直驱式电液控制系统的多目标优化设计  

The Design of Directive-driven Electro-actuator Control System Based on Multi-objective Optimization

作　　者：李小虎[1] 柳松玮 施虎[1] 王孙安[1] 

机构地区：[1]西安交通大学机械工程学院,陕西西安710049

出　　处：《液压与气动》2015年第6期24-28,34,共6页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51305328);国家支撑计划项目(2014BAF02B00)

摘　　要：针对直驱式电液作动控制系统需具备良好的静态、动态特性,根据系统的工作原理确定其数学模型,并对其进行定性的分析。结果表明直驱式电液作动控制系统的性能目标相互耦合,因此,在系统结构设计时需要综合考虑。提出基于Pareto多目标的优化算法,对该控制系统的多个性能指标进行多目标优化设计,所得结果可为设计该系统提供参考。The paper describes the principle of the EHA at first.On the basis of it,a detail mathematical plant model is constructed.Favorable rigidity and dynamic characteristics of the system,which couple up each other,are compromised in the course of design.A multi-objective particle swarm optimization algorithm,which makes use of optimization of this system design,is designed based on the Pareto theory.The no-inferior set providse the best site of the population,which guides the particles convergence fastly.Simultaneity for the sake of maintaining the diversity of the population,the dynamic uniformity distributing of objective function fitness,which can improve the diversity of the population,is adjusted in thisstudy.The optimization results provide instructional purposes for the system design.

关 键 词：电动静液作动器 多目标优化 粒子群优化 均匀分布 

分 类 号：TH137[机械工程—机械制造及自动化] TP271.4[自动化与计算机技术—检测技术与自动化装置]