Thermal-deformation coupling in thermal network for transient analysis of spindle-bearing system
Thermal-deformation coupling in thermal network for transient analysis of spindle-bearing system
复制标题
用于主轴轴承系统瞬态分析的热网络中的热变形耦合
DOI：
10.1016/j.ijthermalsci.2015.12.007
复制
发表时间：
2016-06-01
影响因子：
4.5
通讯作者：
Wu, Wenwu
中科院分区：
文献类型：
--
作者：
Yan, Ke;Hong, Jun;Wu, Wenwu
对于主轴-轴承系统这样的复杂结构，用热网络法进行瞬态分析是必要的，但还不够。本文提出了一种考虑热-结构耦合的锭子瞬态分析网络方法。首先，分析了主轴系统在装配过程中的径向变形、轴向变形、热膨胀变形和离心变形。在传统稳态模型的基础上，考虑热变形耦合和其它时变参数，推导了瞬态分析方法。实验结果表明，稳态模型预测的温度偏差较大，而瞬态模型预测的温度精度较高。最后得出了主轴系统的温升曲线、平衡时间以及连续工作条件下的温升特性。(C)2015年Elsevier Masson SAS。All rights reserved.
Transient analysis by thermal network method for complex structures like the spindle-bearing system is essential but insufficient. In this paper, the network approach was developed for spindle transient analysis in consideration of thermal-structure interaction. Firstly, the radial and axial deformation of spindle system during assembling process, deformation by thermal extension and centrifugal effect were all obtained. Then the transient analysis was deduced based on traditional steady model, the thermal deformation coupling and some other time-varying parameters. Experiment results indicate that temperature by steady model is of large deviation, while by the transient model is much more accurate. Finally, the temperature rising curves, the balance time of the spindle system and temperature rise feature for continuous working conditions were all achieved and discussed. (C) 2015 Elsevier Masson SAS. All rights reserved.