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<p>This study investigates the effectiveness of a single-degree-of-freedom (SDOF) tuned vibration absorber (TVA) in reducing vibrational amplitudes in fluid-conveying pipes. Using Euler-Bernoulli beam theory, equations of motion for both the pipe and TVA are developed, then discretized and solved via the Galerkin method, incorporating the first four vibrational modes. An analytical expression for natural frequencies under simply supported boundary conditions is also derived to support optimal TVA design. Numerical results are validated and followed by a parametric analysis illustrating that increased fluid velocity amplifies vibrations. However, a well-designed TVA can reduce these amplitudes by up to 80 %. The findings highlight the TVA’s potential as a practical and efficient solution for suppressing fluid-induced vibrations, particularly in applications requiring easy installation and high energy dissipation. This research offers valuable insights for enhancing pipeline system stability through targeted vibration control strategies.</p>

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Semi-analytical investigation into the efficacy of an SDOF tuned vibration absorber for mitigating vibrations in dynamically loaded fluid-conveying pipe

  • 期刊论文

  • 发表日期：

    2026年5月12日

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  • Rongrong Tang,
  • Hongwang Zhao

摘要

This study investigates the effectiveness of a single-degree-of-freedom (SDOF) tuned vibration absorber (TVA) in reducing vibrational amplitudes in fluid-conveying pipes. Using Euler-Bernoulli beam theory, equations of motion for both the pipe and TVA are developed, then discretized and solved via the Galerkin method, incorporating the first four vibrational modes. An analytical expression for natural frequencies under simply supported boundary conditions is also derived to support optimal TVA design. Numerical results are validated and followed by a parametric analysis illustrating that increased fluid velocity amplifies vibrations. However, a well-designed TVA can reduce these amplitudes by up to 80 %. The findings highlight the TVA’s potential as a practical and efficient solution for suppressing fluid-induced vibrations, particularly in applications requiring easy installation and high energy dissipation. This research offers valuable insights for enhancing pipeline system stability through targeted vibration control strategies.