基于振动特性的高速开关阀动态特性测试研究  

Test Method for Dynamic Performance of High Speed on/off Valve Based on Vibration Characteristic

作　　者：钟麒 贾体伟[1,3] 徐恩光[1,3] 余诚 杨华勇 李研彪 ZHONG Qi;JIA Tiwei;XU Enguang;YU Cheng;YANG Huayong;LI Yanbiao(College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310023;State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University,Hangzhou 310027;Key Laboratory of Special Purpose Equipment and Advanced Processing Technology,Ministry of Education and Zhejiang Province,Zhejiang University of Technology,Hangzhou 310023)

机构地区：[1]浙江工业大学机械工程学院,杭州310023 [2]浙江大学流体动力基础件与机电系统全国重点实验室,杭州310027 [3]浙江工业大学特种装备制造与先进加工技术教育部/浙江省重点实验室,杭州310023

出　　处：《机械工程学报》2025年第6期331-339,共9页Journal of Mechanical Engineering

基　　金：国家自然科学基金(52005441);浙江省自然科学基金(LQ21E050017);浙江省‘尖兵’‘领雁’研发攻关计划(2022C01132,2022C01122);中国博士后科学基金(2021M692777,2021T140594);机械系统与振动国家重点实验室开放基金课题(MSV202316);中国科协青年人才托举工程(2022QNRC001)资助项目。

摘　　要：高速开关阀是数字液压系统的核心控制元件,动态特性是衡量高速开关阀性能的重要指标,也是确保数字液压系统控制精度的关键。然而,由于高速开关阀结构紧凑、体积小等原因,传统的位移检测方法难以直接获取其动态性能,使得高速开关阀动态性能精准评估成为数字液压领域的一大难点。提出基于振动特性的高速开关阀动态性能检测方法,建立开关阀动态启闭过程中的阀体振动模型,揭示出阀体振动规律,得到阀体振动特性与阀芯运动起止状态的映射关系,实现高速开关阀动态性能的实时检测。为体现基于振动检测高速开关阀动态特性方法的优越性,分别测试三电压、四电压方法驱动下高速开关阀的动态特性,并使用激光位移传感器方法进行比较和验证。试验结果表明,提出的检测方法能够在不改变高速开关阀内部结构和不破坏其原有动态特性的情况下,精准获取高速开关阀的动态启闭时间,相较于现有的测试方法,具有可靠性强、实时性高、经济实惠等优势。High speed on/off valve(HSV)is the core control component of digital hydraulic system(Test Method for Dynamic Performance of High Speed on/off Valve Based on Vibration CharacteristicDHS).Dynamic characteristic is not only an important index to evaluate the performance of HSV,but also the key to ensure the control accuracy of DHS.However,due to the compact structure and small size of the HSV,traditional displacement detection method is hardly to directly measure its dynamic performance,which makes the accurate evaluation for the dynamic performance of the HSV a huge challenge in the field of digital hydraulics.The detection method for the dynamic performance of HSV based on vibration characteristic is proposed,the valve vibration model during the dynamic opening and closing process is established,the vibration law of the valve body is revealed,and the relationship between valve body vibration and switching status of HSV is studied,and the real-time measurement for the dynamic performance of the HSV is finally realized.In order to reflect the superiority of the vibration-based detection method for the dynamic characteristic of HSV,the HSV driven by three-voltage and four-voltage methods is tested,and the laser displacement sensor method is used to verify the results.The experimental results show that the measurement approach can accurately obtain the dynamic opening and closing time of the HSV without changing the internal structure of the HSV and without destroying its original dynamic characteristic.Compared with the existing testing methods,the vibration test method has the advantages of strong reliability,real time performance and economic benefits.

关 键 词：高速开关阀 数字液压 动态性能 振动特性 

分 类 号：TH137[机械工程—机械制造及自动化]