Modeling of Thermal Contact Resistance of Ball Screws Considering the Load Distribution of Balls | |
Gao XS(高相胜)1; Ma, Jiqian1; Li Q(李琦)2; Wang M(王民)1; Zan T(昝涛)1 | |
刊名 | Journal of Thermal Science and Engineering Applications |
2021 | |
卷号 | 13期号:4页码:1-10 |
关键词 | ball screw thermal contact resistance load distribution axial load, axial pretension geometry error |
ISSN号 | 1948-5085 |
产权排序 | 2 |
英文摘要 | A new analytical method for the modeling of the thermal contact resistance of ball screws considering the load distribution of balls is proposed in this research. The load on balls is analyzed by the force analysis of ball screws, and then, the thermal contact resistance is obtained by the minimum excess principle and Majumdar-Bhushan (MB) fractal theory. The proposed method is validated by experimental results. The comparison with experimental and former results indicates that it is an effective method to evaluate the thermal contact resistance of ball screws. On that basis, effects of axial load, axial pretension, and geometry error of balls are discussed. It is concluded that the thermal contact resistance of ball screws increases along with axial load increase. The load on balls all decreases with axial pretension increase, and the thermal contact resistance of ball screws decreases with the axial pretension increase as well. When the axial load is applied on the nut in an axial-pretension ball screw, the load distribution in Nut A or B becomes less homogenized when the nut moves from nut position parameter =0 to 1. When the nut moves to =0.25, the thermal contact resistance will reach a minimum value, and it gets a maximum value at the nut position =1. The interval range of load and thermal contact resistance are obtained via uncertain analysis. It is concluded that the geometry error has much greater effects on the balls far away from the spacer. |
资助项目 | National Natural Science Foundation of China[51875008] ; National Natural Science Foundation of China[51505012] ; National Natural Science Foundation of China[51575014] ; Beijing Municipal Education Commission ; China Scholarship Council[201806545032] |
WOS研究方向 | Thermodynamics ; Engineering |
语种 | 英语 |
WOS记录号 | WOS:000674650200012 |
资助机构 | National Natural Science Foundation of China (51875008, 51505012, and 51575014) ; Beijing Municipal Education Commission and China Scholarship Council (201806545032) |
内容类型 | 期刊论文 |
源URL | [http://ir.sia.cn/handle/173321/29162] |
专题 | 沈阳自动化研究所_机器人学研究室 |
通讯作者 | Gao XS(高相胜) |
作者单位 | 1.Beijing Key Laboratory of Advanced Manufacturing Technology, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China 2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China |
推荐引用方式 GB/T 7714 | Gao XS,Ma, Jiqian,Li Q,et al. Modeling of Thermal Contact Resistance of Ball Screws Considering the Load Distribution of Balls[J]. Journal of Thermal Science and Engineering Applications,2021,13(4):1-10. |
APA | Gao XS,Ma, Jiqian,Li Q,Wang M,&Zan T.(2021).Modeling of Thermal Contact Resistance of Ball Screws Considering the Load Distribution of Balls.Journal of Thermal Science and Engineering Applications,13(4),1-10. |
MLA | Gao XS,et al."Modeling of Thermal Contact Resistance of Ball Screws Considering the Load Distribution of Balls".Journal of Thermal Science and Engineering Applications 13.4(2021):1-10. |
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