| Budget Amount *help |
¥24,310,000 (Direct Cost: ¥18,700,000、Indirect Cost: ¥5,610,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
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| Outline of Final Research Achievements |
Study on wind-induced vibration of long-span light-weight structures has a number of difficulties: the wind load is sensitive to the Reynolds number; coupled vibration of flexible envelope and internal pressures due to unexpected openings is complicated; and fluid-structure interaction analysis is of high computational costs. In this study, we developed an analytical model for analysis of coupled vibration of the structural envelope and internal pressure; moreover, we developed vortex method for fluid-structure interaction analysis; for the structure with complex shape, we explored the SfM (Structure from Motion) technique for shape measurement, and also conducted vibration tests on a real shell structure; and finally, we presented a new composite liquid damper to mitigate long-term structural vibrations of these structures.
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