朱 勇,姜万录,王 梦,刘志强.非线性时变力作用下液压缸爬行机理与抑制方法研究[J].农业机械学报,2014,45(3):305-313.
Zhu Yong,Jiang Wanlu,Wang Meng,Liu Zhiqiang.Creeping Mechanism and Suppression Methods of Hydraulic Cylinder under Nonlinear Time-varying Force[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(3):305-313.
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非线性时变力作用下液压缸爬行机理与抑制方法研究   [下载全文]
Creeping Mechanism and Suppression Methods of Hydraulic Cylinder under Nonlinear Time-varying Force   [Download Pdf][in English]
投稿时间:2013-10-17  
DOI:10.6041/j.issn.1000-1298.2014.03.050
中文关键词:  液压缸 低速爬行 机理分析 抑制措施
基金项目:国家重点基础研究发展计划(973计划)资助项目(2014CB046405)、国家自然科学基金资助项目(51075349)和河北省自然科学基金资助项目(E2013203161)
作者单位
朱 勇 燕山大学 
姜万录 燕山大学 
王 梦 燕山大学 
刘志强 燕山大学 
中文摘要:以液压缸系统为研究对象,研究了爬行现象的产生机理及抑制方法。通过理论研究,揭示了液压弹簧刚度和摩擦力内在的非线性时变规律及作用机理。用非线性动力学研究方法对实测的液压缸系统的动态数据进行了深入分析,揭示了液压弹簧刚度非线性时变特性引起的“跳跃现象”和摩擦力非线性时变特性引起的“极限环型振荡”现象。指出非线性液压弹簧力和非线性摩擦力的共同作用是液压缸产生低速爬行的主要原因,并提出了相应的抑制措施来有效提高液压缸的低速传动性能。
Zhu Yong  Jiang Wanlu  Wang Meng  Liu Zhiqiang
Yanshan University;Yanshan University;Yanshan University;Yanshan University
Key Words:Hydraulic cylinder Low-speed creeping Mechanism analysis Suppression measures
Abstract:The aim of this research is to explore the mechanism and the suppression methods of creeping phenomenon in hydraulic cylinder system. The nonlinear time-varying laws and function mechanism of hydraulic spring stiffness and friction were revealed through theory analysis. Then, with the nonlinear dynamics methods, the measured dynamic data were thoroughly analyzed. The “jump phenomenon” caused by the nonlinear time-varying characteristic of hydraulic spring stiffness and the “limit cycle oscillation” caused by the nonlinear time-varying characteristic of friction were revealed. The combined effect of nonlinear hydraulic spring force and nonlinear friction is the main cause for the low-speed creeping of hydraulic cylinder. Moreover, the corresponding suppression measures were proposed to improve the low-speed transmission stability of hydraulic cylinder. The results indicate that the research can make the comprehensive analysis of dynamic characteristics of hydraulic cylinder system more realistic.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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