基于AMESim的液压缸制动过程中重力势能回收系统仿真分析  

Simulation Analysis of Gravity Potential Energy Recovery System in Hydraulic Cylinder Braking Process Based on AMESim

作　　者：陈轶辉[1] 李洪星[2] 赵树忠 张雨新[1] CHEN Yi-hui;LI Hong-xing;ZHAO Shu-zhong;ZHANG Yu-xin(Department of Automation Engineering, Tangshan Institute of Industrial Technology, Tangshan, Hebei 063299;Tangshan Yate Special Purpose Vehicle Co. , Ltd. , Tangshan, Hebei 063299;College of Mechanical Engineering, North China University of Science and Technology, Tangshan, Hebei, 063299)

机构地区：[1]唐山工业职业技术学院自动化工程系,河北唐山063299 [2]唐山亚特专用汽车有限公司,河北唐山063299 [3]华北理工大学机械工程学院,河北唐山063299

出　　处：《液压与气动》2020年第8期88-92,共5页Chinese Hydraulics & Pneumatics

基　　金：河北省工业和信息化厅新产品新技术项目(20170129);河北省科技计划项目(201616210342)。

摘　　要：为缓解液压缸制动期间形成的冲击作用并降低能量损耗,设计了一种建立在液压蓄能器基础上的储能系统并回收制动能量,利用AMESim平台对系统制动性能与能量回收效率开展了仿真研究。研究结果表明:0~0.5 s期间液压缸保持匀速运动的状态,之后系统到达制动阶段并进行能量回收。在切断阀开始制动的时候回油路已经达到很小的流量,从而不会对缓冲腔形成明显冲击作用。随着负载的增大,所需的制动时间也更长。在不同的负载下,液压缸的制动腔压力与制动距离都会发生变化,表明此系统能够充分适应负载的变化。不同初速度下液压缸制动腔各项参数都出现增大现象,随着初速度的增大,制动时间由1.6 s延长至1.75 s,达到了良好制动效果。To alleviate the impact of hydraulic cylinder during braking and reduce energy loss,an energy storage system based on the hydraulic accumulator is designed and the braking energy is recovered.The braking performance and energy recovery efficiency of the system are carried out using the AMESim platform.Results show that the hydraulic cylinder keeps uniform motion during 0~0.5 s,and then the system reaches the braking stage and energy recovery.When the cut-off valve starts to brake,the oil return circuit has reached a small flow rate without forming a significant impact on the buffer cavity.As the load increases,the braking time becomes longer.Under different loads,the brake chamber pressure and braking distance of the hydraulic cylinder will change,indicating that the system can fully adapt to the change of load.All parameters of the brake chamber of the hydraulic cylinder increase at different initial speeds.With the increase of initial speed of the hydraulic cylinder,the braking time is extended from 1.6 s to 1.75 s,which achieves a good braking effect.

关 键 词：液压缸 制动 重力势能 回收系统 仿真分析 

分 类 号：TH137[机械工程—机械制造及自动化]