挖掘机动臂液压冲击力优化控制仿真  

Hydraulic Impact Force Optimization Control Simulation of Excavator Boom

作　　者：廖晓文[1,2,3] 吴运新[1,2,3] 龚海[1,2,3] 谢琴[1,2,3] 

机构地区：[1]中南大学高性能复杂制造国家重点实验室,湖南长沙410083 [2]中南大学机电工程学院,湖南长沙410083 [3]中南大学有色金属先进结构材料与制造协同创新中心,湖南长沙410083

出　　处：《计算机仿真》2016年第6期189-192,265,共5页Computer Simulation

基　　金：国家科技支撑计划(863计划)项目(2015BAF07B03)

摘　　要：在挖掘机动臂液压冲击力优化控制研究中,由于液压挖掘机在动臂启动、停止和换向时液压冲击大,并产生振动和噪音,严重影响了挖掘机的使用寿命和操作者的舒适度。针对上述问题,通过在油路上增加蓄能器,来降低挖掘机动臂的液压冲击。利用Adams和AMEsim的挖掘机动臂和回转系统联合仿真平台,对蓄能器充气压力P0和充气容积V0参数进行优化,最终选为10Mpa和2.8L。结果表明,挖掘机动臂无杆腔冲击压力从最高处36Mpa降低到22Mpa,压力冲击约降低了54%,液压冲击下降显著,并且对压力响应的影响也较小,为系统优化提供了科学依据。In the research of hydraulic impact force optimization control of excavator boom, the hydraulic pressure is big, and the vibration and noise caused by the hydraulic excavator are used to start, stop and reverse. In view of the above problems, the hydraulic impact of the boom is reduced by increasing the accumulator in the oil circuit. Based on Adams and AMEsim, the joint simulation platform of excavator boom and rotary system is used to optimize the parameters of P0 and V0, the final selection for 10Mpa and 2. 8L. The results show that, the excavator boom no rod chamber shock pressure is reduced to 22Mpa from the highest 36Mpa and shock pressure is reduced approximate- ly 54%, the hydraulic impact decreases significantly and the influence on pressure response is also smaller.

关 键 词：液压挖掘机 联合仿真 液压冲击 蓄能器 

分 类 号：TH391.9[机械工程—机械制造及自动化]