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In modern aerospace operations, aircraft components are inevitably subjected to complex broadband random vibrations arising from aerodynamic forces and engine-induced excitations (Wang et al., International Journal of Fatigue 151, 2021). Among these, hot-section structures experience pronounced performance degradation and heightened susceptibility to fatigue failure when operating at elevated temperatures (Li et al., International Journal of Mechanical Sciences 302, 2025). The simultaneous influence of thermal and vibrational loads introduces intricate service conditions that accelerate fatigue accumulation, highlighting the critical need for reliable life prediction methods in wide temperature ranges.

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A Novel Spectral Method for Random Vibration Fatigue Life Prediction of Aerospace Structures in Wide Temperature Ranges

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  • 发表日期：

    2026年

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  • Zhiyong Qiu,
  • Huan He

摘要

In modern aerospace operations, aircraft components are inevitably subjected to complex broadband random vibrations arising from aerodynamic forces and engine-induced excitations (Wang et al., International Journal of Fatigue 151, 2021). Among these, hot-section structures experience pronounced performance degradation and heightened susceptibility to fatigue failure when operating at elevated temperatures (Li et al., International Journal of Mechanical Sciences 302, 2025). The simultaneous influence of thermal and vibrational loads introduces intricate service conditions that accelerate fatigue accumulation, highlighting the critical need for reliable life prediction methods in wide temperature ranges.