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Optimized Design of Aluminum Cross Car Beam (CCB) Based in Modal Strain Energy Analysis

机译:基于模态应变能分析的铝制横梁优化设计

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An aluminum cross car beam (CCB) for new energy is designed with CATIA. And then, modal analysis is taken by using simulation software-NASTRAN. As nature frequencies can't meet the design target, optimization is performed according to the modal strain energy contour. After structure is strengthen, the first vertical nature frequency of the aluminum CCB (mounted on trimmed car body, with closures and interiors) reaches 35.4Hz.While the first lateral nature frequency reaches 36.5 Hz. Besides, comparing to steel CCB, the weight of the aluminum CCB reduces by4.4 kilogram.
机译:CATIA设计了用于新能源的铝制横梁(CCB)。然后,使用仿真软件-NASTRAN进行模态分析。由于自然频率不能满足设计目标,因此根据模态应变能轮廓进行优化。结构加固后,铝制CCB(安装在修整的车体上,带有封闭件和内饰的)的第一个垂直自然频率达到35.4Hz,而第一个横向自然频率则达到36.5Hz。此外,与钢制CCB相比,铝制CCB的重量减少了4.4公斤。

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