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基于ISIGHT的电动汽车扭杆梁悬架振动传递特性优化

, PP. 1381-1387

Keywords: 车辆工程,电动汽车,高频悬架模型,多目标优化

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Abstract:

针对车用驱动电机转矩波动引起悬架系统振动进而造成车内噪声的问题,提出通过改善悬架纵向和垂向振动传递特性来实现减振的优化方法。通过扭杆梁柔性化、高频衬套模型的ADAMS实现等措施保证悬架弹性元件的精确描述来建立适用于高频仿真的悬架模型,并基于此模型进行振动传递特性分析,最后基于ISIGHT集成多学科软件实现多目标全局优化。优化结果表明:在略微减小垂向振动传递函数加权面积的基础上使纵向振动传递函数加权面积减小了17.23%,且在目标频段内振动传递优化效果显著。

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