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Melnikov Integral Formula for Beam Sea Roll Motion Utilizing a Non-Hamiltonian Exact Heteroclinic Orbit (Part II)
著者
Maki, Atsuo Kobe University|Ministry of Defence
Umeda, Naoya Osaka University
キーワード
Melnikov’s method
Beam seas
Roll motion
Non-Hamiltonian exact heteroclinic orbit
資料タイプ
学術雑誌論文
抄録
In the research filed of nonlinear dynamical system theory it is well known that a homoclinic/heteroclinic point leads to unpredictable motions, such as chaos. Melnikov’s method enables us to judge whether the system has a homoclinic/heteroclinic orbit. Therefore, in order to assess a vessels safety against capsizing, Melnikov’s method has been applied for the investigations of chaos that appears in beam sea rolling. This is because chaos is closely related to capsizing incidents. In a previous paper 1), the formula to predict the capsizing boundary by applying Melnikov’s method to analytically obtain the non-Hamiltonian heteroclinic orbit, was proposed. However, in that paper, limited numerical investigation had been carried out. Therefore further comparative research between the analytical and numerical results is conducted, with the result being that the formula is validated.
掲載誌名
Journal of Marine Science and Technology
ISSN
09484280
14378213
cat書誌ID
AA11098465
出版者
The Japan Society of Naval Architects and Ocean Engineers|Springer Japan
19
3
開始ページ
257
終了ページ
264
発行日
2014-03-06
備考
The final publication is available at www.springerlink.com
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言語
eng
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