Full
Outline
Traditional CAE modeling of door structures typically employs uniform wall thickness properties, failing to account for thickness variations after sheet metal forming. Therefore, it is of practical significance to develop a structural CAE model that incorporates the non-uniform wall thickness resulting from the forming process of door inner and outer panels. This paper investigates a method for constructing a structural CAE model of aluminum alloy door panels with non-uniform thickness based on forming analysis. In this model, the wall thickness properties of the inner and outer panels are assigned the non-uniform thickness values obtained from formability CAE analysis. A comparative analysis is conducted between the calculated stiffness and experimental stiffness of the aluminum alloy door panels using both uniform and non-uniform wall thickness CAE models. The results show that, compared to the uniform thickness CAE model, the structural CAE model based on forming-induced non-uniform thickness significantly improves the accuracy of door stiffness predictions. Specifically, the accuracy of torsional stiffness calculations at the upper corner point increases by 10.6%, at the lower corner point by 6.3%, at the outer waistline by 5.2%, at the inner waistline by 5.5%, at the upper mounting point of the window regulator by 7.7%, and at the lower mounting point of the window regulator by 7.5%.
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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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