基于混沌改进算法的线路连续换轨装置结构优化研究  

STRUCTURAL OPTIMIZATION FOR CONTINUOUS CHANGE RAIL LINE BASED ON IMPROVED ALGORITHMS CHAOS

作　　者：吴元科[1] 刘放[1] 刘超群[1] 李文涛[1] 孙靖坤[1] 

机构地区：[1]西南交通大学机械工程学院,成都610031

出　　处：《机械强度》2016年第1期87-93,共7页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(51175442);中央高校基本科研业务费专项资金(2010ZT03)资助~~

摘　　要：总结了换轨车换轨工作的六种典型工况。采用了三种方法计算换轨车换轨工作载荷并且建立了伸缩式换轨车换轨工作装置的理论模型。采用加速因子和惯性权重改进了的粒子群算法,并在其中加入了混沌算法,针对于伸缩臂六边形截面的5个主要参数进行优化。优化结果表明;伸缩臂质量降低了29.6%,整机质心位置下降,配以伸缩功能的配重也会较小,实现了换轨车前后转向架轴重的平衡,提高了换轨车整机稳定性。Summed up six typical working conditions of the rail track replacement device. Its working load is calculated by three kinds of method. And the theoretical model of telescopic rail track replacement car for work equipment is established. Accelerating factor and inertia weight Improved PSO,and adding the chaos algorithm optimize five main parameters of hexagonal cross-section telescopic boom. The optimization results show,telescopic quality has reduced by 29.6% ;overall centroid position has down; counterweight with telescopic functionis smaller; the balance of front and rear axle bogie track replacement has achieved;In other railcars improved machine stability.

关 键 词：典型工况 理论模型 混沌算法 参数优化 

分 类 号：TH213.6[机械工程—机械制造及自动化]