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To rapidly and accurately predict the crashworthiness indicators of thin-walled tubes, a bionic gradient circular multi-cell thin-walled tube axial compression model for predicting the average collision force is established based on the Simplified Super Folding Element (SSFE) theory, and a Long Short-Term Memory (LSTM) network model is built to predict the crashworthiness indicators of the bionic gradient circular multi-cell thin-walled tube under different geometric parameters. The results show that the theoretical prediction error is less than 6% compared with the simulation results, indicating the reliability of the theoretical model. The LSTM network model exhibits an error of less than 2% for Energy Absorption (EA) and Initial Peak Force (IPF) on the validation set, and an error of less than 5% on the test set, demonstrating excellent prediction accuracy and generalization capability.
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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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