铰接式装载机倾翻预警方法  

Method of rollover pre-warning for articulated loader

作　　者：贾拓 赵丁选 崔玉鑫[1] JIA Tuo;ZHAO Ding-xuan;CUI Yu-xin(College of Mechanical Science and Engineering,Jilin University,Changchun 130022,China;College of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]吉林大学机械科学与工程学院,长春130022 [2]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《吉林大学学报（工学版）》2018年第6期1762-1769,共8页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家重点研发计划项目(2016YFC0802900)

摘　　要：首先,测量装载机的转向角、动臂升角、铲斗转角及动臂油缸压强,采用一套多体动力学算法,计算出稳定区域图,该图是一张以极坐标表示装载机沿不同方向倾翻角度的封闭图形。然后,用陀螺仪测量装载机所处的坡度及其相对坡度的朝向角,并在稳定区域图中画出其稳定状态点,通过比较该状态点是否接近稳定区域图的边界来实现预警。最后,通过模型试验验证了该稳定区域图计算的准确性及预警方案的可行性。A rollover prewarning method for articulate loader is proposed.Firstly,the steering angle, boom lift angle,bucket rotation angle and boom cylinder pressure are measured.Second,with these information and using multi-body dynamics algorithm,the stability diagram is calculated,which is an enclosed plot in polar coordinates to show the rollover angles in different directions.Third,according to the slope angle and the relative orientation of the loader toward slop measured by gyroscope,the state point of loader stability is determined in the stability diagram.Finally,early warning is achieved by judging if the state point is close to the boundary of the stability diagram.The accuracy of stability diagram and the feasibility of early warning method are verified by the model experiments.

关 键 词：机械工程 轮式装载机 稳定性 倾翻预警 多体动力学 

分 类 号：TH113[机械工程—机械设计及理论]