摘要
标准差分(SDE)算法具有算法简单、控制参数少、易于实现等优点,但容易发生早熟收敛。针对此缺点,提出一种改进的差分进化(IDE)算法。建立了铰链四杆函数发生机构近似运动综合的无约束优化模型,并应用IDE算法求解该优化问题。数值实例表明,IDE算法可以较好地克服早熟收敛问题,且能快速求出铰链四杆函数发生机构近似运动综合的优化解。
The standard differential evolution （SDE） algorithm has the advantages of simplicity, few control parameters required, and easily be used, but has the disadvantage of premature convergence. The improved DE （IDE） algorithm is proposed to overcome the demerits of the SDE algorithm. An unconstrained opti- mization model is presented to approximately synthesize function generators of pin-jointed 4-bar linkages. And then, the IDE algo- rithm is utilized to solve this optima/problem for function synthesis. A numerical result shows that the IDE algorithm can overcome the problem of premature convergence, and quickly approach to optimal solutions for approximate kinematic synthesis of function generators.
出处
《机械设计》
CSCD
北大核心
2010年第3期5-9,共5页
Journal of Machine Design
基金
四川省应用基础研究计划资助项目(2008JY0163)
关键词
铰链四杆机构
函数发生
优化综合
差分进化算法
pin-jointed 4-bar linkage
function generating
optimal synthesis
differential evolution algorithm
