摘要
针对目前恒功率控制机构结构复杂、成本高、对油液污染敏感等问题,提出了一种新型的轴向柱塞泵恒功率控制机构。介绍了新型恒功率控制机构的原理,对控制机构的静态性能进行了分析。应用ADAMS和AMESim建立恒功率控制机构的仿真实验平台,通过联合仿真对新型恒功率控制机构的动态性能及其影响因素进行仿真研究。研究表明新型恒功率控制机构响应速度快,超调量小,控制压力可以对轴向柱塞泵的功率实现良好的控制;柱塞直径、控制杠杆臂长以及功率控制增益系数对机构的动态性能有重要影响。
Aimed at the problems in existing constant power variable pumps, such as complex structure, high cost and sensitiveness for oil pollution, a new variable displacement mechanism of constant power axial piston pump is proposed. The principle of the new variable displacement mechanism is introduced, and the static performance is analyzed. Simulation platform is built in ADAMS and AMESim, and the co-simulation is run on the platform to ana- lyze the dynamic performance and its influencing factors. The results show that the new variable displacement mechanism has fast response and small overshoot. The pump power can be controlled exactly by the controlling pressure. The piston diameter, lever arm length and power control gain coefficient have obvious effects on the dynamic performance.
出处
《液压与气动》
北大核心
2017年第9期82-86,共5页
Chinese Hydraulics & Pneumatics
基金
山西省自然科学基金(2011011025-3)
山西省研究生优秀创新项目(20123033)
关键词
恒功率控制
联合仿真
动态性能
constant power control, co-simulation, dynamic performance
