Dynamic Inverse Compensation Method of Flow Rate Dead-zone of Electro-hydrostatic Actuator Considering Viscosity-temperature Characteristics of Oil

doi:10.3969/j.issn.1000-1093.2022.02.009

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	Dynamic Inverse Compensation Method of Flow Rate Dead-zone of Electro-hydrostatic Actuator Considering Viscosity-temperature Characteristics of Oil
	Han, Xiaoxia 1; Feng, Yongbao 1; Xie, Jian 1; Wei, Liejiang 2; Wang, Yaqiang 3; Wei, Xiaoling 1
刊名	Binggong Xuebao/Acta Armamentarii
	2022-02-01
卷号	43 期号:2 页码:316-327
关键词	Actuators Hydraulics Inverse problems Viscosity Compensation method Dead zones Dynamic inverse compensation method Electro-hydrostatic-actuators Flow rate dead-zone Inverse compensation Oil temperature Temperature characteristic Viscosity-temperature Viscosity-temperature characteristic
ISSN号	1000-1093
DOI	10.3969/j.issn.1000-1093.2022.02.009
英文摘要	The highly integrated electro-hydrostatic actuator (EHA) has been reduced in size and weight, but the poor heat dissipation and rapid increase in system oil temperature have been brought, thus leading to the time-varying characteristics of flow rate dead-zone of EHA resulting from the reduction of oil viscosity. This makes accurate control of EHA more difficult. For the above problems, a mathematical model of EHA flow rate dead-zone is established, in which the viscosity-temperature characteristics of the oil are considered, and the variation law of flow rate dead-zone is analyzed. Furthermore, a dead-zone dynamic inverse compensation method for flow rate based on the system model information is proposed. The compensation effects of proposed method at different speeds and loads are compared and analyzed, and verified through experiment. The results show that the flow rate dead-zone of EHA increases with the rise in temperature, and the proposed dynamic inverse compensation method can compensate the flow rate dead-zone of EHA under light load conditions, which is conducive to improving the control performance of the system. © 2022, Editorial Board of Acta Armamentarii. All right reserved.
语种	中文
出版者	China Ordnance Industry Corporation
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157886]
专题	兰州理工大学
作者单位	1.College of Missile Engineering, Rocket Force University of Engineering, Xi'an; 710025, China; 2.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.China National Heavy Machinery Research Institute Co., Ltd., Xi'an; 710032, China
推荐引用方式 GB/T 7714	Han, Xiaoxia,Feng, Yongbao,Xie, Jian,et al. Dynamic Inverse Compensation Method of Flow Rate Dead-zone of Electro-hydrostatic Actuator Considering Viscosity-temperature Characteristics of Oil[J]. Binggong Xuebao/Acta Armamentarii,2022,43(2):316-327.
APA	Han, Xiaoxia,Feng, Yongbao,Xie, Jian,Wei, Liejiang,Wang, Yaqiang,&Wei, Xiaoling.(2022).Dynamic Inverse Compensation Method of Flow Rate Dead-zone of Electro-hydrostatic Actuator Considering Viscosity-temperature Characteristics of Oil.Binggong Xuebao/Acta Armamentarii,43(2),316-327.
MLA	Han, Xiaoxia,et al."Dynamic Inverse Compensation Method of Flow Rate Dead-zone of Electro-hydrostatic Actuator Considering Viscosity-temperature Characteristics of Oil".Binggong Xuebao/Acta Armamentarii 43.2(2022):316-327.