作者机构：
[贺尚红; 肖仕轩; 刘祥] Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha;Hunan;410114, China;[刘光明; 田清] Hunan Oil Pump Co., Ltd., Hengyang;421400, China
期刊：
Journal of Applied Science and Engineering,2017年20(3):367-372 ISSN：1560-6686
通讯作者：
He, Shang-Hong(heshanghong@126.com)
作者机构：
[Wang, Wen; He, Shang-Hong; Yin, Yan-Mei] Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha, 410114, China;[Liu, Guang-Ming] Hunan Oil Pump Co., LTD, Hengyang, 421400, China
通讯机构：
Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha, China
摘要：
Oil pump models with different gear tooth shapes were established and the internal flow field simulation were conducted by utilizing Pumplinx. Then the characteristics of steady state flux and flow pulsation were analyzed. The research shows that: compared with straight gear pumps, the flow pulsation of other toothed gear pumps is much lower, although they have lower flow at low and medium speed. Especially the flow pulsation of dislocation gear pumps is much lower than straight gear pumps. It decreased by 27% at 1100 rpm and 35% at 2700 rpm, compared with straight gear pumps. Finally the straight gear pump flow is tested experimentally, and the experimental results match the simulation very well. This proves that the internal flow field models are correct and useful in technically supporting the oil pump development.
作者机构：
[贺尚红; 王文] Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha, China;[熊宇维] Department of Mechanical Engineering, Hunan Industry Polytechnic, Changsha, China
通讯机构：
Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha, China
摘要：
Based on the theory of dynamic vibration absorber, a class of structure resonators equipped with additional vibrators is put forward to suppress fluid pulsation which causes system unstable or reduces work performance. Working principle of resonators is explained from mechanics and three kinds of elements are used to work as additional vibrators, namely round metal sheet, rectangular metal sheet, round rubber membrane. Multiple vibrators are designed into one resonator to damp the pressure pulsation in system over a wide range of frequency. Mathematical models of resonators based on sheet elements are gained through analyzing the vibration characteristics of sheets in fluid. Lumped parameter method is used to study the attenuation characteristics which are based on matrix model of the entire hydraulic system. Simulations are conducted and results guide the determination of configuration parameters of experimental prototypes. Experimental tests are carried out on prototypes and results show good attenuation performance, especially near the resonant frequencies of sheet/membrane elements in fluid.
作者机构：
[贺尚红; 王文] School of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha, China;[王守兵] China South Locomotive &, Rolling Stock Co. Ltd., Zhuzhou, China
通讯机构：
School of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha, China
作者机构：
[He, Zhiyong; He, Qinghua] College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China;[He, Shanghong; He, Zhiyong] College of Automobile and Mechanism Engineering, Changsha University of Science and Technology, Changsha 410076, China
期刊：
International Journal of Control and Automation,2014年7(12):165-176 ISSN：2005-4297
作者机构：
[He, Xiang-yu] State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, China;[Yang, Yijiao; He, Shanghong; He, Xiang-yu] Key Lab. of Lightweight and Reliability Technology for Engineering Vehicle, Education Department of Hunan Province, Changsha University of Science and Technology, Changsha, Hunan, China
关键词：
Auto-regressive with extra outputs (ARX) model;Fault diagnosis;Fuzzy logic;Hydraulic system;Radial basis function neural networks
作者机构：
[He, Xiangyu] College of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha, Hunan, China;[He, Shanghong] State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, China
