节流槽结构参数对阀开启压力冲击及空化特性的影响研究

陈远玲,欧阳崇钦,彭卓,陈承宗,石浩,王梦乔

振动与冲击 ›› 2024, Vol. 43 ›› Issue (7) : 50-56.

PDF(2872 KB)
PDF(2872 KB)
振动与冲击 ›› 2024, Vol. 43 ›› Issue (7) : 50-56.
论文

节流槽结构参数对阀开启压力冲击及空化特性的影响研究

  • 陈远玲,欧阳崇钦,彭卓,陈承宗,石浩,王梦乔
作者信息 +

Effects of structural parameters of throttling groove on valve opening pressure impact and cavitation characteristics

  • CHEN Yuanling, OUYANG Chongqin, PENG Zhuo, CHEN Chengzong, SHI Hao, WANG Mengqiao
Author information +
文章历史 +

摘要

液压控制阀阀芯节流槽的结构对阀的动态特性影响强烈,不良节流槽结构将导致极大的液压阀开启瞬间压力冲击。针对某型号负载敏感多路阀在甘蔗联合收割机的应用中出现啸叫和液压冲击的问题,结合动网格与RNG-K-ε湍流模型,对U+T型节流槽和V型节流槽的压力冲击及空化进行了对比分析,发现同等条件下V型槽的阀芯较U+T型槽的阀芯的压力冲击下降了19.37% ,最大空化程度降低了43.7%。选取V型节流槽开展进一步研究,通过正交试验获取不同节流槽结构参数下的压力峰值;采用BP神经网络建立V型节流槽结构参数与压力冲击的代理模型,结合灰狼算法(GWO)得到节流槽结构参数的最优配置;依据优化结果制作阀芯并进行试验,结果显示,抑制压力冲击效果显著,系统压力超调下降至原来52.4%。

Abstract

The structure of the throttle groove of the spool of the hydraulic control valve has a strong impact on the dynamic characteristics of the valve, and a poor throttle groove structure will lead to a great hydraulic valve opening instant pressure shock. For a model of load-sensitive multi-way valve in the application of sugarcane combine harvester whistling and hydraulic shock, combined with dynamic mesh and RNG-K-ε turbulence model to compare the pressure shock and cavitation of U + T throttle groove and V throttle groove. It was found that the pressure shock of the spool with V-groove decreased by 19.37% and the maximum cavitation decreased by 43.7% compared with that of the spool with U+T-groove under the same condition. The V-groove was selected for further study, and the peak pressure under different throttle groove structural parameters was obtained through orthogonal tests. The BP neural network is used to establish an agent model of the structural parameters of the V-throttle groove and the pressure impact, and the optimal configuration of the structural parameters of the throttle groove is obtained by combining with the Gray Wolf Algorithm (GWO). According to the optimization results of the production of valve spool and test, the results showed that the inhibition of pressure shock effect was significant, the system pressure overshooting down to the original 52.4%.

关键词

流场仿真 / BP代理模型 / GWO / 节流槽优化 / 冲击抑制

Key words

CFD / BP proxy model / GWO / throttle groove optimization / impact of inhibition

引用本文

导出引用
陈远玲,欧阳崇钦,彭卓,陈承宗,石浩,王梦乔. 节流槽结构参数对阀开启压力冲击及空化特性的影响研究[J]. 振动与冲击, 2024, 43(7): 50-56
CHEN Yuanling, OUYANG Chongqin, PENG Zhuo, CHEN Chengzong, SHI Hao, WANG Mengqiao. Effects of structural parameters of throttling groove on valve opening pressure impact and cavitation characteristics[J]. Journal of Vibration and Shock, 2024, 43(7): 50-56

