Please wait a minute...
浙江大学学报(工学版)
浙江大学学报(工学版)
机械工程     
基于不同阀芯结构的新型电液激振器
韩冬,龚国芳,刘毅,杨学兰
浙江大学 流体动力与机电系统国家重点实验室,浙江 杭州 310027
New electro-hydraulic exciter based on different spools
HAN Dong, GONG Guo-fang, LIU Yi, YANG Xue-lan
The State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027, China
 全文: PDF(1611 KB)  
摘要：

针对液压激振与夹持独立的捣固装置,设计一种由阀芯旋转式四通换向阀和微行程双作用液压缸构成的新型电液激振器.在考虑阀口压降对旋转阀芯阀口过流面积影响的基础上,分别对无环形槽阀芯和有环形槽阀芯建立对应的阀口过流面积模型,对新型电液激振器在较高激振频率下的振动波形进行理论数值仿真和实验验证研究,为旋转阀芯结构设计提供理论指导和实验依据.分析结果表明：有环形槽阀芯的过流面积呈线性变化,无环形槽阀芯的过流面积呈非线性变化；有环形槽阀芯过流面积峰值、加速度峰值和位移峰值比无环形槽阀芯过流面积峰值、加速度峰值和位移峰值大；有环形槽的阀芯加速度曲线波动程度比无环形槽的阀芯加速度曲线波动程度小.矩形沟槽数量不影响过流面积曲线、加速度曲线和位移曲线变化趋势,且随着阀芯矩形沟槽数量的增加,加速度曲线波动也会有一定程度地增加．
关键词： 旋转阀芯结构;  阀口压降;  数值仿真;  电液激振器    
Abstract:

Considering the new tamping device with hydraulic excitation and independent clamping movement, this paper proposed a new electro-hydraulic exciter consisting of spin valve and micro-displacement double-functioned hydraulic cylinder, established the corresponding flow area model of different spools and validated the waveform with high frequency theoretically and experimentally. The results show that the flow area of spool with ring groove is linear and the flow area of spool without ring groove is non linear. The flow area peak, acceleration peak and displacement peak of spool with ring groove are bigger than those of spool without ring groove. It is also found that acceleration carves exist fluctuation in degree, and that acceleration fluctuation of spool with ring groove is smaller than that of spool without ring groove. In addition, numbers of grooves don't affect trends of flow area, acceleration and displacement, but the acceleration fluctuation increases with the increase of grooves.
Key words: orifice pressure drop    numerical simulation    electro-hydraulic exciter    spool structure
出版日期: 2014-06-12
:  TH 137  
基金资助:

国家自然科学基金资助项目(51275499)；国家“973”重点基础研究发展规划资助项目(2013CB035404)；国家自然科学基金创新研究群体科学基金资助项目(51221004)
通讯作者: 龚国芳，男，教授，博导.     E-mail: gfgong@zju.edu.cn
作者简介: 韩冬（1987-），男，硕士生，从事电液激振技术研究及新型液压元件研制，E-mail:juebuqingchen@gmail.com
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章　　
龚国芳
刘毅
韩冬
杨学兰

引用本文:

韩冬,龚国芳,刘毅,杨学兰. 基于不同阀芯结构的新型电液激振器[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.05.001.

HAN Dong, GONG Guo-fang, LIU Yi, YANG Xue-lan. New electro-hydraulic exciter based on different spools. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.05.001.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2014.05.001    或    http://www.zjujournals.com/xueshu/eng/CN/Y2014/V48/I5/757

