Comparative Analysis of Ski Jumping In-run Hill Models Profile

Ihor ZANEVSKYY; Lyudmyla ZANEVSKA

Makale detayları

Comparative Analysis of Ski Jumping In-run Hill Models Profile

Yazarlar:

Ihor ZANEVSKYY | Lyudmyla ZANEVSKA

Yayıncı:

Uluslararası Bilim Kültür ve Spor Derneği

Ana Başlıklar:

Sağlık teşvikleri

Dergi:

International Journal of Sport Culture and Science 2021 Vol.9 Issue 3, pp.300-315

Belge Tipi:

Makale

Yayın Tarihi:

9/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000475131

Sıklık:

Üç Aylık

pISSN:

2148-1148

Özet:

 

Background. The aim of this research was done to create calculating methods for virtual replacing of a circle arc segment on the in-run hill. This replacement should not change the angle of the in-run hill inclination, but could change the length of the straight-line segment to such an extent that it can follow geometrical parameters of the in-runs in vogue.
Materials and Methods. 38 in-runs hills certificated by International Ski Federation; mechanical and mathematical modelling of the in-run hill profile modelled with cycloid, hyperbola, or inclined quadratic parabola with decreased ratio of vertical to horizontal dimensions.
Results and Discussion. The decreased ratio of the vertical to horizontal dimensions was in the range of 2.71–0.73% when cycloid was used, 16.33–8.60% when hyperbola was used, and 4.58–0.90% when inclined quadratic parabola was used. When the circle arc was replaced with a quadratic parabola or an inclined cubic parabola, the ratio of the dimensions increased. If the difference between the angles of inclination of straight-line segments increased, this ratio increased too. For the certificated in-runs, the ratio varied in the range of 2.21–8.61% when a quadratic parabola was used and 14.64–19.04% when inclined cubic parabola was used.

Makale detayları

Comparative Analysis of Ski Jumping In-run Hill Models Profile

Yazarlar: Ihor ZANEVSKYY | Lyudmyla ZANEVSKA

Yayıncı: Uluslararası Bilim Kültür ve Spor Derneği

Ana Başlıklar: Sağlık teşvikleri

Dergi: International Journal of Sport Culture and Science 2021 Vol.9 Issue 3, pp.300-315

Belge Tipi: Makale

Yayın Tarihi: 9/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000475131

Sıklık: Üç Aylık

pISSN: 2148-1148

Sayı

Yazarlar:

Ihor ZANEVSKYY | Lyudmyla ZANEVSKA

Yayıncı:

Uluslararası Bilim Kültür ve Spor Derneği

Ana Başlıklar:

Sağlık teşvikleri

Dergi:

International Journal of Sport Culture and Science 2021 Vol.9 Issue 3, pp.300-315

Belge Tipi:

Makale

Yayın Tarihi:

9/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000475131

Sıklık:

Üç Aylık

pISSN:

2148-1148