| Citation: | SHI Yan, SUN Zhonghan, LI Wengang, et al. Analysis on service life of metal rubber clamp for natural vibration characteristics of pipe systems[J]. Journal of Aerospace Power, 2025, 40（12）：20240281 doi: 10.13224/j.cnki.jasp.20240281
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A finite element model of the clamp-pipe system was established based on the spring and pipe elements, and validated through the test results of natural frequency and frequency response. Furthermore, combined with the actual engine installed clamp samples, the effects of clamp service life, tightening torque and installation deviation on the natural vibration characteristics of the pipe were investigated. The natural frequency of the pipe decreased as the service time of the clamp increased, with the degradation rate being fastest during the initial service stage but stabilizing after
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