Effect of multi-factor coupling on thermal properties of space bearing" /> 多因素耦合对空间轴承热学特性的影响
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浙江大学学报(工学版)
浙江大学学报(工学版)
能源与机械工程     
多因素耦合对空间轴承热学特性的影响
宁峰平1,姚建涛1,2,孙锟1,马明臻3,赵永生1,2
1.燕山大学 河北省并联机器人与机电系统实验室,河北 秦皇岛 066004；2.燕山大学 先进锻压成形技术与科学教育部重点实验室,河北 秦皇岛 066004；3.燕山大学 亚稳材料制备技术与科学国家重点实验室,河北 秦皇岛 066004
Effect of multi-factor coupling on thermal properties of space bearing
NING Feng ping1, YAO Jian tao1, 2, SUN Kun1, MA Ming zhen3,ZHAO Yong sheng1, 2
1.Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao 066004, China;2. Key Laboratory of Advanced Forging and Stamping Technology and Science, Yanshan University, Qinhuangdao 066004, China;3. State Key Laboratory of Metastable Materials Science and Technology,
Yanshan University, Qinhuangdao 066004, China
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摘要：

针对航天机构工作环境的特殊性,构建空间环境下的轴承热传递网络模型,研究多因素耦合作用下空间轴承的稳态温度场.以滚动轴承的拟静力学、传热学及摩擦生热分析为基础,分析固体自润滑空间轴承的摩擦力矩和摩擦热,建立轴承组件关键位置的温度节点和热传递方程组.通过理论分析、仿真和实验研究,分别研究单一因素和多因素耦合对空间轴承温度场的影响.研究结果表明：理论计算与仿真结果和实验结果基本是吻合的,验证了简化热传递网络模型的正确性；交变温度对空间轴承热学特性影响最显著,转速和载荷对空间轴承热学特性影响较弱；低速、轻载时,轴承温度主要取决于交变温度,转速和载荷的影响基本可以忽略；当多因素共同影响时,交变温度与轴向载荷耦合影响轴承热学特性,交变温度与转速联合影响轴承热学特性.
Abstract:

The network model of thermal transportation of bearing in space environment was established and the evolution law of transient temperature field of space bearing assembly was analyzed aiming at the particularity of the work environment of spacecraft mechanism. The friction moment and friction heat of solid selflubricating space bearing were analyzed based on the quasistatics, heat transfer theory and generation of heat by friction. The temperature nodes of key positions and heat transfer equation for bearing assembly were established. The effect of single factor and multifactor on temperature field of space bearing was respectively analyzed by theoretical study, simulation and experiment. Results showed that the theoretical analysis accorded with simulation results and experimental results. The correctness of network model of thermal transportation and the rationality of heat distribution were verified. Alternating temperature has the most significant impact on the thermal properties of space bearing, but the impact of rotate speed and load is weaker. In low speed and light load, the temperature field of bearing mainly depends on environmental temperature, and the impacts of rotate speed and load can nearly be ignored. When multiple factors influence, alternating temperature and axial load coupling bear thermal characteristics, and alternating temperature and speed effect bear thermal characteristics together．
出版日期: 2016-03-31
:  V 232  
基金资助:

国家“973”重点基础研究发展规划资助项目(2013CB733000).
通讯作者: 赵永生，男，教授，博导. ORCID:0000 0001 8562 4362.     E-mail: yszhao@ysu.edu.cn
作者简介: 宁峰平(1984-)，男，博士生，从事航天机构可靠性影响因素作用机理及演化规律的研究. ORCID:0000 0002 0742 9964.E-mail：ning_fengping@163.com
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宁峰平,姚建涛,孙锟,马明臻,赵永生. 多因素耦合对空间轴承热学特性的影响[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.01.019.

NING Feng ping, YAO Jian tao, SUN Kun, MA Ming zhen,ZHAO Yong sheng.

Effect of multi-factor coupling on thermal properties of space bearing
. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.01.019.

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http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.01.019    或    http://www.zjujournals.com/eng/CN/Y2016/V50/I1/129

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