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Optimal Kinematics Design of MacPherson Suspension: Integrated Use of Grey Relational Analysis and Improved Entropy Weight Method
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作者 Qin Shi Fei Zhang +1 位作者 Yikai Chen Zongpin Hu 《Journal of Harbin Institute of Technology(New Series)》 CAS 2022年第2期41-51,共11页
Selecting design variables and determining optimal hard⁃point coordinates are subjective in the traditional multiobjective optimization of geometric design of vehicle suspension,thereby usually resulting in poor overa... Selecting design variables and determining optimal hard⁃point coordinates are subjective in the traditional multiobjective optimization of geometric design of vehicle suspension,thereby usually resulting in poor overall suspension kinematic performance.To eliminate the subjectivity of selection,a method transferring multiobjective optimization function into a single⁃objective one through the integrated use of grey relational analysis(GRA)and improved entropy weight method(IEWM)is proposed.First,a comprehensive evaluation index of sensitivities was formulated to facilitate the objective selection of design variables by using GRA,in which IEWM was used to determine the weight of each subindex.Second,approximate models between the variations of the front wheel alignment parameters and the design variables were developed on the basis of support vector regression(SVR)and the fruit fly optimization algorithm(FOA).Subsequently,to eliminate the subjectivity and improve the computational efficiency of multiobjective optimization(MOO)of hard⁃point coordinates,the MOO functions were transformed into a single⁃objective optimization(SOO)function by using the GRA-IEWM method again.Finally,the SOO problem was solved by the self⁃adaptive differential evolution(jDE)algorithm.Simulation results indicate that the GRA⁃IEWM method outperforms the traditional multiobjective optimization method and the original coordinate scheme remarkably in terms of kinematic performance. 展开更多
关键词 front wheel alignment parameters GRA IEWM self⁃adaptive differential evolution algorithm SVR
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四轮定位仪校准技术 被引量:3
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作者 李矛 马建敏 张乐 《上海计量测试》 2012年第3期33-35,共3页
采用锥销插入组合车架的方法,配置1:1的"拆卸式模拟零位车架"的四轮定位仪校准,从而改善了目前市场上四轮定位仪校准装置无法保证四轮零位角度的准确性,并满足校准规范中的要求,开展了四轮定位仪的量值溯源工作。
关键词 四轮定位仪校准装置 1车架 束角 倾角
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