On Estimation of Roll Damping at Resonance using Parametric Identification Technique and Free Roll

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概要

• 論文の詳細を見る

• A parameter identification method is used to estimate linear damping at natural frequency (at resonance frequency) as a function of wave steepness. An uncoupled nonlinear equation representing roll motion of ships with linear damping and nonlinear restoring moment is used for this purpose. Linear damping is also estimated using analysis of free roll. In order to see if any influence of wave steepness on damping coefficient, responses is calculated with coefficients obtained from parametric estimation method and free roll analysis. Responses obtained with damping coefficient obtained form free roll are in good agreement with experiments irrespective of wave steepness.

• 社団法人日本航海学会の論文
• 2007-03-25

著者

• 庄司 邦昭

  Tokyo University of Mercantile Marine

• Tata S.

  Tokyo University Of Marine Science And Technology

• SHOJI Kuniaki

  Tokyo University of Marine Science and Technology

• MINAMI Kiyokazu

  Tokyo University of Marine Science and Technology

• MITA Shigeo

  Tokyo University of Marine Science and Technology

• 南 清和

  Tokyo University of Marine Science and Technology

関連論文

• 橋脚周りの風の乱れが接航する船の保針におよぼす影響について
• On Estimation of Roll Damping at Resonance using Parametric Identification Technique and Free Roll
• PMM tests in a circulating water channel and nonlinear analysis

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