Study on the Vibration of Bulk Carrier

散货船振动研究

• 批准号: 62460145
• 负责人: YAO Tetsuya
• 金额: $ 3.14万
• 依托单位: HIROSHIMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62460145/
• 关键词: Coupled vibration; Bulk carrier; トップサイドタンク

There are several report in which the Violent vibration was measured at the top side tank of bulk carrier. In order to investigate these vibration, the ship was divided into the main bull, bottom and top side tank, and the coupled vibration among these structures was calculated. In this method, the main hull, bottom and top side tank were expressed as the Timoshenko-beam, orthotropic plate and bending-torsional beam respectively. The accuracy of this calculation method was confirmed by the comparison between the calculated and the experimental results. But the violent vibration which was seen on actual ship was not calculated.For this reason, it was considered that the modeling of top side tank is not proper. Then, a method to calculate the vibration of the thin walled elastic beam like the top side tank was proposed, in which the deformation of cross section was considered. The vibration of actual ship was calculated considering deformation effect of cross section of top side tank, and the natural vibration at which the vibration of top side tank becom dominant was obtained.

有几篇报告在散货船顶边舱测量到剧烈振动。为了研究这些振动，将船舶分为主舱、底边舱和顶边舱，并计算这些结构之间的耦合振动。该方法中，主船体、底边舱和顶边舱分别表示为Timoshenko梁、正交各向异性板和弯扭梁。通过计算结果与实验结果的比较，证实了该计算方法的准确性。但实际船舶上看到的剧烈振动并未计算在内，因此认为顶边舱的建模不恰当。然后，提出了一种考虑截面变形的顶边罐等薄壁弹性梁振动计算方法。考虑顶边舱截面变形影响，对实船振动进行计算，得到顶边舱振动占主导地位时的固有振动。

项目成果

道本順一: 西部造船会会報. 78. (1989)

Junichi Michimoto：西方造船师协会公报 78。（1989）

MICHIMOTO, Jun-ichi: "Study on the vibration of top side tank of bulk carrier" Transactions of the West-Japan Society of Naval Architects. 78. (1989)

道本淳一：“散货船顶边舱的振动研究”西日本造船学会汇刊。