Please wait a minute...
工程设计学报
Chinese Journal of Engineering Design  2024, Vol. 31 Issue (2): 160-167    DOI: 10.3785/j.issn.1006-754X.2024.04.114
Mechanical Optimization Design     
Low pulsation structural optimization design of swashplate axial piston pump based on multi-objective genetic algorithm
Haibo XIE1,2(),Haocen HONG1(),Baicun WANG1,2,WEI JIANG3,Huayong YANG1,2
1.Institute of Advanced Machines, Zhejiang University, Hangzhou 310014, China
2.State Key Laboratory of Fundamental Components of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310058, China
3.State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
Download: HTML     PDF(3565KB)
Export: BibTeX | EndNote (RIS)      

Abstract  

Because of the asymmetric structure of axial piston pump, its output pressure and output flow have pulsating characteristics, which affects the output stability and reliability of hydraulic system. Therefore, an optimization design method of low pulsation structure of swashplate axial piston pump based on multi-objective genetic algorithm is proposed. Firstly, the CFD (computational fluid dynamics) simulation analysis method was used to analyze the generation mechanism of pressure-flow pulsation at the upper/lower dead points of the axial piston pump; secondly, the influence of damping groove structural parameters on the output pressure-flow pulsation of axial piston pump was analyzed, and a multi-objective optimization model of damping groove structure was constructed; finally, the structure of the low pulsation damping groove was solved. The optimized structural parameters were as follows: the damping groove radius was 2.21 mm, the damping groove length was 10.32 mm, and the damping groove deflection angle was 16.54°. After optimization, the pressure pulsation rate was 0.59%, which was reduced by 0.16% compared to the pre-optimization value of 0.75%, and the pulsation amplitude was 0.25 MPa. The flow pulsation rate was 12.02%, which was reduced by 43.59% compared to the pre-optimization rate of 55.61%. The research results provide effective theoretical support and practical guidance for the optimal design of low pulsation structure of axial piston pump.

Key words： axial piston pump      valve plate      damping groove      multi-objective optimization      low pulsation     
Received: 17 February 2024      Published: 26 April 2024
CLC:  TQ 021.1  
Corresponding Authors: Haocen HONG     E-mail: krdp_pump20@foxmail.com;honghaocen@zju.edu.cn
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Haibo XIE
Haocen HONG
Baicun WANG
WEI JIANG
Huayong YANG
Cite this article:

Haibo XIE,Haocen HONG,Baicun WANG,WEI JIANG,Huayong YANG. Low pulsation structural optimization design of swashplate axial piston pump based on multi-objective genetic algorithm. Chinese Journal of Engineering Design, 2024, 31(2): 160-167.

URL:

https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2024.04.114     OR     https://www.zjujournals.com/gcsjxb/Y2024/V31/I2/160


基于多目标遗传算法的斜盘式轴向柱塞泵低脉动结构优化设计

由于轴向柱塞泵的非对称结构特性，其输出压力和输出流量存在脉动特性，对液压系统的输出稳定性和可靠性造成影响，因此提出了一种基于多目标遗传算法的斜盘式轴向柱塞泵低脉动结构优化设计方法。首先，通过CFD（computational fluid dynamics，计算流体动力学）仿真分析方法，对轴向柱塞泵上/下死点位的压力-流量脉动的产生机理进行了分析；其次，对阻尼槽结构参数对轴向柱塞泵输出压力-流量脉动的影响规律进行了分析，构建了阻尼槽结构的多目标优化模型；最后，求解了低脉动阻尼槽结构。优化后的结构参数：阻尼槽半径为2.21 mm，阻尼槽长度为10.32 mm，阻尼槽错配角为16.54°。优化后压力脉动率为0.59%，相比于优化前的0.75%降低了0.16%，脉动幅值为0.25 MPa；优化后流量脉动率为12.02%，相比于优化前的5.61%降低了43.59%。研究结果为轴向柱塞泵低脉动结构的优化设计提供了有效的理论支持和实践指导。


