Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section

Phononic crystals (PCs) are a novel class of artificial periodic structure, and their band gap (BG) attributes provide a new technical approach for vibration reduction in piping systems. In this paper, the vibration suppression performance and natural properties of fluid-conveying pipes with periodi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Hao Yu, Feng Liang, Yu Qian, Junjie Gong, Yao Chen, An Gao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	periodic structure fluid-conveying pipe band gap free vibration spectral element method Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/61696befdd9d4cafa6250fbf4381892a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:61696befdd9d4cafa6250fbf4381892a
record_format	dspace
spelling	oai:doaj.org-article:61696befdd9d4cafa6250fbf4381892a2021-11-11T15:25:22ZPhononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section10.3390/app1121104852076-3417https://doaj.org/article/61696befdd9d4cafa6250fbf4381892a2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10485https://doaj.org/toc/2076-3417Phononic crystals (PCs) are a novel class of artificial periodic structure, and their band gap (BG) attributes provide a new technical approach for vibration reduction in piping systems. In this paper, the vibration suppression performance and natural properties of fluid-conveying pipes with periodically varying cross-section are investigated. The flexural wave equation of substructure pipes is established based on the classical beam model and traveling wave property. The spectral element method (SEM) is developed for semi-analytical solutions, the accuracy of which is confirmed by comparison with the available literature and the widely used transfer matrix method (TMM). The BG distribution and frequency response of the periodic pipe are attained, and the natural frequencies and mode shapes are also obtained. The effects of some critical parameters are discussed. It is revealed that the BG of the present pipe system is fundamentally induced by the geometrical difference of the substructure cross-section, and it is also related to the substructure length and fluid–structure interaction (FSI). The number of cells does not contribute to the BG region, while it has significant effects on the amplitude attenuation, higher order natural frequencies and mode shapes. The impact of FSI is more evident for the pipes with smaller numbers of cells. Moreover, compared with the conventional TMM, the present SEM is demonstrated more effective for comprehensive analysis of BG characteristics and free vibration of PC dynamical structures.Hao YuFeng LiangYu QianJunjie GongYao ChenAn GaoMDPI AGarticleperiodic structurefluid-conveying pipeband gapfree vibrationspectral element methodTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10485, p 10485 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	periodic structure fluid-conveying pipe band gap free vibration spectral element method Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	periodic structure fluid-conveying pipe band gap free vibration spectral element method Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Hao Yu Feng Liang Yu Qian Junjie Gong Yao Chen An Gao Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section
description	Phononic crystals (PCs) are a novel class of artificial periodic structure, and their band gap (BG) attributes provide a new technical approach for vibration reduction in piping systems. In this paper, the vibration suppression performance and natural properties of fluid-conveying pipes with periodically varying cross-section are investigated. The flexural wave equation of substructure pipes is established based on the classical beam model and traveling wave property. The spectral element method (SEM) is developed for semi-analytical solutions, the accuracy of which is confirmed by comparison with the available literature and the widely used transfer matrix method (TMM). The BG distribution and frequency response of the periodic pipe are attained, and the natural frequencies and mode shapes are also obtained. The effects of some critical parameters are discussed. It is revealed that the BG of the present pipe system is fundamentally induced by the geometrical difference of the substructure cross-section, and it is also related to the substructure length and fluid–structure interaction (FSI). The number of cells does not contribute to the BG region, while it has significant effects on the amplitude attenuation, higher order natural frequencies and mode shapes. The impact of FSI is more evident for the pipes with smaller numbers of cells. Moreover, compared with the conventional TMM, the present SEM is demonstrated more effective for comprehensive analysis of BG characteristics and free vibration of PC dynamical structures.
format	article
author	Hao Yu Feng Liang Yu Qian Junjie Gong Yao Chen An Gao
author_facet	Hao Yu Feng Liang Yu Qian Junjie Gong Yao Chen An Gao
author_sort	Hao Yu
title	Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section
title_short	Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section
title_full	Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section
title_fullStr	Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section
title_full_unstemmed	Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section
title_sort	phononic band gap and free vibration analysis of fluid-conveying pipes with periodically varying cross-section
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/61696befdd9d4cafa6250fbf4381892a
work_keys_str_mv	AT haoyu phononicbandgapandfreevibrationanalysisoffluidconveyingpipeswithperiodicallyvaryingcrosssection AT fengliang phononicbandgapandfreevibrationanalysisoffluidconveyingpipeswithperiodicallyvaryingcrosssection AT yuqian phononicbandgapandfreevibrationanalysisoffluidconveyingpipeswithperiodicallyvaryingcrosssection AT junjiegong phononicbandgapandfreevibrationanalysisoffluidconveyingpipeswithperiodicallyvaryingcrosssection AT yaochen phononicbandgapandfreevibrationanalysisoffluidconveyingpipeswithperiodicallyvaryingcrosssection AT angao phononicbandgapandfreevibrationanalysisoffluidconveyingpipeswithperiodicallyvaryingcrosssection
_version_	1718435311206268928

Phononic Band Gap and Free Vibration Analysis of Fluid-Conveying Pipes with Periodically Varying Cross-Section

Ejemplares similares