Detection of cavities with complicated shape in the ground based on data assmilation, elastic wave simulation and parametric level set and its application to functional diagnosis
| Project/Area Number |
15K14821
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Rural environmental engineering/Planning
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
中畑 和之 愛媛大学, 理工学研究科(工学系), 教授 (20380256)
藤澤 和謙 京都大学, 農学研究科, 准教授 (30510218)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
NAKAMURA Kazuyuki 明治大学, 総号数理学部, 准教授 (40462171)
TAKAGI Tomohiro 京都工芸繊維大学, 大学院 工芸科学研究科, 准教授 (50294260)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | データ同化 / 境界追跡法 / 機能診断 / 逆解析 / 土構造物 / 粒子フィルタ / フェーズフィールド法 / フーリエ記述子 / 空洞調査 |
|---|
| Outline of Final Research Achievements |
When there are one cavity or two cavities in the ground, the number of cavities can be determined from the number of modes and the position and radius are estimated well with assumption of a single circular cavity by PF and Elastic Wave Simulation. PaLS can describe the complex shape of cavity and identification of PaLS parameters by PF make it possible to estimation of complex shape of the cavity. When the number of cavities is three or higher, the accuracy of estimation of position is very low. This is because the number of simulation data is less. Hence, it may be possible to improve the accuracy by increasing the number of particles and receivers for PF, which is our goal for next step.
|
Report
(4 results)
Research Products
(79 results)
