Ski jumping flight skill analysis based on high-speed video image

Masahide Murakamia, Masato Iwase, Kazuya Seo, Yuji Ohgi, Reno Koyanagi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Mages of the initial 40 m part of a flight of 120-m ski jumping were recorded by a fixed high-speed video camera in Hakuba Ski Jumping Stadium. The time variations of the forward leaning angle and the ski angle of attack were measured from the video image and the aerodynamic forces were calculated from kinematic data. Some correlations were investigated between the reduced jumping distance Dr, which is an initial speed corrected flight distance, and some key angles and the initial transition time, as well as those between Dr and the aerodynamic force coefficients. Jumping performance is compared between advanced jumpers and beginner jumpers.

Original languageEnglish
Pages (from-to)2381-2386
Number of pages6
JournalProcedia Engineering
Volume2
Issue number2
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • Aerodynamic force coefficients
  • Flight distance
  • Image analysis
  • Jumper posture
  • Ski jumping

ASJC Scopus subject areas

  • Engineering(all)

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