王博涵, 杨德庆. 弹性体反共振俘能器设计方法与减振机理研究[J]. 中国舰船研究. DOI: 10.19693/j.issn.1673-3185.03675
引用本文: 王博涵, 杨德庆. 弹性体反共振俘能器设计方法与减振机理研究[J]. 中国舰船研究. DOI: 10.19693/j.issn.1673-3185.03675
Research on Design Method and Vibration Reduction Mechanism of Elastic Anti-Resonant Energy Harvester[J]. Chinese Journal of Ship Research. DOI: 10.19693/j.issn.1673-3185.03675
Citation: Research on Design Method and Vibration Reduction Mechanism of Elastic Anti-Resonant Energy Harvester[J]. Chinese Journal of Ship Research. DOI: 10.19693/j.issn.1673-3185.03675

弹性体反共振俘能器设计方法与减振机理研究

Research on Design Method and Vibration Reduction Mechanism of Elastic Anti-Resonant Energy Harvester

  • 摘要: 【目的】借鉴声学黑洞与反共振原理,提出一种多频域减振的弹性体反共振俘能器。与传统内嵌式声学黑洞结构相比,其具有附加质量小、不破坏结构强度、可以任意组合设计等特点。【方法】通过调节俘能器的结构参数,可以精确实现动力设备振源以及传递路径上的低频及中频减振,弥补了传统声学黑洞结构低频减振效果差的不足。应用Rayleigh法推导弹性体反共振俘能器的基频解析解,并将特殊设计的弹性体反共振俘能器应用于典型船舶板架减振,验证其减振效果。最后根据计算结果分析俘能器减振规律,对其进行相应的改良,并设计实验用板架,计算改良的弹性体反共振俘能器的减振效果。【结果】研究表明,安装九层俘能器的机舱板架在其一阶共振频率附近的平均振动速度级减小了约8.7dB,频响曲线在共振频率处的峰值有一个宽频带范围的削减。改良后的弹性体反共振俘能器可以通过合理调节附

     

    Abstract: Objectives Based on the theory of acoustic black hole and anti-resonance, this paper presents an elastic anti-resonant energy harvester suitable for multi frequency domain vibration reduction. Compared with the traditional embedded two-dimensional acoustic black hole structure, it has the characteristics of small additional mass, non-destructive structure strength, and can be designed in any combination. Methods By adjusting the structural parameters of the energy harvester, the low and medium frequency vibration on the transmission path and the source of the power equipment can be reduced accurately, which for the disadvantage of the traditional acoustic black hole structure with poor low-frequency range vibration reduction effect. In this paper, the Rayleigh method is used to

     

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