摘要
根据杆长约束条件,给出了铰链四杆刚体导引机构近似运动综合的无约束优化模型,并应用粒子群算法(PSO)求解此优化问题。针对PSO直接在整个解空间内寻优时很难求得全部解的缺点,提出了求刚体导引铰链四杆机构近似解的混合智能算法——区间逃逸粒子群算法(EPSObIS)。数值实例表明,EPSObIS能求出近似满足刚体导引要求的铰链四杆机构。
The length of the bars is regarded as the restrict condition to obtain the unconstrained optimization model for rigid-body guidance approximate kinematc synthesis of hinged 4-bar linkages and this optimal problem is solved by means of the particle swarm optimization (PSO) algorithm. All approximate solutions of the mechanism is difficultly obtained,using directly the PSO algorithm to solve this problem in its whole space of solutions. Aimed at this weakness,the improved PSO algorithm,the Escape PSO Based on the interval search (EPSObIS),is presented to make the optimal problem for rigid-body guidance synthesis of hinged 4-bar linkages. Numerical examples show that the EPSObIS can solve to hinged 4-bar linkages to satisfy approximately the requirement of rigid-body guidancing.
出处
《机械传动》
CSCD
北大核心
2008年第6期36-39,共4页
Journal of Mechanical Transmission
基金
泸州职业技术学院科研基金资助项目(K-0502)
四川省高等教育教学改革工程人才培养质量和教学改革项目(06-511-254)
<机械制图与设计>四川省精品课程建设项目(08-359-174)
<机械制图与设计>泸州职业技术学院精品课程建设项目(KC-200702)
关键词
铰链四杆机构
刚体导引
近似综合
粒子群算法
逃逸速度
区间搜索
Hinged 4-bar linkage Rigid-body guidance Approximate synthesis Particle swarm optimization Escape velocity Interval search
