| Project/Area Number |
25560162
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Kyoto University |
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Principal Investigator |
SHIRATO Hiromichi 京都大学, 工学(系)研究科(研究院), 教授 (70150323)
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| Co-Investigator(Kenkyū-buntansha) |
YAGI Tomomi 京都大学, 工学研究科, 教授 (30293905)
HATTORI Hiroshi 京都大学, 工学(系)研究科(研究院), 助教 (30576236)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 横風 / 横転 / 規制風速 / 短期風況予測 / 閾値超過確率 / オーバーシュート / 横力 / ヨーイングモーメント / 閾値通過確率 / 非定常空気力 / 移動車両 / 風速短期予測 / カオス時系列予測 / ニューラルネットワーク / 横風横転 / 横転警戒情報 / 横力係数 |
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| Outline of Final Research Achievements |
In order to assure the safety of a moving vehicle for overturning due to crosswinds, this study aims to develop a system to provide an information of safety driving speed to a truck driver before entering severe wind condition. It was found that: (1) the upcrossing rate of relative wind speed for an moving vehicle depends sensitively on the relative wind direction, and the rate increases in case of against relative wind direction. (2) When a vehicle encounters sudden crosswind, the side force on a vehicle shows quasi-static response which is determined relative wind speed and direction in each instance. On the contrary, there is significant overshoot in the yawing moment response. (3) The short-term wind speed prediction is developed by soft computing technique, which enables to predict average wind speed in several minutes future with a certain level of accuracy.
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