Mechanical-Hydraulic Co-Simulation of Full Hydraulic Articulated Steering System  

作　　者：Jiayi Wang Xinhui Liu Jinshi Chen Tongjian Wang Xin Wang 

机构地区：[1]School of Mechanical and Aerospace Engineering,Jilin University,Changchun,130022,China

出　　处：《Computer Systems Science & Engineering》2021年第6期381-398,共18页计算机系统科学与工程（英文）

基　　金：This work was supported by the National Key Research and Development Program of China,No.2018YFB2000900。

摘　　要：With the development and improvement of the hydraulic steering system,the articulated steering system became the research focus of numerous domestic and foreign scholars.The full hydraulic steering system with a compact structure and ease of operation,is widely used in articulated steering mode.Furthermore,its performance can directly impact the steering sensitivity and stability.This paper studies the working principle and actual structure of the priority valve and the steering control valve,which are very important.By setting up a mathematic model,the system’s load-sensing characteristics and the impact of steering control valve bypass throttle damping on steering stability can be analyzed.The Hydraulic Components Design(HCD)model was established for the hydraulic part of this system.It is proved that the model can reflect the system’s actual properties by comparing simulation and experimental results.The dynamic model is based on its actual prototype parameters by taking the tire and ground forces into account.The steering process’s dynamic characteristics are co-simulated in the 1D+3D system model by combining AMESim and Virtual.Lab Motion.The simulation results show that the system’s load-sensing characteristics ensure the sensitivity of the steering operation,and the bypass throttle damping has significantly improved the operation stability and lowered down the cylinder pressure fluctuations.This can improve the system performance by appropriate optimization.

关 键 词：Articulated vehicle full hydraulic steering system load-sensing STEERING 

分 类 号：U46[机械工程—车辆工程]