关键词： 轴向柱塞泵,  配流盘,  阻尼槽,  多目标优化,  低脉动 
Fig.1 Structural profile of rotor of axial piston pump
Fig.2 Structure of mating surface of valve plate and cylinder body of axial piston pump
Fig.3 Flow field division of axial piston pump
交界面边界类型
吸/排油流域与配流腰型窗口流域交界面inlet_mgi_vp
配流腰型窗口流域与配流副间隙油膜交界面vp_mgi_film
配流副间隙油膜与缸体柱塞孔顶部窗口交界面film_mgi_piston
柱塞流域底部窗口与滑靴流域顶部窗口交界面piston_mgi_shoe
Table 1 Setting of interaction boundary of flow field model of axial piston pump
Fig.4 Outlet flow curve of axial piston pump
Fig.5 Schematic of movement starting position of piston cavity
Fig.6 Inlet flow curve of piston pump and pressure curve of piston cavity in one pulsating period
Fig.7 Pressure curve of single piston cavity of axial piston pump
Fig.8 Cloud map of pressure variation in pre-boost area of axial piston pump
Fig.9 Structure of valve plate
Fig.10 Cloud map of pressure distribution in full contact between damping groove and piston cavity (spindle rotating 21°)
Fig.11 Cloud map of turbulent kinetic energy at reinforcement of valve plate (spindle rotating 21°)
Fig.12 Schematic of key structural parameters of cylindrical damping groove
Fig.13 Optimization process of structural parameter of damping groove
Fig.14 Outlet pressure curves of axial piston pump under different damping groove radius
Fig.15 Outlet flow curves of axial piston pump under different damping groove radius
Fig.16 Outlet pressure curves of axial piston pump under different damping groove lengths
Fig.17 Outlet flow curves of axial piston pump under different damping groove lengths
Fig.18 Outlet flow curves of axial piston pump under different damping groove deflection angles
Fig.19 Outlet pressure curves of axial piston pump before and after optimization
Fig.20 Outlet flow curves of axial piston pump before and after optimization
[1]   HONG H C， ZHANG B， YU M， et.al. Analysis and optimization on U-shaped damping groove for flow ripple reduction of fixed displacement axial-piston pump［J］. International Journal of Fluid Machinery and Systems， 2020， 13（1）： 126-135.
[2]   HONG H C， ZHAO C X， ZHANG B， et.al. Flow ripple reduction of axial-piston pump by structure optimizing of outlet triangular damping groove［J］. Processes， 2020， 8（12）： 1664-1679.
[3]   马吉恩. 轴向柱塞泵流量脉动及配流盘优化设计研究［D］.杭州：浙江大学，2009.
MA J E. Study on flow pulsation and optimal design of valve plate of axial piston pump［D］. Hangzhou： Zhejiang University， 2009.
[4]   张斌，程国赞，洪昊岑，等. 基于SVR的轴向柱塞泵配流盘三角槽结构优化［J］.吉林大学学报（工学版），2021，51（4）： 1213-1221.
ZHANG B， CHENG G Z， HONG H C， et al. Structure optimization of triangular groove of valve plate in axial piston pump based on SVR［J］. Journal of Jilin University （Engineering and Technology Edition）， 2021， 51（4）： 1213-1221.
[5]   梁德栋，李毅波，潘阳，等. 柱塞泵多目标优化设计及CFD仿真分析［J］.计算力学学报，2018，35（3）：350-355.
LIANG D D， LI Y B， PAN Y， et al. Multi-objective optimization design and CFD simulation analysis of piston pump［J］. Chinese Journal of Computational Mechanics， 2018， 35（3）： 350-355.
[6]   YE W X， WANG H Y. The influence of cross angle on the flow ripple of axial piston pumps by CFD simulation［J］. Applied Mechanics and Materials， 2012， 220-223： 1675-1678.
