Analysis and verification of gas content and pressure change rate characteristics in hydraulic system

作     者：Han Heyong Liu Yuan Qin Lixia Wang Kai Peng Huayu 韩贺永;Liu Yuan;Qin Lixia;Wang Kai;Peng Huayu

作者机构：Collaborative Innovation Center of Taiyuan Heavy Machinery EquipmentTaiyuan University of Science and Technology 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2019年第25卷第3期

页      面：326-333页

核心收录：

学科分类：07[理学] 08[工学] 0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 0810[工学-信息与通信工程] 1205[管理学-图书情报与档案管理] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0836[工学-生物工程] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Support by the National Natural Science Foundation of China(No.51505315) the Program for the Top Young Academic Leaders of Higher Learning Institutions of Shanxi the Collaborative Innovation Center of Taiyuan Heavy Machinery Equipment Funded the Fund for Shanxi“1331 Project”Key Subjects Construction 

主　　题：hydraulic system gas content establishment of pressure rate rapid pressure building device pressure building time 

摘      要：Gas content of the hydraulic system directly affects the rate of pressure change of the hydraulic system. The purpose of this paper is to establish a mathematical model of oil gas content, hydraulic system pressure and pressure rise rate, obtain corresponding oil pressure value when the pressure rise rate of different gas content is maximum, and verify the accuracy of this conclusion by the FLUENT simulation software. On this basis, a rapid pressure building device of the hydraulic system is developed and designed. The above oil pressure value is used as the working cut-off pressure of the rapid pressure building device, and then the hydraulic oil pump continues to pressurize to the highest working pressure required by the system. The research content can replace the hydraulic system from the initial low pressure to the rapid pressure build-up of the oil, thus increasing the construction pressure of the hydraulic system. The research results show that the rapid pressure building device effectively reduces the time for the hydraulic system to establish pressure. Through the analysis of theoretical derivation and the collected experimental data, the error is about 5.9%, which verifies the correctness of the theoretical formula.