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

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

Open Access
|Oct 2025

Figures & Tables

Figure 1.

Frequency-domain method process for vibration fatigue analysis.
Frequency-domain method process for vibration fatigue analysis.

Figure 2.

Schematic diagram of engine fuel accessory structure.
Schematic diagram of engine fuel accessory structure.

Figure 3.

Distribution and assembly diagram of bolted connections.
Distribution and assembly diagram of bolted connections.

Figure 4.

Schematic diagram of bolt connection details.
Schematic diagram of bolt connection details.

Figure 5.

Vibration excitation spectrum
Vibration excitation spectrum

Figure 6.

RMS stress cloud maps of connecting bolts: (a) X-direction, (b) Y-direction, (c) Z-direction.
RMS stress cloud maps of connecting bolts: (a) X-direction, (b) Y-direction, (c) Z-direction.

Figure 7.

Stress PSD curve of dangerous points in the X direction.
Stress PSD curve of dangerous points in the X direction.

Figure 8.

Stress PSD curve of dangerous points in the Y direction.
Stress PSD curve of dangerous points in the Y direction.

Figure 9.

Stress PSD curve of dangerous points in the Z direction.
Stress PSD curve of dangerous points in the Z direction.

Figure 10.

S–N curve of TC4 material.
S–N curve of TC4 material.

Figure 11.

Fatigue life results of connecting bolts.
Fatigue life results of connecting bolts.
DOI: https://doi.org/10.2478/fas-2024-0010 | Journal eISSN: 2300-7591 | Journal ISSN: 2081-7738
Language: English
Page range: 147 - 160
Published on: Oct 15, 2025
Published by: ŁUKASIEWICZ RESEARCH NETWORK – INSTITUTE OF AVIATION
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2025 Lilin Tian, Jun Wang, Chaofeng Zhang, Yuchao Guo, Liang Chang, published by ŁUKASIEWICZ RESEARCH NETWORK – INSTITUTE OF AVIATION
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.