高空作业车底盘自主调平系统性能仿真  

Performance Simulation of Autonomous Leveling System for Aerial Work Vehicle Chassis

作　　者：刘志[1] 纪爱敏[1] 张磊[1] 王豪 LIU Zhi;JI Ai-min;ZHANG Lei;WANG Hao(College of Mechanical and Electrical Engineering,Hohai University,Jiangsu Changzhou 213022,China)

机构地区：[1]河海大学机电学院,江苏常州213022

出　　处：《机械设计与制造》2022年第2期188-193,共6页Machinery Design & Manufacture

基　　金：国家自然科学基金项目:重型伸缩吊臂截面形状协同优化设计理论研究(51175146);国家自然科学基金项目:大高度高空作业车臂架的多作动器主动减振控制研究(51805144);常州市高空作业装备与智能技术重点实验室开放基金资助项目(CLAI201805);江苏省研究生科研与实践创新计划项目(SJCX19_0163);中央高校基本科研业务专项基金资助项目(2014-CZB19020036)。

摘　　要：随着高空作业车作业高度的不断增加,为防止高空作业车发生倾覆,在工作前需要对底盘进行相应的液压支撑,才能保证设备的正常运行。现有的底盘调平系统一般只能用于平坦的地面,对于凹凸不平地质松软的地面,只能借助外物将地面垫至近似水平状态,实现相对调平。以高空作业平台底盘调平系统作为研究对象,针对凹凸不平地质松软的地面,借助工程仿真软件AMESim的信号库,模拟不同工况下相应的液压系统的动态特性,并实现对液压系统的闭环控制,优化底盘支腿的调平速度以及精度。同时,借助AMESim对高空作业车液控模型进行仿真,分析复杂工况下液压系统的压力、流量以及位移特性曲线,仿真结果证明调平系统的可行性。With the increasing height of aerial work vehicles,the corresponding hydraulic support of the chassis is required to prevent the overhead work car from tipping over and ensure the normal operation of the equipment. The existing chassis leveling system is generally used for flat ground. When the ground is uneven and geologically soft,it must be padded to an approximate level by means of foreign objects to carry on relative leveling. Taking the aerial platform platform leveling system as the research object,this paper uses the engineering simulation software AMESim’s signal library to simulate the dynamic characteristics of the corresponding hydraulic system under different working conditions. And then this paper realizes closed-loop control of the hydraulic system and optimize the leveling speed and accuracy of the chassis legs. At the same time,AMESim is used to simulate the hydraulic control model of the aerial work vehicle to get the pressure,flow and displacement characteristics of the hydraulic system under complex conditions are analyzed. Finally the simulation results prove the feasibility of the leveling system.

关 键 词：高空作业车 液压系统 自主调平 AMESIM 仿真 

分 类 号：TH16[机械工程—机械制造及自动化]