To provide a vibration reduction device having an acoustic meta structure that can have a plurality of stop bands so that vibration and noise are blocked in a wider range.SOLUTION: A vibration reduction device of an acoustic meta structure of the present invention is a vibration reduction device having an acoustic meta structure mounted to a vehicle body and blocking a vibration transmitted through the vehicle body, including: a frame having a cross shape mounted to the vehicle body and separating a predetermined space into certain regions; and a vibrator formed at a corner portion of each of the regions separated by the frame and configured to have its own natural frequency to block a vibration transmitted from the vehicle body through the frame.SELECTED DRAWING: Figure 1
【課題】複数の停止帯域を有することができ広い範囲で振動および騒音を遮断することができる音響メタ構造の振動低減装置を提供する。【解決手段】本発明の音響メタ構造の振動低減装置は、車体に装着されて前記車体を通じて伝達される振動を遮断する音響メタ構造を有する振動低減装置であって、前記車体に装着されて一定空間を一定領域に区画する十字形状のフレーム、および前記フレームによって区画される各領域のコーナー部に構成され、それぞれの固有振動数を有するように構成されて前記車体から前記フレームを通じて伝達される振動を遮断する振動子を含むことを特徴とする。【選択図】図1
VIBRATION REDUCTION DEVICE HAVING ACOUSTIC META STRUCTURE
音響メタ構造の振動低減装置
2020-06-11
Patent
Electronic Resource
Japanese
VIBRATION REDUCTION DEVICE HAVING ACOUSTIC META STRUCTURE
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