[7]   翟江，李小明，黎旖，等. CFD技术在轴向柱塞泵和马达开发中的应用［J］.液压气动与密封，2015，35（10）：72-75. doi：10.3969/j.issn.1008-0813.2015.10.024
ZHAI J， LI X M， LI Y， et.al. Application of CFD technology for axial piston machines development［J］. Hydraulics Pneumatics & Seals， 2015， 35（10）： 72-75.
doi: 10.3969/j.issn.1008-0813.2015.10.024
[8]   谢世聪. 基于Pumplinx轴向柱塞泵配流盘减震槽参数的优化分析［D］.兰州：兰州理工大学， 2019.
XIE S C. Optimization analysis of damping groove parameters of valve plate of axial piston pump based on Pumplinx［D］. Lanzhou： Lanzhou University of Technology， 2019.
[9]   古帆. 双卸荷槽式轴向柱塞泵配流盘结构优化及关键元件有限元分析［D］.阜新：辽宁工程技术大学，2017.
GU F. Optimization of valve plate structure and finite element analysis of key components of axial piston pump with double unloading groove［D］. Fuxin： Liaoning Technical University， 2017.
[10]   李守俊. 基于CFD的轴向柱塞泵的配流特性和配流盘优化设计研究［D］.合肥：合肥工业大学， 2013.
LI S J. Study on valve distribution characteristics and optimal design of valve plate of axial piston pump based on CFD［D］. Hefei： Hefei University of Technology， 2013.
[11]   王毅翔. 轴向柱塞泵配流盘阻尼槽特性分析及优化设计［D］.杭州：浙江大学， 2014.
WANG Y X. Characteristic analysis and optimal design of damping groove of valve plate of axial piston pump ［D］. Hangzhou： Zhejiang University， 2014.
[12]   米鑫，李虹，郭彦青. 基于线性回归的单柱塞泵单向阀参数优化［J］.工程设计学报， 2022， 29（6）：705-712. doi：10.3785/j.issn.1006-754X.2022.00.089
MI X， LI H， GUO Y Q. Parameter optimization of single piston pump check valve based on linear regression［J］. Chinese Journal of Engineering Design， 2022， 29（6）： 705-712.
doi: 10.3785/j.issn.1006-754X.2022.00.089
[13]   王震，聂松林，尹方龙，等. 基于Pumplinx纯水轴向柱塞泵配流盘卸荷槽结构的仿真分析［J］.液压与气动，2016（2）：11-16. doi：10.11832/j.issn.1000-4858.2016.02.002
WANG Z， NIE S L， YIN F L，et al. The simulation and analysis of silencing groove structure of valve plate within water hydraulic axial piston pump based on Pumplinx［J］. Chinese Hydraulics & Pneumatics， 2016（2）： 11-16.
doi: 10.11832/j.issn.1000-4858.2016.02.002
[14]   戴海曙，郭志敏，翟江.基于NSGA-Ⅱ的柱塞泵阻尼槽多目标参数优化［J］.液压与气动，2023，47（8）：26-33.
DAI H S， GUO Z M， ZHAI J. Multi-objective parameter optimiza tion of piston pump damping groove based on NSGA-Ⅱ［J］. Chinese Hydraulics & Pneumatics， 2023， 47（8）： 26-33.
[15]   张静，谢世聪，杨馥霖，等.基于PumpLinx柱塞泵配流盘三角槽结构的优化［J］.液压气动与密封，2019，39（12）：14-19. doi：10.3969/j.issn.1008-0813.2019.12.004
ZHANG J， XIE S C， YANG F L， et al. The optimization of axis pump valve plate triangular groove structure based on pumplinx［J］. Hydraulics Pneumatics & Seals， 2019， 39（12）： 14-19.
doi: 10.3969/j.issn.1008-0813.2019.12.004
[16]   郭志敏，戴海曙，翟江.基于FMI的轴向柱塞泵分布式联合仿真与动态优化［J］.工程设计学报， 2023， 30（4）：495-502. doi：10.3785/j.issn.1006-754X.2023.00.058
GUO Z M， DAI H S， ZHAI J. Distributed co-simulation and dynamic optimization of axial piston pump based on FMI［J］. Chinese Journal of Engineering Design， 2023， 30（4）： 495-502.
doi: 10.3785/j.issn.1006-754X.2023.00.058
[1] Zhimin GUO,Haishu DAI,Jiang ZHAI,Haocen HONG,Baicun WANG,Haibo XIE,Huayong YANG. Distributed co-simulation and dynamic optimization of axial piston pump based on FMI[J]. Chinese Journal of Engineering Design, 2023, 30(4): 495-502.
