Ultimate strength of ship structure and its uncertainty model
| Project/Area Number |
20246126
|
|---|
| 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 |
FUJIKUBO Masahiko Osaka University, 工学研究科, 教授 (30156848)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
IIJIMA Kazuhiro 大阪大学, 工学研究科, 講師 (50302758)
OKAZAWA Shigenobu 広島大学, 工学研究科, 准教授 (10312620)
YANAGIHARA Daisuke 愛媛大学, 理工学研究科, 准教授 (10294539)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2009: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2008: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
|
|---|
| Keywords | 船体構造 / 最終強度 / 不確定性 / 損傷 / リスク解析 / 船舶工学 / 構造工学 / 座屈・最終強度 / 理想化構造要素法 / 確率モデル |
|---|
| Research Abstract |
The ultimate strength of ship structures in the damaged as well as intact condition is studied including the uncertainty in the strength. The following achievements were made: (1) The ultimate strength of a continuous stiffened panel with crack damage under combined thrust and lateral pressure were investigated ; (2) The model uncertainty in the prediction of the ultimate longitudinal bending strength of a hull girder using Smith method was quantified ; (3) The Smith method was extended to be applied to the cross section with damages ; (4) ISUM system for the efficient analysis of the ultimate strength of a ship structure with and without damages were developed ; (5) A dynamical model to predict the collapse behavior of a ship hull girder considering the interaction between plastic deformation and fluid forcse was developed and verified by the tank test.
|
Report
(4 results)
Research Products
(12 results)
