Analysis and Multi-island Genetic Algorithm Optimization of the Steering Mechanism Based on Finite Rotational Tensor
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摘要: 结合有限转动张量、敏度分析和多岛遗传算法,对三轴类菱形车转向机构进行优化设计。基于有限转动张量,建立三轴类菱形车转向机构的运动学数值理论模型,并对其相关硬点作敏度分析。以敏度分析得到的结果为优化变量,以三轴类菱形车的前后轮转向同步性表征值最小为优化目标,利用多岛遗传算法对其进行优化。优化后目标值从初始的7.789°降到了1.210°,降低了三轴类菱形车在转向时的轮胎磨损。Abstract: Combining finite rotational tensor(FRT),sensitivity analysis and multi-island genetic algorithm(MI-GA),the paper aims at the design and optimization of the steering mechanism of a three-axle similar rhombic vehi-cle. Then it establishes its kinematics numerical model based on FRT,and made sensitivity analysis of its relatedhard points. With sensitivity analysis results as optimization variables,the minimum characterization value of thefront and rear wheels' steering synchronization as optimization target,it uses the MIGA as the tool to optimize thetarget. After optimization, the target value drops from the initial 7. 789�to 1. 210� thus tire wear is reduced. Theoptimization results show that the method can be used to design the steering mechanism of the vehicle.
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[1] 査云飞. 类菱形车转向系统研究与分析[D]. 长沙:湖南大学,2010 [2] 郑军. 新概念车舒适与操纵稳定性研究[D]. 长沙:湖南大学,2001 [3] 洪嘉振. 计算多体系统动力学[M]. 北京:高等教育出版社,1999 [4] Chen H,Ooka R,Kato S. Study on optimum design method forpleasant outdoor thermal eviroment using genetic algorithms andcoupled simulation of convection,radiation and conduction[J].Building and Environment,2003,43:18～31 [5] 石秀华,孟祥众,杜向党等. 基于多岛遗传算法的振动控制传感器优化配置[J]. 振动、 测试与诊断,2008,28(1):62～65 [6] 玄光男,程润伟著,于歆杰,周根贵译. 遗传算法与工程优化[M].北京:清华大学出版社,2003 [7] 丁飞,韩旭,刘桂萍等. 悬架导向机构硬点灵敏度分析及多目标优化设计[J]. 汽车工程,2010,32(2):137～142 [8] 莫旭辉,钟志华,韩旭等. 基于多目标优化的菱形车双横臂悬架运动学分析[J]. 中国机械工程,2009,20(3):374～377 -
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