[2] Fangjian DOU,Qingying QIU,Cheng GUAN,Jinjie SHAO,Haifeng WU. Optimization design of acceleration and deceleration curve of winding machine with large moment of inertia[J]. Chinese Journal of Engineering Design, 2023, 30(4): 503-511.
[3] Jiang LIU,Zheng-ming XIAO,Long-long ZHANG,Wei-biao LIU. Transmission accuracy reliability analysis and parameter optimization of RV reducer considering cycloid gear wear[J]. Chinese Journal of Engineering Design, 2022, 29(6): 739-747.
[4] Zhi-qiang NING,Li-xin WEI,Long QUAN,Mei-qing ZHAO,You-shan GAO. Anti-interference control and parallel tuning method for variable displacement asymmetric axial piston pump[J]. Chinese Journal of Engineering Design, 2022, 29(4): 401-409.
[5] Qin LI,Ying-qi JIA,Yu-feng HUANG,Gang LI,Chuang YE. A multi-objective trajectory optimization algorithm for industrial robot[J]. Chinese Journal of Engineering Design, 2022, 29(2): 187-195.
[6] WEI Wei, LIN Zai-sheng. Research on optimization design method of customized product based on RIR-MOO[J]. Chinese Journal of Engineering Design, 2020, 27(5): 592-599.
[7] SU Fang, LUO Ru-nan, LIU Yan-ming, WANG Chen-sheng. Design and research on biaxial linkage feed system based on multi-objective optimization[J]. Chinese Journal of Engineering Design, 2020, 27(4): 456-462.
[8] GAO Qi-sheng, ZHU Xing-hua, YU Yan-kai, ZHENG Rong. Multi-objective optimal design of UUV pressure structure[J]. Chinese Journal of Engineering Design, 2020, 27(2): 232-238.
[9] ZHANG Shuai, HAN Jun, TU Qun-zhang, YANG Xiao-qiang, YANG Xuan. Multi-objective optimization design of deployable mechanism of scissor folding bridge based on GA-NLP[J]. Chinese Journal of Engineering Design, 2020, 27(1): 67-75.
[10] WANG Zhe, CHEN Yong, CAO Zhan, LI Guang-xin, ZUO Kou-cheng. Research on vibration and noise reduction of two-speed transmission of pure electric vehicle[J]. Chinese Journal of Engineering Design, 2019, 26(3): 280-286.
[11] YANG Chen-guang, SHAO Bao-dong, WANG Li-feng, YANG Yang. Multi-objective optimization design for silicon substrate microchannel heat sink based on thermal resistance network model[J]. Chinese Journal of Engineering Design, 2018, 25(4): 426-433.
[12] DENG Hai-shun, HUANG Kun, HUANG Ran, WANG Chuan-li, DENG Yue-fei. Swash plate moment property modeling and analysis of balanced two-ring axial piston pump[J]. Chinese Journal of Engineering Design, 2016, 23(6): 592-599.
[13] YANG Shao-yong, LEI Fei, CHEN Yuan. Structure optimization of a carbon fiber reinforced composite suspension control arm based on the lay up design features[J]. Chinese Journal of Engineering Design, 2016, 23(6): 600-605,619.
[14] WU Si-min, MENG Wen-jun, LI Shu-jun, WANG Yao, XU Cheng-gong. Design and optimization of a novel magnetorheological brake with double coils placed on the side housing[J]. Chinese Journal of Engineering Design, 2016, 23(5): 453-460.
[15] . Multi-objective optimization software development and application[J]. Chinese Journal of Engineering Design, 2015, 22(3): 262-268.