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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Thermal tuning on band gaps of 2D phononic crystals considering adhesive layers
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Thermal tuning on band gaps of 2D phononic crystals considering adhesive layers

机译：考虑粘合剂层的2D声子晶体带间隙的热调谐

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摘要

Phononic crystals are very attractive in many applications, such as noise reduction, filters and vibration isolation, due to their special forbidden band gap structures. In the present paper, the investigation of tunable band gaps of 2D phononic crystals with adhesive layers based on thermal changing is conducted. Based on the lumped-mass method, an analytical model of 2D phononic crystals with relatively thin adhesive layers is established, in which the in-plane and out-of-plane modes are both in consideration. The adhesive material is sensitive to temperature so that the band structure can be tuned and controlled by temperature variation. As temperature increases from 20 degrees C-80 degrees C, the first band gap shifts to the frequency zone around 10 kHz, which is included by the audible frequency range. The results propose an important guideline for applications, such as noise suppression using the 2D phononic crystals.
机译：由于其特殊的禁用带隙结构，粘性晶体在许多应用中非常有吸引力，例如降噪，过滤器和振动隔离。 在本文中，进行了基于热变换的粘合层的2D声子晶体的可调谐带间隙的研究。 基于集总质量方法，建立了具有相对薄的粘合剂层的2D声子晶体的分析模型，其中含有面内和面外模式都考虑。 粘合材料对温度敏感，使得可以通过温度变化调谐和控制带结构。 随着温度从20摄氏度增加到20摄氏度，第一带隙向频率区移位为约10kHz，该频率区由可听频率范围包括在内。 结果提出了应用的重要指南，例如使用2D声子晶体的噪声抑制。

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