In this paper, the vibration transmission properties of a Phononic Crystals (PC) pipe with mass added periodically are investigated, aiming at controlling the vibration of the fluid-filled pipe system. Based on the transfer matrix method, the band gap of such a fluid-filled PC pipe is calculated. The numerical calculation shows that the PC pipe characters a low-frequency vibration band gap, which can be used to suppress the vibration propagation in the pipe system. Further, the influence of several key parameters, such as the size, installation position of the added mass and the damping factor of the material, on the band gap mudulation of PCs pipe are discussed detailedly. Results reveal that the band gap of the PC pipe is adjustable and vibration reduction effect is apparent, thus it can conclude that the periodic design method proposed in this paper could provide a new approach for the vibration control of the fluid-filled pipe system.
Key words
phononic crystals /
vibration control /
added mass /
transfer matrix method
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References
[1] Shen H J, Paidoussis M P, Wen J H,et al.The beam-mode stability of periodic functionally-graded-material shells conveying fluid[J]. Journal of Sound and Vibration, 2014,333(10):2735-2749.
[2] Shen Hui-jie, Wen Ji-hong,Yu Dian-long,et al. Stability of fluid-conveying periodic shells on an elastic foundation with external loads[J]. Journal of Fluids and Structures, 2014,46: 134-148.
[3] 戴安东,陈刚,朱石坚．舰船管路振动噪声控制措施综述[C].2001年船舶与海洋工程研究专集,143：75-78.
[4] 缪旭弘,钱德进,贾地.环形阻振质量隔振降噪的实船应用研究[J].船舶工程,2011,33(1):33-37.
MIAO Xu-hong,QIAN De-jin,JIA Di. Application of ring vibration isolation mass in noise reduction of actual ships[J]. Ships Engineering,2011, 33(1):33-37.
[5] 钱德进,缪旭弘,贾地. 阻振质量在出海管路减振降噪中的应用[J].声学技术,2010,29(6):632-636.
QIAN De-jin,MIAO Xu-hong,JIA Di. Application of vibration isolation mass in noise reduction of sea-water pipe[J]. Technical Acoustics,2010, 29(6):632-636.
[6] 迟乾坤. 充液周期管路弯曲振动带隙特性研究[D].长沙：国防科学技大学,2013.
[7] 沈惠杰. 基于带隙理论的管路系统振动特性研究[D].长沙：国防科学技大学,2009.
[8] 沈惠杰,温激鸿,郁殿龙,等.基于Timoshenko梁模型的周期充液管路弯曲振动带隙特性和传输特性[J]. 物理学报, 2009, 12(8): 257-263.
SHEN Hui-jie,WEN Ji-hong,YU Dian-long,et al. Flexural vibration property of periodic pipe system conveying fluid base on Timoshenko beam epuation[J]. Acta Physics Sinica,2009,12(8):257-263.
[9] 温熙森,温激鸿,郁殿龙,等. 声子晶体[M]. 北京：国防工业出版社,2009.
[10] Lesmez M W. Modal analysis of vibrations in liquid- filled piping system[D]. Michigan State University, 1989.
[11] Yu Dian-long, Liu Yao-zhong, Wang Gang,et al.Flexural vibration band gaps in Timoshenko beams with locally resonant structures[J]. Journal of Applied Physics,2006, 100(12): 124901.
[12] 刘棣华. 粘弹阻尼减振降噪应用技术[M]. 北京:宇航出版社, 1990.
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