滑移装载机行走液压系统功率特性分析  

Analysis of power characteristics of traveling hydraulic system of skid-steer loader

作　　者：陈晋市 霍东阳[1] 刘思远 魏星 张志伟[1] CHEN Jinshi;HUO Dongyang;LIU Siyuan;WEI Xing;ZHANG Zhiwei(School of Mechanical and Aerospace Engineering,Jilin University,Changchun 130022,China;State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China;Vocational Foundation Department,Changchun Vocational Institute of Technology,Changchun 130033,China)

机构地区：[1]吉林大学机械与航空航天工程学院,吉林长春130022 [2]吉林大学汽车仿真与控制国家重点实验室,吉林长春130022 [3]长春职业技术学院职业基础部,吉林长春130033

出　　处：《中南大学学报（自然科学版）》2020年第9期2451-2459,共9页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51705189)。

摘　　要：为提高滑移装载机发动机与液压系统动态功率匹配的合理性,研究整车行走液压系统的功率特性,以某型号滑移装载机为例,分析其行走液压系统原理,建立整车的功率分析理论模型;运用AMESim软件与Virtual Lab Motion多体动力学软件建立整车的多物理场耦合仿真模型,分析典型工况下滑移装载机行走液压系统的功率特性,并通过实验验证仿真模型的准确性。研究结果表明:随着转向半径的减小,滑移装载机行走系统输出功率逐渐增大;滑移装载机直线行驶时,行走系统消耗功率较小;单边转向时,转向内侧车轮会产生寄生功率;双边转向时,行走系统消耗功率接近发动机额定功率。To improve the rationality of dynamic power matching between skid-steer loader engine and hydraulic system,the power characteristics of the traveling hydraulic system of skid-steer loader were studied,and taking a certain model of skid-steer loader as an example,the theoretical model of power characteristics was established.AMESim software and Virtual Lab Motion multi-body dynamics software were used to establish the corresponding joint simulation model,and the power characteristics of the traveling hydraulic system of the skidsteer loader under typical working conditions were simulated and analyzed.The accuracy of the simulation model was verified through experiments.The results show that with the decrease of steering radius,the output power of the traveling system of skid-steer loader increases gradually;the traveling system consumes less power when skid-steer loader runs straight;there is parasitic power in the inner steering wheel when the vehicle is of unilateral steering;the power consumption of the traveling system is larger when the vehicle is of bilateral steering.

关 键 词：滑移装载机 功率特性 行走系统 联合仿真 实验验证 

分 类 号：TH243[机械工程—机械制造及自动化]