两种柴油机电液执行器的比较研究  

Comparison Between Two Types of Electro-hydraulic Actuators Used in Diesel Engines

作　　者：付玉林[1] 陈远玲[1] 

机构地区：[1]广西大学机械工程学院

出　　处：《机床与液压》2008年第10期47-48,160,共3页Machine Tool & Hydraulics

基　　金：广西自然科学基金项目(0778006-12)

摘　　要：为比较差动式电液执行器及弹簧复位式电液执行器的响应速度,建立了两者的数学模型,通过仿真研究了两者的差异。结果表明,在5MPa的油源压力下,当两者结构参数完全相同时,差动式电液执行器的平均响应速度及最大位移量约为弹簧复位式电液执行器的2倍。此外,差动式电液执行器的运行速度比弹簧复位式稳定,这有利于保证柴油机电控系统的精度。To compare the response speeds of the differential connection electro-hydraulic actuator with the spring-returning electro-hydraulic actuator, the mathematical models were established and simulated. The results show that both the average response speed and the maximum displacement of the differential connection electro-hydraulic actuator are about two times of the spring-returning electro-hydraulic actuator when the source pressure is 5MPa and all the structural parameters are the same. The speed of the differential connection electro-hydraulic actuator is more stable than the spring-returning type, which is conducive to ensure the accuracy of electronic control systems of diesel engines.

关 键 词：柴油机 电液执行器 响应速度 

分 类 号：TH137[机械工程—机械制造及自动化]