［1］ 郝建功,张耀成. 新型电液激振装置的性能研究 ［J］.太原理工大学学报,2003,34(6):706-709．
HAO Jian-gong,ZHANG Yao-cheng.Research on the perform-ance of a new electro-hydraulic exciter ［J］.Journal of Taiyu-an University of Technology,2003,34(6):706-709．
［2］ 阮健,李胜,裴翔,等. 2D阀控电液激振器 ［J］.机械工程学报,2009,45(11):125-132．
RUAN Jian,LI Sheng,PEI Xiang,et al. Electro-hydraul-ic exciter with 2D valve ［J］.Chinese Journal of Mechanical Engineering,2009,45(11):125-132．
［3］ 龚国芳,杨林勇,刘毅,等. 一种液压激振与夹持运动独立的捣固装置: 中国,2010101046729 ［P］.2010-01-29．
GONG Guo-fang,YANG Lin-yong,LIU Yi. A new type of ta-mping device with hydraulic excitation and independent cla-mping movement: China ,2010101046729 ［P］.2010-01-29．
［4］ 刘毅,龚国芳,闵超庆,等. 新型捣固装置的结构建模与仿真 ［J］.浙江大学学报：工学版,2011,45(11):19411947.
LIU Yi,GONG Guo-fang,MIN Chao-qing. Structure modeling and simulation of new type of tamping device ［J］.Journal of Zhejiang University：Engineering Science,2011,45(11):19411947．
［5］ 闵超庆,龚国芳,刘毅. 新型捣固装置及其仿真研究 ［J］.工程机械,2011,42(5):31-35.
MIN Chao-qing,GONG Guo-fang,LIU Yi. Design and research on new type of tamping device ［J］.Construction Machinery and Equipment,2011,42(5):31-35．
［6］ MIN Chao-qing,GONG Guo-fang,LIU Yi. Design and sim-ulation research on new tamper based on ADAMS ［C］∥2010 International Conference on Digital Manufacturing & Aut-omation.Hunan: IEEE,2010:494498．
［7］ 张玮昌. 激振设备及其应用 ［J］.电动工具,2003(4):7-12．
ZHANG Wei-chang. Application of excitation equipment ［J］. Electric Tool,2003(4):7-12．
［8］ IPHAR M.ANN,ANFIS. Performance prediction models for hydraulic impact hammers ［J］.Tunnelling and Underground Technology,2012,27(1):2329．
［9］ 龚国芳,刘毅,闵超庆,等. 用于液压激振器的阀芯旋转式四通换向阀: 中国,2010101003051 ［P］.2010-01-09．
GONG Guo-fang, LIU Yi,MIN Chao-qing. A new spin valve for electrohydraulic exciter: China, 2010101 003051 ［P］.2010-01-09．
［10］ 龚国芳,闵超庆,刘毅,等. 微行程双作用液压缸: 中国,2011102298558 ［P］.2011-08-11．
GONG Guo-fang, MIN Chao-qing,LIU Yi. Micro-displacement double functioned oscillation cylinder: China, 2011102298558 ［P］.2011-08-11．
［11］ 龚国芳,刘毅,闵超庆,等. 一种捣固装置的液压激振系统: 中国,2010105201475 ［P］.2010-10-26．
GONG Guo-fang, LIU Yi,MIN Chao-qing. A new electro-hyd-raulic exciter: China,2010105201475 ［P］.2010-10-26．
[1] 左曙光, 李悦姣, 吴旭东, 韦开君, 孙罕. 爪极电机气动噪声数值模拟及机理分析[J]. 浙江大学学报(工学版), 2017, 51(3): 612-619.
[2] 杨骥, 郝志勇, 葛如炜, 郑康, 郑旭. 发动机冷却模块振动优化[J]. J4, 2012, 46(12): 2194-2200.
[3] 肖宝兰, 俞小莉,韩松,陆国栋,夏立峰. 翅片参数对车用中冷器流动传热性能的影响[J]. J4, 2010, 44(11): 2164-2168.
[4] 豆瑞锋 温治 李强 程淑明 邹航 冯霄红 董斌. 基于连续退火炉数学模型的炉温优化策略[J]. J4, 2007, 41(10): 1735-1738.
[5] 司俊龙 温治 刘训良. 基于水分蒸发非线性迁移的炭化室传热模型[J]. J4, 2007, 41(10): 1746-1749.