| Project/Area Number |
25350490
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Social systems engineering/Safety system
|
|---|
| Research Institution | 防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群) |
|---|
Principal Investigator |
Yuge Tetsushi 防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工, 電気情報学群, 教授 (50546041)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YANAGI Shigeru 防衛大学校, 電気情報学群, 教授 (10546039)
|
|---|
| Research Collaborator |
KITAGAWA Tomohiro
MARUYAMA Megumi
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
|
|---|
| Keywords | 共通原因故障 / 確率論的安全評価 / 信頼性 / 安全性 / リスク / 最適運用方策 / コストレート |
|---|
| Outline of Final Research Achievements |
This study considered a probabilistic safety assessment and the optimal maintenance policy for safety related systems considering common-cause failures.
We obtained the following results;
(1) Improvement of calculation efficiency in evaluating the top event probability of dynamic fault trees considering common-cause failures. (2) Improvement of the coverage of alpha-factor method and estimation of errors in system failure probability. (3) Optimal maintenance policy for the system considering the availability and the cost.
|
