In this paper, a design strategy to keep a pipe away from resonance by adjusting retaining clips is presented. The pipe natural frequency is within the band of vibration frequencies generated by mechanical operation, which can cause the resonance phenomenon. The resonance of pipes could bring serious disaster to the mechanical operation. Therefore, the band of vibration frequencies generated by the mechanical operation is defined as the preserved frequency band (PFB). The pipe in engineering has been simplified to a multispan pipe conveying fluid. An integral pipe model of a multispan pipe conveying fluid is established by simplifying the retaining clips. The natural frequencies of a pipe with clips are obtained. The resonance range and safety range of pipe length are defined as the natural frequencies inside and outside the PFB, respectively. The absolute safety length and the absolute resonance length with respect to clip number are derived. Moreover, the influence of the clip stiffness and location on the safety range is determined. The results show that the safety range is significantly changed by adjusting the vertical stiffness, torsional stiffness, and location of the clips. Based on the results, a pipe design strategy is proposed to stay away from resonance and make for a smaller number of clips. Subsequently, a design for an aircraft pipe is carried out as an example. As a result of the design, the natural frequencies of the aircraft pipe are kept away from the PFB. In summary, a design strategy is obtained to avoid resonance for pipes by adjusting the clip stiffness and/or location.

本文提出了一种通过调整固定夹来使管道远离共振的设计策略。管道固有频率处于机械运转产生的振动频率范围内，会引起共振现象。管道的共振会给机械运行带来严重的灾难。因此，机械操作产生的振动频率带被定义为保留频带（PFB）。工程上的管道已简化为输送流体的跨度管道。通过简化固定夹，建立了输送流体的多跨管道的整体管道模型。获得带有夹子的管道的固有频率。管道长度的共振范围和安全范围分别定义为PFB内部和外部的固有频率。导出相对于夹子数量的绝对安全长度和绝对共振长度。此外，还确定了夹子刚度和位置对安全范围的影响。结果表明，通过调整夹子的垂直刚度、扭转刚度和位置，可以显着改变安全范围。根据结果​​，提出了一种管道设计策略，以避免共振并减少夹子的数量。随后，以飞机管道为例进行了设计。由于这种设计，飞机管道的固有频率远离了 PFB。总之，获得了一种通过调整夹子刚度和/或位置来避免管道共振的设计策略。