串联齿轮泵变相位角脉动特性及振动抑制试验研究

PDF(2148 KB)

振动与冲击 ›› 2024, Vol. 43 ›› Issue (10) : 44-51.

论文

展鹏1，强彦1,2，魏列江1,2，冯整顺1，罗小梅3

作者信息 +

Experimental study on the variable phase angle pulsation characteristics and vibration suppression of tandem gear pumps

ZHAN Peng1，QIANG Yan1,2，WEI Liejiang1,2，FENG Zhengshun1，LUO Xiaomei3

Author information +

文章历史 +

摘要

针对大流量串联泵存在的压力脉动与振动冲击问题，提出串联外啮合齿轮泵变相位角的减振降噪方法，推导出串联外啮合齿轮泵的瞬时流量及脉动不均匀系数的数学方程，理论分析串联外啮合齿轮泵不同相位角的瞬时流量脉动，分析变相位角时脉动不均匀系数的变化规律，并推导流量脉动与压力脉动的关系。针对实际相位差为0°和20°的串联泵，在串联泵出口处设置了双节流阀的负载来获得不同工况的压力脉动。推导出的压力脉动与实验值吻合，压力脉动是由一系列i次谐波组成的，频率与流量脉动相同，但振幅和相位与流量脉动不同。且实验测得20°相位角串联泵的压力脉动率比0°的降低了34.05%，20°相位角串联泵可以降低0°相位角时大部分频率下的振动幅值。串联泵变相位角可以降低流体脉动导致的振动幅值，且变相位角并未对串联泵的出口流量带来影响。

Abstract

Aiming at the problems of pressure pulsation and vibration impact in large flow tandem pumps, a vibration reduction and noise reduction approach with variable phase angle for tandem external gear pumps is proposed. The mathematical equations for the instantaneous flow rate and pulsation non-uniformity coefficient of tandem external gear pumps are derived. The instantaneous flow pulsation of tandem external gear pumps with different phase angles is theoretically analyzed, and the variation law of pulsation non-uniformity coefficient when changing phase angle is analyzed. The relationship between flow pulsation and pressure pulsation is derived. For tandem pumps with actual phase differences of 0 ° and 20 °, the double throttle valve is installed at the outlet of the tandem pump to obtain pressure pulsation under different operating conditions. The derived pressure pulsation is consistent with the experimental values. The pressure pulsation is composed of a series of i-th harmonics, with the same frequency as the flow pulsation, but different amplitudes and phases. And the experimental results showed that the pressure pulsation rate of the 20 ° phase angle tandem pump decreased by 34.05% compared to 0 °. The 20 ° phase angle tandem pump can reduce the vibration amplitude at most frequencies at 0 ° phase angle. Changing the phase angle of a tandem pump can reduce the vibration amplitude caused by fluid pulsation, and the variable phase angle does not have an impact on the outlet flow rate of the tandem pump.

导出引用

展鹏1，强彦1,2，魏列江1,2，冯整顺1，罗小梅3. 串联齿轮泵变相位角脉动特性及振动抑制试验研究[J]. 振动与冲击, 2024, 43(10): 44-51

ZHAN Peng1，QIANG Yan1,2，WEI Liejiang1,2，FENG Zhengshun1，LUO Xiaomei3. Experimental study on the variable phase angle pulsation characteristics and vibration suppression of tandem gear pumps[J]. Journal of Vibration and Shock, 2024, 43(10): 44-51

