Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (9): 1487-1496.doi: https://doi.org/10.1007/s10483-023-3022-8

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Enhanced vibration suppression and energy harvesting in fluid-conveying pipes

Yang JIN1, Tianzhi YANG2   

  1. 1. Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin 300300, China;
    2. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
  • Received:2023-02-28 Revised:2023-05-31 Published:2023-08-28
  • Contact: Tianzhi YANG, E-mail: yangtianzhi@me.neu.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (No.2022YFC3002502)

Abstract: A novel vibration absorber is designed to suppress vibrations in fluid-conveying pipes subject to varying fluid speeds. The proposed absorber combines the fundamental principles of nonlinear energy sinks (NESs) and nonlinear energy harvesters (NEHs). The governing equation is derived, and a second-order discrete system is used to assess the performance of the developed device. The results demonstrate that the proposed absorber achieves significantly enhanced energy dissipation efficiency, reaching up to 95%, over a wider frequency range. Additionally, it successfully harvests additional electric energy. This research establishes a promising avenue for the development of new nonlinear devices aimed at suppressing fluid-conveying pipe vibrations across a broad frequency spectrum.

Key words: fluid-conveying pipe, vibration suppression, nonlinear energy sink (NES), electromagnetic energy harvesting

2010 MSC Number: 

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