| Budget Amount *help |
¥44,980,000 (Direct Cost: ¥34,600,000、Indirect Cost: ¥10,380,000)
Fiscal Year 2017: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2016: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2015: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2014: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2013: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
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| Outline of Final Research Achievements |
With a view to establishing a control strategy for generating an essentially global zone of quiet, evanescent waves which do not propagate in the air play a significant role in the present research. As the preceding research clarified the existence of the evanescent modes in a strongly coupled cavity, the fundamental properties of the generation mechanism are further investigated. The evanescent waves are also found even in a structural vibration of a finite panel in the open space, so that the point source array is then employed to emulate the vibration patterns that produce the evanescent waves. As with a real residential circumstances, the zone of quiet is experimentally achieved using both vibration and sound control.
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