参考文献

[1] MITHUN M G, KOUKOUVINIS P, KARATHANASSIS I K et al. Numerical simulation of three-phase flow in an external gear using immersed boundary approach[J]. Applied Mathematical Modelling, 2019,72(8.):682-699. [2] MANRING N D, KASARAGADDA S D, The Theoretical Flow Ripple of an External Gear Pump[J]. Journal of Dynamic Systems Measurement and Control, 2003, 125(3):263-276. [3] shhark® continuum® -Turolla shhark® http:// www.turolla-ocg.com. [4] LIU Dawei, BA Yanbo, REN Tingzhi, Flow fluctuation abat-ement of high-order elliptical gear pump by external noncircular gear drive[J]. Mechanism and Machine Theory, 2019, 134:338-348. [5] 刘大伟,巴延博.低脉动椭圆齿轮泵的多参变扭振模型及动态特性[J].振动与冲击,2020,39(03):88-94+103. LIU Dawei, BA Yanbo, Multi-parameter torsional vibration model and dynamic features of an elliptical gear pump with low flow fluctuation[J]. Journal of Vibration and Shock,2020, 39(03):88-94+103. [6] CAO Rui, LI Huacong, ZHU Jiaxing et al. Analysis of Pressure Pulsation in Aviation Gear Pump[C]. Journal of Physics: Conference Series,2021,1786(1): [7] RABSZTYN D, KLARECKI K, Experimental Tests of Pressure Pulsation of Gear Pumps[C]. Proceedings of the 13th International Scientific Conference: Computer Aided Engineering, Lecture Notes in Mechanical Engineering, 2017. [8] DU Ruilong , CHEN Yinglong, ZHOU Hua, Numerical analysis of the lubricating gap between the gear shaft and the journal bearing in water hydraulic internal gear pumps[J]. Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, 2018. [9] 宋希杰,刘超,杨帆等.进水漩涡诱发轴流泵压力脉动的试验研究[J].振动与冲击, 2018,37(17):25-31+62. SONG Xijie, LIU Chao, YANG Fan et al.Tests for inlet vortex-induced pressure fluctuation of an axial flow pump [J]. Journal of Vibration and Shock, 2018,37(17):25-31+62. [10] 陈宗斌,何琳,廖健等.双泵源电液舵机线谱噪声控制[J].国防科技大学学报,2019,41(02):170-175. CHEN Zongbin, HE Lin, LIAO Jian, XU Rongwu, Linear spectrum noise control of electro-hydraulic steering gear with double pump source[J]. Journal of National University of Defense Technology, 2019, 41(2): 170-175. [11] 徐兵,宋月超,杨华勇.复杂出口管道柱塞泵流量脉动测试原理[J].机械工程学报,2012,48(22):162-167+176. XU Bing, SONG Yuechao, YANG Huayong, Investigation of Test Principle of Flow Ripple Generated by Piston Pump with Complicated Pipe[J]. Journal of Mechanical Engineering, 2012, 48(22):162-167+176. [12] XU Bing, MA Jien, LIN Jianjie, Computation flow rate feedback and control method in hydraulic elevators[J]. Chinese Journal of Mechanical Engineering, 2005, 18(4):4. [13] XU Bing, SONG Yuechao, YANG Huayong. Pre-compression volume on flow ripple reduction of a piston pump[J]. Chinese Journal of Mechanical Engineering, 2013, 26(6):1259-1266. [14] XU Bing, YE Shaogan, ZHANG Junhui, Effects of index angle on flow ripple of a tandem axial piston pump[J]. Journal of Zhejiang University-SCIENCE A, 2015, 16(5):404-417. [15] 陈贵全,熊瑞平,王波等.基于模糊控制的双泵合流液压系统流量脉动特性仿真[J].液压与气动,2020(09):93-99. CHEN Guiquan, XIONG Ruiping, WANG Bo et al. Simulation on Flow Pulsation Characteristics of Dual-pump ConfluenceHydraulic System Based on Fuzzy Control[J]. Chinese Hydraulics & Pneumatics, 2020(09):93-99. [16] 魏列江,李芬芬,项可等.双级并联齿轮泵不同转速下流动特性的研究[J].液压与气动,2020(07):55-61. WEI Liejiang, LI Fenfen, XIANG Ke et al. Studv on Flow Characteristics of Two-stage Parallel External Gear Pump at Different Speeds[J]. Chinese Hydraulics & Pneumatics, 2020(07):55-61. [17] 胡跃飞. 双级升压内啮合齿轮泵内部流场及力学特性研究[D].辽宁工程技术大学,2019. HU Yuefei, Study on Internal Flow Field and Mechanical Characteristics of Two-stage Boost Internal Meshing Gear Pump[D]. Liaoning Technical University, 2019. [18] 魏小玲,冯永保,刘珂等.基于EEMD的圆弧齿轮泵空化流动及振动特性试验研究[J].振动与冲击,2022,41(10):90-98. WEI Xiaoling, FENG Yongbao, LIU Ke et al. Experimental study on the cavitation flow and vibration characteristics of circular arc gear pumps based on EEMD[J]. Journal of Vibration and Shock,2022,41(10):90-98. [19] 刘思远,王志伟,姜万录等.变转速工况下液压泵故障振动信号的角域烈度特征提取方法[J].振动与冲击,2020,39(17):142-149. LIU Siyuan, WANG Zhiwei, JIANG Wanlu et al. Angular domain intensity feature extraction method for fault vibration signals of hydraulic pump under variable rotating speed condition[J]. Journal of Vibration and Shock,2020,39(17):142-149. [20]王涛,李艾华,王旭平等.基于SVDD与距离测度的齿轮泵故障诊断方法研究[J].振动与冲击,2013,32(11):62-65. WANG Tao, LI Aihua, WANG Xuping et al. Fault diagnosis method for a gear pump based on SVDD and distance measure[J]. Journal of Vibration and Shock, 2013,32(11):62-65.