| Project/Area Number |
21246128
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Naval and maritime engineering
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
FUJIKUBO Masahiko 大阪大学, 大学院・工学研究科, 教授 (30156848)
IIJIMA Kazuhiro 大阪大学, 大学院・工学研究科, 准教授 (50302758)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
HU Changhong 九州大学, 応用力学研究所, 准教授 (20274532)
HE Guanghua 大阪大学, 大学院・工学研究科, 助教 (50625382)
|
|---|
| Research Collaborator |
SASAKAWA Takuma 大阪大学, 大学院・工学研究科, 大学院学生
WAKABAYASHI Tomi 大阪大学, 大学院・工学研究科, 大学院学生
NAKAGAWA Daisuke 大阪大学, 大学院・工学研究科, 大学院学生
YAMAMOTO Kenta 大阪大学, 大学院・工学研究科, 大学院学生
HARA Takuya 大阪大学, 大学院・工学研究科, 大学院学生
SAKAI Katsuhiro 大阪大学, 大学院・工学研究科, 大学院学生
|
|---|
| Project Period (FY) |
2009 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥38,870,000 (Direct Cost: ¥29,900,000、Indirect Cost: ¥8,970,000)
Fiscal Year 2012: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2010: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2009: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
|
|---|
| Keywords | 流体・構造連成問題 / 数値流体力学 / 波浪衝撃 / 非線形境界要素法 / ランンキンパネル法 / 有限要素法 / 流体構造連成問題 / ランキンパネル法 / 非定常波形解析 / 波浪中抵抗増加 / 青波衝撃 / 圧力計測 / 高速度カメラ / CIP法 |
|---|
| Research Abstract |
The CIP-based Cartesian-grid calculation method for strongly nonlinear wave and rigid-body interaction problems was extended to treat the case of elastic-body motions in waves. A hybrid method was also developed, combining a 3D Rankine panel method for the hydrodynamic analysis and a finite-element method for computing elastic vibration modes, and the effect of elastic modes on wave-induced ship motions was investigated. Furthermore, a time-domain nonlinear calculation method based on the boundary element method was studied, which enabled us to simulate the interaction of wave impact and elastic motion of a vertical plate.Experimental studies were also done, measuring complicate fluid motion near the ship bow caused by the green-water impact by use of a high-speed camera.
|
