On the Manoeuvring Performance of a Podded Propulsion Ship

• Project/Area Number: 25420869
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Kyushu University
• Principal Investigator: Ibaragi Hiroshi 九州大学, 工学(系)研究科(研究院), 助教 (20274508)
• Co-Investigator(Kenkyū-buntansha): FURUKAWA Yoshitaka 九州大学, 大学院工学研究院, 教授 (90253492)
• Research Collaborator: NAKIRI Yasuaki 九州大学, 大学院工学府, 技術職員
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
• Keywords: ポッド / 流体力 / 模型試験 / 針路安定性 / 運動性 / 操縦性 / 内航貨物船

Outline of Final Research Achievements

Using the model ships of conventional 499GT coastwise ship and 499GT coastwise ship with a POD propulsion unit, captive model tests were carried out to measure hydrodynamic forces acting on hulls. By the measured hydrodynamic forces, a tendency of course instability for ship with a POD was evaluated, and to improve the course stability, the effect of skeg and fin were considered. Based on the hydrodynamic forces for the hull with large drift angle and large heading angle in the case of berthing or unberthing, and based on the measured forces for the POD unit, estimated calculation is avairable for manoeuvring performance of 499 GT coastwise ship with a POD propulsion unit.