摘要
为了提高工程车辆铰接式转向系统的可靠性与稳定性,以转向油缸行程差最小和最大压力最小作为优化目标,采用粒子群算法对转向机构进行了优化。基于ADAMS和AMESim软件建立了包含同轴流量放大全液压转向感觉功能的机-液联合仿真模型,研究了优化后转向系统的动力学特性。仿真结果表明,满载工况下优化使转向油缸最大压力减小了15.5%,油缸最大行程差减小了22.2%,优化效果明显。试验研究了优化后的实际运行效果,分析了转向过程的油缸压力变化和行程差。研究结果对于减小铰接转向系统的压力振摆问题,降低转向能耗、提高转向稳定性和转向路感,从而提高工程机械的转向舒适度具有重要的指导意义。
In this article, in order to improve reliability and stability of the articulated steering system of engineering vehicles, with the minimum stroke difference of the steering cylinder and the minimum maximum pressure as the optimization objectives, the particle swarm algorithm is used to optimize the steering mechanism. Based on the ADAMS and AMESim software, the mechanical-hydraulic co-simulation model including coaxial flow amplification and full-hydraulic steering feel is set up, and the dynamic characteristics of the optimized steering system are explored. The simulation results show that thanks to optimization, the maximum pressure of the steering cylinder under full load conditions reduces by 15.5% and the maximum stroke difference of the cylinder reduces by 22.2%. The actual operation effect after optimization is studied through a series of experiment;the change in cylinder pressure and the stroke difference during the steering process are analyzed. The results have guidance for reducing pressure swing of the articulated steering system, lowering energy consumption, ensuring desirable stability and feel, and thus improving steering comfort of construction machinery.
作者
张小玮
岑跃峰
ZHANG Xiao-wei;CEN Yue-feng(Party Committee Security Department,Yancheng Polytechnic College,Yancheng 224005;School of Information and Electronic Engineering,Zhejiang University of Science&Technology,Hangzhou 310023)
出处
《机械设计》
CSCD
北大核心
2023年第1期94-100,共7页
Journal of Machine Design
基金
浙江省科技计划项目(2017C31038)。
关键词
工程机械
转向系统
粒子群算法
虚拟样机
机-液联合仿真
construction machinery
steering system
particle swarm algorithm
virtual prototype
machine-hydraulic co-simulation
