PU Bowen,SUN Xingyue,ZHOU Tianguo,et al. Thermomechanical fatigue life prediction of cast iron materials for cylinder head based on self-supervision adversarial training algorithm[J]. Journal of Mechanical Strength,2025,47(9):241-249.
PU Bowen,SUN Xingyue,ZHOU Tianguo,et al. Thermomechanical fatigue life prediction of cast iron materials for cylinder head based on self-supervision adversarial training algorithm[J]. Journal of Mechanical Strength,2025,47(9):241-249. DOI: DOI:10.16579/j.issn.1001.9669.2025.09.024.
Thermomechanical fatigue life prediction of cast iron materials for cylinder head based on self-supervision adversarial training algorithm
Taking cast iron material of cylinder head as the research object
a series of thermo-mechanical fatigue experiments under different temperature ranges were conducted through bulk sampling. The results show that the fatigue test of cast iron materials exhibits three stages: cyclic softening
cyclic stability and rapid failure. Additionally
the fatigue life of materials under inverse phase loading is significantly shorter than that under positive phase loading. Six typical supervised learning models
including artificial neural networks (ANN) and random forest (RF)
were used to predict the fatigue life of the experimental data. However
the results indicate that these models failed to learn the fatigue life distribution trend of the materials. For this problem
the prediction of the thermal mechanical fatigue life of cast iron materials for cylinder heads was achieved by using the self-supervised algorithm based on the generative adversarial network (GAN)
and it showed a good prediction effect under the condition of small samples. This research has strong guiding significance and reference value for cylinder head design and fatigue analysis.
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