벌브를 가진 쌍동형 선박의 종동요 응답 스펙트럼 분석 |
서광철, 이창우, Mehmet Atlar, 이경우, 김옥석 |
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Analysis on the Pitch Response Spectra of a Catamaran with Bulb |
Kwang-Cheol Seo, Chang-Woo Lee, Mehmet Atlar, Gyoung-Woo Lee, Ok-Sok Gim |
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Abstract |
In this study, a commercial seakeeping program Seakeeper, integrated into Maxsurf, which is based on the linear strip theory was employed to compare the effect of bulbous bow (with/without) on motion response characteristics in a 18-meter catamaran. The seakeeping analyses were conducted at several Beaufort wind conditions such as scale No. 3, No. 4 and No. 5 based on ITTC wave spectrum. Pitch motion response spectrum was calculated at Head sea, Head & bow sea and Beam sea as encounter angles. Hull form of a catamaran with bulb showed the maximum 20% decrease of pitch motion response as compared to that of hull form without bulb. |
Key Words:
ITTC 파스펙트럼
Catamaran;Hull form design;Motion response spectrum;Strip theory;ITTC wave spectrum |
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