Torsional Wave Propagation and Vibration Reducing of Phononic Crystal Pipe with Periodic Torsional Support

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-07-23 DOI:10.1115/1.4055066

Jiang-hai Wu, Hongzhen Zhu, Yu-dong Sun, Mingzhu Su, Z. Yin

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引用次数: 1

Abstract

In this paper, torsional vibration band gap properties of fluid filled pipe were studied by using the transfer matrix method (TMM). Compared with the results carried by FEM software, the established torsional dynamic model and proposed method were verified. The effects of pipe wall`s material and parameters of support on the torsional vibration band gap properties were analyzed. Furthermore, the relationship between rotational dynamic responses and vibration band gaps were investigated. These attenuation regions of responses show good agreement with the frequency of Bragg band gaps. Lastly, we explained the locally resonant phononic crystals band gaps form mechanism from the point of mechanical impedance mismatch theory, results show that the peak frequency of impedance mismatch defines the begin of both LRs and Bragg band gaps. In essence, the locally resonant is the same as periodic support from the impedance theory. The results of this paper could give some valuable suggestions on the vibration control of pipeline system.

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周期性扭转支撑声子晶体管的扭转波传播与减振

本文采用传递矩阵法(TMM)研究了充液管道的扭振带隙特性。通过与有限元软件计算结果的比较，验证了所建立的扭转动力学模型和所提方法的正确性。分析了管壁材料和支承参数对管壁扭振带隙特性的影响。进一步研究了旋转动力响应与振动带隙之间的关系。这些衰减区域与Bragg带隙的频率一致。最后，从机械阻抗失配理论的角度解释了局域谐振声子晶体带隙的形成机理，结果表明阻抗失配的峰值频率定义了LRs和Bragg带隙的起始点。从本质上讲，局部谐振与阻抗理论中的周期支撑相同。本文的研究结果可为管道系统的振动控制提供有价值的建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Pressure Vessel Technology-Transactions of the Asme 工程技术-工程：机械

CiteScore

2.10

自引率

10.00%

发文量

审稿时长

4.2 months

期刊介绍： The Journal of Pressure Vessel Technology is the premier publication for the highest-quality research and interpretive reports on the design, analysis, materials, fabrication, construction, inspection, operation, and failure prevention of pressure vessels, piping, pipelines, power and heating boilers, heat exchangers, reaction vessels, pumps, valves, and other pressure and temperature-bearing components, as well as the nondestructive evaluation of critical components in mechanical engineering applications. Not only does the Journal cover all topics dealing with the design and analysis of pressure vessels, piping, and components, but it also contains discussions of their related codes and standards. Applicable pressure technology areas of interest include: Dynamic and seismic analysis; Equipment qualification; Fabrication; Welding processes and integrity; Operation of vessels and piping; Fatigue and fracture prediction; Finite and boundary element methods; Fluid-structure interaction; High pressure engineering; Elevated temperature analysis and design; Inelastic analysis; Life extension; Lifeline earthquake engineering; PVP materials and their property databases; NDE; safety and reliability; Verification and qualification of software.