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基于多学科多目标遗传算法的摩托车车架优化

DOI: 10.3969/j.issn.1674-0696.2015.03.35, PP. 175-178

Keywords: 车辆工程,摩托车架,多学科多目标,遗传算法,振动优化,vehicleengineering,motorcycleframe,multidisciplinaryandmulti-objective,multi-objectivegeneticalgorithm,vibrationoptimization

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Abstract:

:？建立摩托车架有限元模型，计算不同工况下的强度、刚度以及自由模态和约束模态，验证了一维管梁单元模型可代替二维壳单元模型进行仿真计算。采用正交实验设计对优化变量进行灵敏度分析和选择。以自由模态和约束模态频率为优化目标，强度、刚度以及轻量化为约束条件，建立多学科多目标遗传算法的振动优化方案，得到车架整体系统的最优解，提高了车架结构振动特性。

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