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Research of the crankshaft high cycle bending fatigue experiment design method based on the modified unscented Kalman filtering algorithm and the SAFL approach

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  • Shuyang Rui
  • Dongdong Jiang
  • Songsong Sun
  • Xiaolin Gong

Abstract

In modern engineering application, enough high cycle bending fatigue strength is the necessary factor to provide the basic safety security for the application of the crankshaft in automobile engines (both diesel and gasoline types). At present, this parameter is usually obtained through the standard bending fatigue experiment process, which is time consuming and expensive. In this paper, a new accelerated crankshaft bending fatigue experiment was proposed step by step. First the loading procedure was quickened through the prediction of the residual fatigue life based on the UKF (unscented Kalman filtering algorithm). Then the accuracy of the predictions was improved based on the modified sampling range and the theory of fracture mechanics. Finally the statistical analysis method of the fatigue limit load was performed based on the above predictions. The main conclusion of this paper is that the proposed accelerated bending fatigue experiment can save more than 30% of the bending fatigue experiment period and provide nearly the same fatigue limit load analysis result. In addition, compared with the particle filtering algorithm method, the modified UKF can provide much higher accuracy in predicting the residual bending fatigue life of the crankshaft, which makes this method more superior to be applied in actual engineering.

Suggested Citation

  • Shuyang Rui & Dongdong Jiang & Songsong Sun & Xiaolin Gong, 2023. "Research of the crankshaft high cycle bending fatigue experiment design method based on the modified unscented Kalman filtering algorithm and the SAFL approach," PLOS ONE, Public Library of Science, vol. 18(9), pages 1-17, September.
    • Handle: RePEc:plo:pone00:0291135
    DOI: 10.1371/journal.pone.0291135
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    References listed on IDEAS

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    1. Songsong Sun & Xiaoli Yu & Zhentao Liu & Xiaoping Chen, 2016. "Component HCF Research Based on the Theory of Critical Distance and a Relative Stress Gradient Modification," PLOS ONE, Public Library of Science, vol. 11(12), pages 1-17, December.
    2. Gong, Dongliang & Gao, Ying & Kou, Yalin & Wang, Yurang, 2022. "State of health estimation for lithium-ion battery based on energy features," Energy, Elsevier, vol. 257(C).
    3. SongSong Sun, 2020. "A new stress field intensity model and its application in component high cycle fatigue research," PLOS ONE, Public Library of Science, vol. 15(7), pages 1-20, July.
    4. Yu Hou & Xiaomei Xu, 2022. "High-speed lateral stability and trajectory tracking performance for a tractor-semitrailer with active trailer steering," PLOS ONE, Public Library of Science, vol. 17(11), pages 1-17, November.
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