基于遗传算法的变幅液压系统动态特性优化

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英文篇名：Optimization of Dynamic Characteristics for Luffing Hydraulic System Based on Genetic Algorithm 作者：王志红 ; 卢梦成 ; 尹冬冬 ; 秦可 英文作者：WANG Zhihong;LU Mengcheng;YIN Dongdong;QIN Ke;Hubei Province Key Laboratory of Modern Automotive Technology, Wuhan University of Technology;Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan University of Technology; 关键词：变幅液压系统 ; 动态特性 ; 遗传算法 ; 优化 英文关键词：luffing hydraulic system;;dynamic characteristics;;genetic algorithm;;optimization 中文刊名：ZZKX 英文刊名：Digital Manufacture Science 机构：武汉理工大学现代汽车零部件技术湖北省重点实验室;武汉理工大学汽车零部件技术湖北省协同创新中心; 出版日期：2019-03-15 出版单位：数字制造科学 年：2019 期：v.17;No.72 语种：中文; 页：ZZKX201901013 页数：5 CN：01 ISSN：42-1693/TP 分类号：63-67

摘要

以高空作业车变幅液压系统为研究对象,介绍了变幅液压系统的工作原理以及平衡阀的结构和功能特点,基于AMESim软件建立了变幅液压系统的仿真模型,通过批运行分析了泵转速、系统压力、平衡阀主阀芯弹簧刚度以及控制口阻尼孔直径对变幅液压系统动态特性的影响。以变幅液压缸活塞杆的加速度均方根值为优化目标,基于遗传算法对影响变幅液压系统动态特性的参数进行了优化,得到了变幅液压系统的最优参数。优化结果表明,变幅液压缸活塞杆的加速度均方根值减少了43.5%,优化效果明显。
        This paper introduces the structural features and functions of the balancing valve of the luffing hydraulic system. The model of the luffing hydraulic system is established in AMESim. The influences of the pump speed, system pressure, main valve spring of balance valve and damping diameter of control valve on the dynamic characteristics of the luffing hydraulic system are analyzed. The root mean square of the acceleration of the piston rod in luffing cylinder is optimized based on genetic algorithm. The optimal parameters of the luffing hydraulic system is obtained. The result of optimum shows that the root mean square of acceleration of piston rod inluffing cylinder is reduced by 43.5%, thus achieving a distinct optimization.

引文

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