Simulation of thermal characteristics of high speed spindle considering air gap variation

doi:10.3785/j.issn.1008-973X.2016.05.018

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Simulation of thermal characteristics of high speed spindle considering air gap variation
	Li, Te 1,2; Rui, Zhi-Yuan 1,2; Lei, Chun-Li 1,2; Guo, Jun-Feng 1,2; Hu, Chi-Bing 1,2
刊名	Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)
	2016-05-01
卷号	50 期号:5 页码:941-948
关键词	Expansion Heat transfer coefficients Machining Speed Stators Temperature distribution Thermal expansion Air-gaps Calculation results Centrifugal Forces High-speed spindle Structure variation Thermal characteristics Thermal deformation Thermal displacements
ISSN号	1008973X
DOI	10.3785/j.issn.1008-973X.2016.05.018
英文摘要	A viewpoint on the centrifugal expansion and thermal expansion which would affect the convection heat transfer between stator and rotor of high speed spindle was proposed to solve the problem that the thermal characteristics caused by structure variation of high speed spindle would be changed under high rotation speed. Based on the theory of elastic mechanics, radical expansion and air gap changes which caused by the radical expansion were calculated considering the two expansions acting on the stator and rotor of spindle. Variation rules of air gap and convection heat transfer coefficient that affected by the centrifugal force were obtained according to the convection heat transfer theory. The calculation results show that the air gap length decreases with the expansion of the rotor, and the reduction is 37.7% of the design value. The Taylor number increases with the increase of the rotating speed, while decreases with the increase of the air gap length. The heat transfer coefficient of air gap decreases with the increase of air gap length, so that the heat transfer between the stator and rotor is restrained. Results show that the temperature rises and thermal displacement can be significantly reduced if the convection heat transfer coefficient and the cooling power can be properly promoted, then the machining accuracy can be improved. © 2016, Zhejiang University Press. All right reserved.
语种	中文
出版者	Zhejiang University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112442]
专题	机电工程学院
作者单位	1.Key Laboratory of Digital Manufacturing Technology and Application, The Ministry of Education, Lanzhou University of Technolagy, Lanzhou; 730050, China; 2.College of Mechano-Electronic Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Te,Rui, Zhi-Yuan,Lei, Chun-Li,et al. Simulation of thermal characteristics of high speed spindle considering air gap variation[J]. Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science),2016,50(5):941-948.
APA	Li, Te,Rui, Zhi-Yuan,Lei, Chun-Li,Guo, Jun-Feng,&Hu, Chi-Bing.(2016).Simulation of thermal characteristics of high speed spindle considering air gap variation.Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science),50(5),941-948.
MLA	Li, Te,et al."Simulation of thermal characteristics of high speed spindle considering air gap variation".Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) 50.5(2016):941-948.