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GMM高速开关阀用液压放大器建模与实验 被引量:2

Modeling and Experiment on Hydraulic Amplifier for GMM High-speed On-off Valve
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摘要 针对超磁致伸缩直驱式高速开关阀阀芯位移小的问题,设计了一种活塞-薄片式的液压放大器,利用"钱氏法"和"S.Way解"建立了薄片大挠度变形模型;考虑油液有效体积弹性模量的影响,建立了液压放大器位移的输入-输出模型。仿真与实验结果表明,当液压放大器输入位移为0~51.1μm时,输出位移为0~470μm,放大倍数大于9倍,频响在150 Hz左右。 Aiming at the small displacement of the valve core of thedirectly driven giant magnetostrictive high-speed on-off valve spool,a piston-slice hydraulic amplifier was designed.The Chien-perturbation method and S.Way’s solution was used to establish the large deflection deformation model of the slice.Considering the influence of effectiveliquid bulk elastic modulus,a displacement input-output model of hydraulic amplifier is established.The simulation and experimental results show thatthe output displacement of the hydraulic amplifier is 0~470 μmwhen the amplifier input displacement is 0~51.1 μm,the magnification is more than 9 times,and the frequency response is about 150 Hz.
作者 罗樟 朱玉川 高强 LUO Zhang;ZHU Yuchuan;GAO Qiang(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处 《压电与声光》 CAS 北大核心 2019年第2期265-268,274,共5页 Piezoelectrics & Acoustooptics
基金 国家自然科学基金资助项目(51575258) 江苏高校"青蓝工程"基金资助项目 江苏高校品牌专业建设工程与2017年南京航空航天大学研究生教育教学改革研究基金资助项目(2017YJXGG09) 南京航空航天大学研究生创新基地(实验室)开放基金资助项目(kfjj20170528)
关键词 液压放大 大挠度 有效体积弹性模量 超磁致伸缩材料(GMM) 高速开关阀 hydraulic amplification large deflection effective liquid bulk elastic modulus giant magnetostrictive material(GMM) high-speed on-off valve
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