预应力张拉电液伺服执行系统的仿真  

Simulation of Electro-hydraulic Servo Execution System for Pre-tensioning

作　　者：罗昂昂 马伟[1,2] 李济顺[1,2] LUO Ang-ang1,2 , MA Wei1,2, LI Ji-shun1,2(1. School of Meehatronies Engineering, Henan University of Science and Technology, Luoyang 471003, Henan, China; 2. Henan Key Laboratory for Machinery Design and Transmission System, Henan University of Science and Technology, Luoyang 471003, Henan, Chin)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]河南科技大学河南省机械设计与传动系统重点实验室,河南洛阳471003

出　　处：《筑路机械与施工机械化》2018年第4期97-102,共6页Road Machinery & Construction Mechanization

基　　金：国家科技支撑计划课题项目(2015BAF32B04-3);河南省高校科技创新团队项目(15TLTSTHN008);洛阳市科技计划项目(1501001A)

摘　　要：为了提高预应力张拉设备对施工现场的适应性与可靠性,改善现有预应力张拉系统繁杂的控制结构,以变频泵控液压系统取代常用的节流阀控液压系统,并利用Simulink/Simhydraulics平台建立该执行系统的物理模型,进行张拉动态模拟仿真,通过试验对该电液伺服执行系统的实际施工效果进行了验证。结果表明,该电液伺服执行系统能够在复杂的施工环境下平稳地完成张拉过程。In order to improve the adaptability and reliability of the pre-tensioning equipment on the construction site and simplify the complex control structure of the existing pre-tensioning system,commonly used throttle-controlled hydraulic systems were replaced by pump-controlled hydraulic systems with variable frequency.Using Simulink/Simhydraulics platform to build the physical model of the execution system,the dynamic simulation was performed,and the actual effect of the electro-hydraulic servo execution system was verified through tests.The results show that the electro-hydraulic servo execution system can smoothly complete the tensioning process in a complex construction environment.

关 键 词：机械工程 预应力张拉 电液伺服系统 阀控液压系统 

分 类 号：U445.3[建筑科学—桥梁与隧道工程]