为解决船用液压缸在工作过程中产生的液压冲击影响船舶液压元件及液压系统可靠性的问题，本文针对液压缸缓冲特性进行研究分析。通过建立液压缸缓冲过程数学模型，推导理论最优的液压缸结构形式。搭建基于AMESim的阀控液压缸液压系统动力学仿真模型，仿真分析不同液压缸活塞结构与不同初始间隙下的液压缸缓冲特性，并将仿真结果与理论推导结果进行对比，研究结果对理解、使用和设计船用液压缸具有一定的参考价值。
To solve the hydraulic shock affecting the reliability of marine hydraulic component and system during the hydraulic cylinder working process, the cushion characteristics of hydraulic cylinder served as the research object. Based on the mathematical model of hydraulic cylinder cushion process, the best structure of hydraulic cylinder has been analyzed. The dynamic simulation model of the complete hydraulic system containing hydraulic cylinder controlled by valves has been built in AMESim. The simulation results which are compared with theoretical analysis results indicate the cushion characteristics of hydraulic cylinder under different structure and initial gap. The research will be useful for understanding, utilizing and designing marine hydraulic cylinder.
2019,41(8): 114-117 收稿日期：2018-10-19
DOI：10.3404/j.issn.1672-7649.2019.08.022
分类号：TH137
作者简介：赖奇暐(1991-),男,工程师,现从事流体传动与控制技术方面的研究工作
参考文献：
[1] 王洪波, 王邦勤, 王旭东. 船用活塞式液压缸故障分析[J]. 中小企业管理与科技, 2010(2):207-208
[2] SOCHACKI W. Modelling and analysis of damped vibration in hydraulic cylinder[J]. Mathematical & Computer Modelling of Dynamical Systems, 2015, 21(1):23-37
[3] 陈宗斌, 何琳, 徐荣武. 船用操舵系统低噪声设计及特性分析[J]. 舰船科学技术, 2016, 38(7):49-53 CHEN Zong-bin, HE Lin, XU Rong-wu. Low noise design and characteristics analysis for marine steering system[J]. Ship science and Technology, 2016, 38(7):49-53
[4] TENG C K, HSIAO C Y, WANG C S. The effect of the guiding directions of the guiding cylinders of an area ratio modified machine cushion on the capability of suppressing impact and vibration[J]. Advances in Engineering Software, 2009, 40(10):991-999
[5] GHADIMI, PARVIZDASHTIMANESH, ABBASDJEDDI, et al. Study of water entry of circular cylinder by using analytical and numerical solutions[J]. Journal of the Brazilian Society of Mechanical Sciences & Engineering, 2012, 34(3):225-232
[6] 王成斌, 权龙. 大惯量负载液压冲击的主动变阻尼抑制方法[J]. 机械工程学报, 2014, 50(8):182-188
[7] 陈勋, 李丽红, 周军, 等. 高压斗杆缸缓冲性能影响参数的分析与优化研究[J]. 机电工程, 2014, 31(7):833-838.
[8] 方秀荣, 范海峰. 液压缓冲制动缸的设计研究[J]. 机床与液压, 2010, 38(10):43-45 FANG Xiu-rong, FAN Hai-feng. Design of the cushion and brake hydraulic cylinder[J]. Machine Tool & Hydraulics, 2010, 38(10):43-45
