### Prediction Method of Performance of Intelligent Hydraulic Components Based on Lubrication Mechanism

LIU Siyuan1,2;WANG Guangda1,2;SUN Hongmei3;LIU Jianxun4;JIANG Wanlu1,2

1. 1.Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Qinhuangdao，Hebei，066004
2.Key Laboratory of Advanced Forging & Stamping Technology and Science(Yanshan University)，Ministry of Education of China,Qinhuangdao，Hebei，066004
3.Beijing Vocational College of Electronic Science and Technology,Beijing，100000
4.Qinhuangdao GREEN Environmental Engineering Co.,Ltd.,Qinhuangdao，Hebei，066004
• Online:2020-04-25 Published:2020-06-11

### 基于润滑机理的智能液压元件本体性能预测方法

1. 1.燕山大学河北省重型机械流体动力传输与控制重点试验室，秦皇岛，066004
2.先进锻压成形技术与科学教育部重点试验室（燕山大学），秦皇岛，066004
3.北京电子科技职业学院,北京，100000
4.秦皇岛格瑞因环境工程有限公司，秦皇岛，066004
• 基金资助:
河北省教育厅高等学校科技计划青年基金资助项目（QN2019001）；
国家自然科学基金资助项目（51505411，51875498）；
河北省自然科学基金资助重点项目（E2018203339）

Abstract: The hydraulic pump was taken as an example, and the slipper pair, the weakest link were the research object, and the wear of slipper was used as the causes of performance degradation. The oil film lubrication characteristic equations of the shoe wear processes were established by combining the mathematical description equation of the wear of slipper, the leakage flow formula and the instantaneous change model of piston chamber pressure. The failure mechanism of hydraulic pump performance was revealed and the failure critical points were calculated. The performance degradation states of hydraulic pump were divided into different regions, and the variation law of slipper wear, oil film lubrication characteristic parameters and performance degradation parameters of the hydraulic pump in different states were analyzed, a performance prediction model was established. The correctness of the theoretical model was verified by simulation analyses, and the validity and accuracy of the prediction model were verified by hydraulic pump performance tests. The results show that the built model may accurately predict hydraulic pump performance.

CLC Number: