Flow Field Analysis and Optimization for Internal Channel of Hydraulic Manifold Block in Lower Extremity Exoskeleton Robot

WANG Haibo; FAN Shuyuan; ZHANG Long

doi:10.3969/j.issn.0258-2724.20170879

Volume 54 Issue 4

Jul. 2019

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Journal of Southwest Jiaotong University > 2019 > 54(4): 848-854.

WANG Haibo, FAN Shuyuan, ZHANG Long. Flow Field Analysis and Optimization for Internal Channel of Hydraulic Manifold Block in Lower Extremity Exoskeleton Robot[J]. Journal of Southwest Jiaotong University, 2019, 54(4): 848-854. doi: 10.3969/j.issn.0258-2724.20170879

Citation:

WANG Haibo, FAN Shuyuan, ZHANG Long. Flow Field Analysis and Optimization for Internal Channel of Hydraulic Manifold Block in Lower Extremity Exoskeleton Robot[J]. Journal of Southwest Jiaotong University, 2019, 54(4): 848-854. doi: 10.3969/j.issn.0258-2724.20170879

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Flow Field Analysis and Optimization for Internal Channel of Hydraulic Manifold Block in Lower Extremity Exoskeleton Robot

doi: 10.3969/j.issn.0258-2724.20170879

Received Date: 21 Dec 2017
Rev Recd Date: 02 Mar 2018

Available Online: 21 Mar 2018

Publish Date: 01 Aug 2019

Abstract

Abstract

In order to deal with the excessive temperature rise and noise of the hydraulic power unit in the lower extremity exoskeleton robot, ANSYS Fluent software was used for the simulation tests of Z-channel and cross-channel, which are the main components of internal flow channel of the hydraulic manifold block. Furthermore, 5 groups of simulation test with different sizes are designed to analyze how the stability of flow velocity and pressure loss change with channel dimension. The simulation test shows that when the channel diameter is 5 mm, the pressure loss of the cross-channel increases with eccentricity between the inlet and outlet; and the stability of flow velocity is the best when eccentricity is 1.25 mm. The pressure loss of Z-channel reaches the minimum when the distance between inlet and outlet is 17 mm, and the stability of fluid velocity increases with the distance. The optimized prototype test shows that the maximum temperature of the hydraulic manifold block was decreased by 3.3 ℃ and the maximum noise was decreased by 7.6 dB.
- lower extremity exoskeleton,
- hydraulic power unit,
- hydraulic manifold block,
- pressure loss,
- hydraulic noise

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STEGER R, KIM S H, KAZEROONI H. Control scheme and networked control architecture for the Berkeley lower extremity exoskeleton (BLEEX)[C]// IEEE International Conference on Robotics and Automation. [S.l.]: IEEE, 2006: 3469-3476

ZOSS A B, KAZEROONI H, CHU A. Biomechanical design of the Berkeley lower extremity exoskeleton (BLEEX)[J]. IEEE/ASME Transactions on Mechatronics, 2006, 11(2): 128-138. doi: 10.1109/TMECH.2006.871087

周加永,张昂,莫新民,等. 液压驱动型负重外骨骼机器人液压系统设计[J]. 机床与液压,2016(21): 30-34. doi: 10.3969/j.issn.1001-3881.2016.21.007

ZHOU Jiayong, ZHANG Ang, MO Xinmin, et al . Hydraulic system design of hydraulic-driven load exoskeleton robot[J]. Machine Tool & Hydraulics, 2016(21): 30-34. doi: 10.3969/j.issn.1001-3881.2016.21.007

AMUNDSON K, RAADE J, HARDING N, et al. Hybrid hydraulic-electric power unit for field and service robots[C]// IEEE/RSJ International Conference on Intelligent Robots and Systems. [S.l.]: IEEE, 2005: 3453-3458

WANG Zhixin. Raytheon launched XOS2 second-generation exoskeleton device[J]. Light Weapons, 2010, 24: 44.

GHAN J, STEGER R, KAZEROONI H. Control and system identification for the Berkeley lower extremity exoskeleton (BLEEX)[J]. Advanced Robotics, 2006, 20(9): 989-1014. doi: 10.1163/156855306778394012

王超,王玉林,宋慧新. 人体助力行走机器人关键技术分析[J]. 车辆与动力技术,2014,1(1): 53-57.

WANG Chao, WANG Yulin, SONG Huixin. Key technologies analysis of human stepped power assist device[J]. Vehicle & Power Technology, 2014, 1(1): 53-57.

高殿荣,王益群. 液压集成块内弯曲流道流场数值计算与分析[J]. 机床与液压,2001(6): 34-35. doi: 10.3969/j.issn.1001-3881.2001.06.014

GAO Dianrong, WANG Yiqun. Numerical calculation and analysis of curved flow field in hydraulic integration block[J]. Machine Tool & Hydraulics, 2001(6): 34-35. doi: 10.3969/j.issn.1001-3881.2001.06.014

林义忠,陈丽莉,张忠南. 液压集成块典型转弯孔道流场仿真分析[J]. 机床与液压,2012(5): 134-137. doi: 10.3969/j.issn.1001-3881.2012.05.042

LIN Yizhong, CHEN Lili, ZHANG Zhongnan. Simulation and analysis of flow field of typical turning channel inside hydraulic manifold block[J]. Machine Tool & Hydraulics, 2012(5): 134-137. doi: 10.3969/j.issn.1001-3881.2012.05.042

林义忠,唐忠盛,黄光永,等. 液压集成块直角孔道局部压力损失的仿真及实验研究[J]. 机床与液压,2012(23): 38-41. doi: 10.3969/j.issn.1001-3881.2012.23.010

LIN Yizhong, TANG Zhongsheng, HUANG Guangyong, et al. Simulation and experimental study of local pressure loss at right angle channel inside hydraulic manifold blocks[J]. Machine Tool & Hydraulics, 2012(23): 38-41. doi: 10.3969/j.issn.1001-3881.2012.23.010

吴正坤,赵毅红,吕宵宵,等. 基于Fluent液压集成块内部流场数据仿真[J]. 机械工程与自动化,2014(6): 76-77,80. doi: 10.3969/j.issn.1672-6413.2014.06.031

WU Zhengkun, ZHAO Yihong, LÜ Xiaoxiao, et al. Fluent-based numerical simulation of internal flow field of hydraulic manifold[J]. Mechanical Engineering and Automation, 2014(6): 76-77,80. doi: 10.3969/j.issn.1672-6413.2014.06.031

付永领, 阳加远, 朱德明. 基于Fluent的电液泵流场与温度场有限元分析[J]. 北京航空航天大学学报, 2017, 43(8): 1647-1653

FU Yongling, YANG Jiayuan, ZHU Deming. Finite element analysis of flow field and temperature field of electro-hydraulic pump by Fluent[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(8): 1647-1653

吴健兴,路芳,吴昌锋. 基于CFD的液压多路阀阀后压力补偿回路流道流场仿真研究[J]. 液压气动与密封,2017,37(5): 6-7, 12. doi: 10.3969/j.issn.1008-0813.2017.05.002

WU Jianxing, LU Fang, WU Changfeng. Research on the flow-channel's flow-field of the pressure-compensated circuit for the load sensitive multi-way valve based on CFD[J]. Hydraulics Pneumatics & Seals, 2017, 37(5): 6-7, 12. doi: 10.3969/j.issn.1008-0813.2017.05.002

侯占勇,胡军科,周创辉. 混凝土泵高低压切换阀典型管网液流特性[J]. 长安大学学报(自然科学版),2014(6): 168-174. doi: 10.3969/j.issn.1671-8879.2014.06.025

HOU Zhanyong, HU Junke, ZHOU Chuanghui. Flowing characteristics of typical pipeline network of pressure switching valve block in concrete pump[J]. Journal of Chang'an University (Natural Science Edition), 2014(6): 168-174. doi: 10.3969/j.issn.1671-8879.2014.06.025

田瑞峰, 刘平安. 传热与流体流动的数值计算[M]. 哈尔滨: 哈尔滨工程大学出版社, 2015: 211-234

任国志. 某船舶操舵系统液压噪声控制的理论建模与仿真研究[D]. 武汉: 华中科技大学, 2006

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Flow Field Analysis and Optimization for Internal Channel of Hydraulic Manifold Block in Lower Extremity Exoskeleton Robot

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