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October 17, 2025Fatigue of Aircraft StructuresOpen Access

Random Vibration Fatigue Life Analysis of Aeroengine Bolts Using the Frequency-Domain Method

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Authors

LTLongxiang TianJWJun WangCZChaofeng Zhang

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Overview

This analysis reveals fatigue life under random vibration in aeroengine bolts, suggesting design improvements.

Key Points

  • Bolts experience significant fatigue life reduction due to complex stress states from vibrations and loads.
  • Approximately 4.44 hours of fatigue life is documented under the highest RMS stress conditions for Y-direction bolts.
  • A finite element model was used to analyze stress power spectral density and evaluate fatigue life accurately.
  • The proposed frequency-domain method offers a practical approach for optimizing bolt designs in aeroengine applications.

Cite This Study

Tian et al. (2024) studied this question.

synapsesocial.com/papers/68f19f24de32064e504de088https://doi.org/10.2478/fas-2024-0010
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