中国机械工程 ›› 2010, Vol. 21 ›› Issue (06): 631-635.

• 机械基础工程 •    下一篇

基于热网络的某主轴系统稳态热分析

刘昌华1;骆广进2;何卫2;胡旭晓1
  

  1. 1.浙江大学,杭州,310027
    2.杭州机床集团有限公司,杭州,311305
  • 出版日期:2010-03-25 发布日期:2010-04-02
  • 基金资助:
    浙江省重大科技专项(2008C01026-1)；国家科技重大专项(2009ZX04014-026-04) 
    Zhejiang Provincial Science and Technology Major Project ( No. 2008C01026-1);
    National Science and Technology Major Project ( No. 2009ZX04014-026-04)

Steady State Thermal Analysis of a Spindle System Based on Thermal Network

Liu Changhua1;Luo Guangjin2;He Wei2;Hu Xuxiao1
  

  1. 1.Zhejiang University,Hangzhou,310027
    2.Hangzhou Machine Tool Group Co.,Ltd.,Hangzhou,311305
  • Online:2010-03-25 Published:2010-04-02
  • Supported by:
     
    Zhejiang Provincial Science and Technology Major Project ( No. 2008C01026-1);
    National Science and Technology Major Project ( No. 2009ZX04014-026-04)

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摘要：

以某主轴系统为研究对象,用热网络法建立了该主轴系统的热平衡方程组;针对主轴系统的结构件、轴承转速、冷却液温度等给定的工况建立了热阻、功率损失、对流传热的计算模型;通过MATLAB求解热平衡方程组,计算出主轴系统的稳态温度场分布;考虑了轴承转速、冷却液温度、润滑剂黏度大小对主轴系统中关键节点温度的影响,为该主轴系统的瞬态热分析提供了有效的初始条件。

关键词:

Abstract:

The heat balance equations for a spindle system were built up based on thermal network. The calculation models for thermal resistances, power losses and convective heat transfer were established respectively under given operating conditions, according to the structural components, bearing rotational speed and coolant temperature. The stable temperature field of the spindle system was rebuilt through solving the heat balance equations by MATLAB.The influence on key node temperatures was also included by considering the bearing rotational speed,coolant temperature and the viscosity of lubricant.The paper offered efficient initial conditions for the transient thermal analysis.

Key words: thermal network, spindle system, thermal resistance, convective heat transfer coefficient

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