| 轮式车辆转向机构的遗传算法优化设计 |
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| 引用本文： | 薄瑞峰,李瑞琴,刘昕明.轮式车辆转向机构的遗传算法优化设计[J].中北大学学报,2009,30(2). |
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| 作者姓名： | 薄瑞峰 李瑞琴 刘昕明 |
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| 作者单位： | 薄瑞峰,李瑞琴,BO Rui-feng,LI Rui-qin(中北大学,山西省先进制造技术重点实验室,山西太原030051);刘昕明,LIU Xin-ming(航天长征火箭技术股份有限公司研究院,北京,100070)
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| 基金项目： | 山西省青年科技研究基金，山西省先进制造技术重点实验室资助项目，中北大学自然科学基金 |
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| 摘 要： | 在对车辆前轮转向机构进行运动分析的基础上,给出了参数优化设计的数学模型,提出了一种改进的遗传算法,并利用Matlab遗传算法工具箱对转向机构进行了优化设计,得到了满意的设计参数.讨论了遗传算法的一些关键技术:如改进的二进制编码方法.基于惩罚项的适应度计算,遗传算子的构造,以及遗传终止法则等.计算结果表明:与复合形法相比,遗传算法使目标函数值减少了6.6%,取得了较好的优化效果.从而更有利于减小转向车轮的滑移量和轮胎的磨损量,同时也验证了遗传算法解决多约束、多变量类型优化问题的可行性和优越性.
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| 关 键 词： | 遗传算法 转向机构 优化设计 轮式车辆 |
Genetic Algorithm Based Optimization Design of Steering Mechanism in Wheeled Vehicles |
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| BO Rui-feng,LI Rui-qin,LIU Xin-ming.Genetic Algorithm Based Optimization Design of Steering Mechanism in Wheeled Vehicles[J].Journal of North University of China,2009,30(2). |
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| Authors: | BO Rui-feng LI Rui-qin LIU Xin-ming |
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| Affiliation: | 1.Key Laboratory for AMT of Shanxi;North University of China;Taiyuan 030051;China;2.Research Institute;Long March Launch Vehicle Technology Co.;Ltd.;Beijing 100070;China |
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| Abstract: | On the basis of kinematic analysis for steering mechanism in a certain wheeled vehicle,a mathematic model of optimal design is provided.An improved genetic algorithm(GA) is adopted to implement the conceptual optimization design and optimal parameters satisfying design requirement are obtained using the GA toolbox of Matlab.Some critical problems on GA are discussed in this research,such as an improved binary encoding method,calculation of fitness based on penalty function,construction of genetic operators,... |
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| Keywords: | genetic algorithm steering mechanism optimization design wheeled vehicles |
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