参考文献

[1] 林言丕. 流量切断瞬时V型阀口空化现象研究[D]. 兰州:兰州理工大学,2019. LIN Yanpi.Instantaneous Cavitation Phenomenon in V Shape Valve when the Flow is Cut off[D].Lanzhou: Lanzhou University of Technology,2019. [2] 赵永华,阮健,丁川,等.基于FLUENT的二维阀空化与压力脉动的特性研究[J].振动与冲击,2022,41(18):228-235. ZHAO Yonghua,RUAN Jian,DING Chuan,rt al. Characteristics of cavitation and pressure fluctuation of a two-dimensional valve based on FLUENT simulation[J].Journal of vibration and shock,2022,41(18):228-235. [3] 杜学文,邹俊,傅新,等.节流槽结构对气穴噪声的影响[J].浙江大学学报(工学版),2007(03):456-460+465. DU Xuewen,ZOU Jun,Fu Xin,et al.Effect of throttling grooves structure on cavitation noise [J].Journal of Zhejiang University (Engineering Science),2007(03):456-460+465. [4] GAO H,FU X,YANG H,et al.Numerical and experimental investigation of cavitating flow in oil hydraulic ball valve[C]//Proceedings of the JFPS International Symposium on Fluid Power. The Japan Fluid Power System Society, 2002, 2002(5-3): 923-928. [5] Al-Obaidi A R. Investigation of effect of pump rotational speed on performance and detection of cavitation within a centrifugal pump using vibration analysis[J]. Heliyon, 2019, 5(6): e01910. [6] 刘秀梅,谢永伟,李贝贝,等.调节阀内瞬态空化压力脉动特性分析[J].振动与冲击,2022,41(19):282-288. LIU Xiumei,XIE Yongwei,LI Beibei,et al.Transient cavitation pressure fluctuation characteristics in regulating valve[J].Journal of vibration and shock,2022,41(19):282-288. [7] 李贝贝,刘秀梅,龙正,等.基于Fluent的节流阀油液空化流场数值分析[J].振动与冲击,2015,34(21):54-58. LI Beibei,LIU Xiumei,LONG Zheng,et al.Simulation and analysis for cavitation flow field in a throttle valve based on Fluent[J].Journal of vibration and shock,2015,34(21):54-58. [8] 陈小磊,张青苗,赵锋,等.多路阀滑阀节流槽计算方法研究[J].机床与液压,2019,47(05):53-56+29. CHEN Xiaolei,ZHANG Qingmiao,ZHAO Feng,et al.Research on the Calculation Method of Throttling Groove in Multi-way Valve [J].Machine Tool &Hydraulics,2019,47(05):53-56+29. [9] Borghi M, Milani M, Paoluzzi R. Influence of notch shape and number of notches on the metering characteristics of hydraulic spool valves[J]. International Journal of Fluid Power, 2005, 6(2): 5-18. [10] 张鑫,谢道祥,李旭,等.节流槽形式对滑阀空化流场的影响[J].液压与气动,2021,45(03):7-13. ZHANG Xin,XIE Daoxiang,LI xu,et al.Effects of Groove Type on Cavitation Flow Field of spool Valve [J].Chinese Hydraulics & Pneumatics,2021,45(03):7-13. [11] 吴必霖,冀宏,郑直.V形节流阀口瞬态空化特性研究[J].液压气动与密封,2019,39(04):61-64. WU Bilin,JI Hong,ZHENG Zhi.The Study on Transient Cavitation Characteristics of the Valve Port with V-grooves [J].Hydraulics Pneumatics &Seals,2019,39(04):61-64. [12] 贺杰,刘秀梅,李贝贝,等.U型节流阀流场特性的数值和试验研究[J].振动与冲击,2022,41(20):284-290. HE Jie,LIU Xiumei,LI Beibei,et al.Experimental and numerical investigation of flow field characteristics in a U-shaped throttle valve[J].Journal of vibration and shock,2022,41(20):284-290. [13] He J, Li B, Liu X. Investigation of flow characteristics in the U-shaped throttle valve[J]. Advances in Mechanical Engineering, 2019, 11(3): 1687814019830492. [14] 张占东,吕凯波,姚利花,等.带有三角形节流槽的支架换向阀工作性能分析[J].机床与液压,2020,48(15):161-165. ZHANG Zhandong,LV Kaibo,YAO Lihua,et al.Operation Performance Analysis Hydraulic Support Directional Valve with Triangular Throttling Groove[J].Machine Tool &Hydraulics2020,48(15):161-165. [15] 张健,姜继海,白云峰,等.锥型节流阀压力特性仿真与试验[J].华中科技大学学报(自然科学版),2015,43(04):64-68. ZHANG Jian,JIANG Jihai,BAI Yunfeng,et al.Simulation and experiment of pressure characteristic of cone type throttle value[J].J. Huazhong Univ.of Sci.&Tech.(Natural Science Edition),2015,43(04):64-68. [16] 李维嘉,兰秋华,彭勇,等.基于粒子群算法的滑阀节流槽优化设计[J].中国机械工程,2015,26(8):995-999. LI Weijia,LAN Qiuhua,PENG Yong,et al.Optimization Design of Notches in Spool Valve Based on PSO Algorithm[J].China Mechanical Engineering,2015,26(08):995-999. [17] 姜涛,黄伟,王安麟.多路阀阀芯节流槽拓扑结构组合的神经网络模型[J].西安交通大学学报,2016,50(06):36-41. JIANG Tao,HUANG Wei,WANG Anlin.A neural Network Model for Spool Throttling Groove Topology Combination of Multi-Way Valves[J].Journal of XI’AN Jiaotong University ,2016,50(06):36-41. [18] Zhang X, Wang A, Tang J. Optimal design of multi-section proportional directional valve throttle grooves with artificial neural networks[C]//MATEC Web of Conferences. EDP Sciences, 2018, 237: 03003. [19] Li C, Liu X, Wang X, et al. Optimization of multi-way valve structure in digital hydraulic system of loader[J]. Energies, 2021, 14(3): 700. [20] 孙泽刚,肖世德,王德华,等.液压滑阀V型节流槽气穴流仿真分析及结构优化研究[J].兵工学报,2015,36(02):345-354. SUN Zegang,XIAO Shide,WANG Dehua,et al.Cavitation Flow Simulation and Structural Optimization of Hydraulic Spool Valve V-throttle Groove[J].Acta Armamentarii,2015,36(02):345-354.

PDF(2872 KB)

225

Accesses

0

Citation

Detail

段落导航
相关文章

/