Analytical Studies on Risk of Collision

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  • 衝突の危険についての解折(日本航海学会第28回講演会)
  • 衝突の危険についての解析
  • ショウトツ ノ キケン ニ ツイテ ノ カイセキ

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Abstract

When two vessels are crossing, involved risk of collision could have been considered as a rate of temporal change of successive bearings, which can be expressed by the following formula ; [numerical formula] l/ υ_<a, >, which is herein after called "allowance modulus" l: the distance between centers of each vessels, when collided with. υ_<a1> υ_b: velocity of these vessels ω: angle between courses of vessels ρ_t is "relative velocity modulus" and it is ρ_t=√<1-2(K+Δ_t)cosω+(K+Δ_t)^2> K is "speed modulus" and eguals υ_b/υ_a we shall proceed analytical studies here after by the aid of those modulus above mentioned.

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