Optimization Algorithm and Joint Simulation to Micro Thermal Deformation Using Temperature Measurement in the Orifice of Hydraulic Valve

doi:10.3390/pr8091136

CORC > 兰州理工大学 > 兰州理工大学 > 科学技术处（军民融合领导小组办公室）

	Optimization Algorithm and Joint Simulation to Micro Thermal Deformation Using Temperature Measurement in the Orifice of Hydraulic Valve
	Chen, Qianpeng 1,2; Ji, Hong 1,2; Zhao, Hongke 1,2; Zhao, Jing 1,2
刊名	PROCESSES
	2020-09-01
卷号	8 期号:9
关键词	hydraulic valve orifice temperature measurement micro thermal deformation optimization algorithm joint simulation
DOI	10.3390/pr8091136
英文摘要	When exposed to viscous heating, hydraulic valve orifices experience thermal deformation, which causes spool clamping and actuator disorder. Quantitative research on thermal deformation can help reveal the micro-mechanism of spool clamping. In this study, miniature thermocouples are embedded into a valve orifice with an opening size of 1 mm to measure temperature distribution. An optimization algorithm based on measurement data (M-OA) for the thermal deformation of the valve orifice is proposed. The temperature and thermal deformation of the valve orifice are calculated through Fluent and Workbench joint simulation, with the measurement data serving as boundary conditions. Results show that, for a valve orifice with a valve wall length of 18 mm, when the temperature of the sharp edge is at 60 degrees C, thermal deformation measures 7.7 mu m via observation and 7.62803 mu m via M-OA, indicating that the M-OA method is reliable. The results of the joint simulation can be accepted because measurements of temperature reached an accuracy rate of 95%, and that of deformation reached 82.7%. A large drop in pressure led to a rapid increase in temperature, causing serious thermal deformation of the valve orifice. With an inlet pressure of 3 MPa, the temperature of the sharp edge reached 72.9 degrees C within 110 min, and radial thermal deformation can reach 8.3 mu m. Such deformation poses great risk of spool clamping for a spool valve of phi 36 mm.
WOS研究方向	Engineering
语种	英语
出版者	MDPI
WOS记录号	WOS:000580795800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155108]
专题	科学技术处（军民融合领导小组办公室）能源与动力工程学院
作者单位	1.Lanzhou Univ Technol, Energy & Power Engn Sch, Lanzhou 730050, Peoples R China; 2.Gansu Hydraul & Pneumat Engn Technol Res Ctr, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qianpeng,Ji, Hong,Zhao, Hongke,et al. Optimization Algorithm and Joint Simulation to Micro Thermal Deformation Using Temperature Measurement in the Orifice of Hydraulic Valve[J]. PROCESSES,2020,8(9).
APA	Chen, Qianpeng,Ji, Hong,Zhao, Hongke,&Zhao, Jing.(2020).Optimization Algorithm and Joint Simulation to Micro Thermal Deformation Using Temperature Measurement in the Orifice of Hydraulic Valve.PROCESSES,8(9).
MLA	Chen, Qianpeng,et al."Optimization Algorithm and Joint Simulation to Micro Thermal Deformation Using Temperature Measurement in the Orifice of Hydraulic Valve".PROCESSES 8.9(2020).