近年來，聲學超穎材料在低頻時表現出非常良好的隔音效能。低頻噪音通常伴隨著動力機械的運轉產生，而傳統厚重的水泥牆是很難達成阻擋這類型的噪音干擾，但是如果使用聲學超穎材料，就能很容易達成這個目標。雖然這些超穎材料的結構很輕、很薄，但依然可以有效的阻隔聲音傳遞。在本篇論文中，使用Abaqus有限元素分析模擬結構共振模態與對應的自然頻率，並探討對於隔音效果的影響，進一步推測薄膜與中心質量與穿透損失曲線的關係。我們調整了中心質量的重量與面積，以及作用於薄膜邊界上的張力，還有多個薄膜層疊或是平放排列後對穿透損失曲線的影響。更進一步的將中心質量改為方框的形式，以及同時鑲嵌中心質量與框架質量對傳遞損失造成的效果，還有同時鑲嵌兩個質量的狀況，都能夠看到藉由切割薄膜區域帶來的影響，進而產生多個有效的隔音頻率。

In recent years, acoustic metamaterials have displayed superior sound insulation quality at low frequencies. Low frequency noise is often associated with machines when they are being operated. It is hard to prevent this type of disturbance with a traditional heavy concrete wall. It is much easier to achieve this using acoustic metamaterials. Although the structure of these metamaterials is light and thin, they still work well for insulating noise. In this thesis, we use finite element analysis to simulate membrane-type acoustic metamaterials in order to explore the quality of sound insulation of acoustic metamaterials. We then discuss the relationship of the membrane and the mass corresponding to the transmission loss (TL) curve. We adjusted the mass weight, area and the tension forced on the edges of the membrane, and considered the effect on the TL curve with multiple cell arrangements, stacks and arrays. Furthermore, the central mass of the structure was replaced by the frame mass, and we considered the structure with both central mass and frame mass or a membrane inlaid with two masses.

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