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轿车铝合金发动机罩板的轻量化设计与可制造性分析

, PP. 113-120

Keywords: 汽车工程,发动机罩板,有限元法,轻量化,铝合金,刚度,抗凹性

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Abstract:

?为了将铝合金零件的综合力学性能纳入初始设计范畴,提出了一套结构优化设计方法。通过建立某款轿车发动机罩板的有限元模型,选择铝合金材料替换原有钢材料,以罩板综合性能为约束,结合优化设计方法,考虑板材的成形性因素,基于原始钢结构空间布局进行全新设计。结果表明:铝合金罩板在满足结构性能要求和可制造性的前提下可实现减轻质量47.1%,为初始设计阶段的铝合金罩板轻量化设计提供了一套可借鉴的方法。

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