국컴퓨터정보학회논문지 (Journal of the Korea Society of Computer and Information)

한국컴퓨터정보학회 (Korean Society of Computer Information)
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공중으로 점프한 차량의 최대 높이 및 속도

Maximum Height and Velocity of Jumping Car in The Air

  • 신성윤 (원광대학교 정보.전자상거래학부) ;
  • 이현창 (원광대학교 정보.전자상거래학부)
  • Shin, Seong-Yoon (Dept. of Computer Information Engineering, Kunsan National University) ;
  • Lee, Hyun-Chang (Division of Information and Electronic Commerce, Wonkwang University)
  • 투고 : 2012.09.24
  • 심사 : 2012.10.16
  • 발행 : 2012.10.31
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초록

자유 낙하하는 물체가 받는 힘은 중력뿐이다. 우리는 중력만을 받아서 운동하는 것을 자유 낙하 운동이라고 하고 자유 낙하하는 물체를 자유낙체라 한다. 즉, 자유낙체란 물체의 초기 운동 상태와 무관하게 중력의 영향으로만 자유롭게 낙하하는 물체를 말하는 것이다. 본 논문에서는 공기의 저항을 무시하고, 수직방향으로 짧은 거리의 범위내에서 고도에 의한 자유낙하 가속도의 변화가 없다는 가정을 한다. 이러한 가정 하에서 자동차가 수직 상 방향으로 도약하여 최고점에 도달하는 시간, 최대높이, 자동차가 출발 위치로 돌아오는 시간과 자동차의 속도, 자동차가 땅에 떨어질 때의 시간 및 속도에 대해 알 수 있다. 이는 텔레매틱스에서 자동차나 오토바이가 도약하는 정도와 사고의 위험을 측정할 수 있다.

An free-fall object is received only force of gravity. Movement that only accept gravity is free-fall movement, and a free-falling object is free falling body. In other words, free falling body is only freely falling objects under the influence of gravity, regardless of the initial state of objects movement. In this paper, we assume, ignoring the resistance of the air, and the free-fall acceleration by the height does not change within the range of the short distance in the vertical direction. Under these assumptions, we can know about time and maximum height to reach the peak point from jumping vertically upward direction, time and speed of the car return to the starting position, and time and speed when the car fall to the ground. It can be measured by jumping degree and risk of accident from car or motorcycle in telematics.

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참고문헌

  1. W Bich, G D'Agostino, A Germak and F Pennecchi, "Reconstruction of the free-falling body trajectory in a rise-and-fall absolute ballistic gravimeter," Metrologia, Vol. 45, No. 3, pp. 308-312, 2008. https://doi.org/10.1088/0026-1394/45/3/007
  2. Andrei F. Illarionov, Andrei M. Beloborodov, "Free-fall accretion and emitting caustics in wind-fed X-ray sources," Monthly Notices of the Royal Astronomical Society, V. 323, I. 1, pp. 159 -166, May 2001. https://doi.org/10.1046/j.1365-8711.2001.04132.x
  3. Byung-Joo Kim, Jung-Woo Kwon, Tae-Han Kim, Se-Jin Ji, Jong-Hee Park, "Modelling of Downward Collision in Virtual Environment," Proceedings of KIISE, Vol. 30, No. 1(B), pp. 1-650, 2003. 4.
  4. Hyun-Min Wang, Kwang-Joon Woo, "Analysis of Load Value acting Free Falling Object according to Disturbance using Nonlinear Load Control Model," Journal of the Institute of Electronics Engineers of Korea. SC, Vol. 47, No. 2, pp. 1-59, 2010. 3.
  5. Sang-Jin Park, Gun-Hee Jang, Cheol-Soon Kim, Jae-Hyuk Han, "Characterization and Detection of a Free-falling State of a Mobile HDD Using the Electromechanical Analysis in a Rotating Spindle System," Transactions of the Korean society for noise and vibration engineering, pp. 324-329, 2005.
  6. H.-M. Wang, K.-J. Woo, "Analysis of Load Value acting Free Falling Object according to Disturbance using Nonlinear Load Control Model," Journal of The Institute of Electronics Engineers of Korea, Vol 47 SC, No. 2, pp. 55-59, 2010. 3.
  7. H. Nam, H. Kim, "Experimental study on the motion of a free-falling paper in a wide range of aspect ratio," Proceedings of The Korean Society of Mechanical Engineers, pp. 3224-3228, 2010. 11.
  8. A. F. Zakki, D. M. Vae, C. Bo, "Study on Launching Parameters on the Motion Pattern of New Type Free-fall Lifeboat," Proceedings of Joint Conference of the Korean Association of Ocean Science and Technology Societies, pp, 900-904, 2012.5,
  9. Ji S. M., "An Physical Study on Motion Dynamics of Circular Disks Freely Falling in Water," Dept. of Naval Architecture and Ocean Engineering, Graduate Sclool of SNU, 2008. 2.
  10. http://edufile.educlub.com/edu_member/edupop- 14/d ata/8071_lms-02.pdf