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Fatigue load spectrum processing is a key part of fatigue durability analysis. In terms of the acquisition of load spectrum, the advantages and disadvantages of the virtual pavement method and the load iterative method are reviewed and analyzed. In terms of load spectrum processing, 7 load spectrum processing methods, including the increased magnitude method, the peak-to-valley extraction method, the increased frequency method, and the time-domain correlation editing method, are reviewed. The analysis results show that the load spectrum features and information are extracted based on the time domain, frequency domain or a combination of the two, and the load spectrum is simplified based on the fatigue life damage theory, which can further speed up the fatigue analysis process and shorten the research time. In terms of fatigue analysis methods, the advantages and disadvantages of different fatigue analysis methods are analyzed, and the results show that the fatigue prediction results with higher accuracy can be obtained by selecting appropriate fatigue analysis methods at different stages of the fatigue analysis process, and the fatigue life of vehicle target parts can be obtained more efficiently. In terms of fatigue durability bench test verification, in view of the problem of slow iterative convergence in the iterative process of bench test, it is proposed that the transfer function can be learned by neural network in the future, in order to obtain better iterative effect, more accurate driving signal, and improve the efficiency of fatigue analysis.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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