| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
Investigated the mode of propagation of ground vibration that occurs with the operation of large wind turbines. The first attempt was to clarify the change of vibration with distance from the frequency analysis of vibration by FFT, and obtain the hypothesis that the soil quality where the wind turbine is located might be the cause.Next, measurements in an area where wind turbine pollution was progressing, and tried to explain the experience of local residents from a descriptive perspective．As a series of research results, the suggestion that the annoyance problem of the wind turbines should be analyzed from the ground vibration in addition to the air vibration.
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