In-plane wave propagation analysis of fluid-filled L-Shape pipe with multiple supports by using impedance synthesis method

Jiang hai Wu (Corresponding author), Arris S. Tijsseling, Yu dong Sun, Zhi yong Yin

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

In order to reduce the vibration of planar pipe systems assembled by multiple segments, bends and supports, an impedance synthesis method, which is based on the Timoshenko beam theory, is used to analyze vibration and wave propagation characteristics. Due to junction coupling at unanchored bends, there exists interesting hydraulic and structural wave transmission and reflection. By comparing the natural frequencies and dynamic responses with results available in the literature and with results of the finite-element method, the present calculation method is validated. Based on the relation between the wave number and the propagation band gap, parametric studies of a pipe system with periodic supports are presented. In addition, novel experiments are carried out to validate the present method and to investigate the dynamic response of a pipe system with periodic supports. The results of this paper may provide guidance for vibration reduction of supported pipe systems with elbows.

Original languageEnglish
Article number104234
Number of pages9
JournalInternational Journal of Pressure Vessels and Piping
Volume188
DOIs
Publication statusPublished - Dec 2020

Keywords

  • Fluid-structure interaction(FSI)
  • Impedance synthesis method
  • Periodic support
  • Pipe system
  • Propagation band gap
  • Wave transfer

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