基于热网络法的汽车变速器热平衡分析

doi:10.16578/j.issn.1004.2539.2014.03.035

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基于热网络法的汽车变速器热平衡分析

更新时间：2025-04-03

- 基于热网络法的汽车变速器热平衡分析
- Vol. 38, Issue 3, Pages: 143-146+166(2014)
- 作者机构：
  
  武汉理工大学机电工程学院2. 上汽通用五菱汽车股份有限公司
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2014.03.035
  CLC： U463.212
- Published：2014
- 稿件说明：
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[1]周廷美,何庆,周浩,巫绍宁.基于热网络法的汽车变速器热平衡分析[J].机械传动,2014,38(03):143-146+166.

[J]. 2014, 38(3): 143-146+166.
[1]周廷美,何庆,周浩,巫绍宁.基于热网络法的汽车变速器热平衡分析[J].机械传动,2014,38(03):143-146+166. DOI： 10.16578/j.issn.1004.2539.2014.03.035.

[J]. 2014, 38(3): 143-146+166. DOI： 10.16578/j.issn.1004.2539.2014.03.035.

摘要

针对汽车变速器在工作时由于热量损耗过大导致系统温度过高的问题

对变速器进行热平衡分析。采用热网络法建立了变速器热平衡模型

并给出了热源功率、热阻以及换热系数的计算模型;利用MATLAB编程计算获得了变速器传动系统温度场分布;搭建了油温测试系统

对变速器润滑油油温进行测试

发现计算结果与测试结果接近

温升趋势吻合较好

验证了基于热网络法的变速器热平衡模型的正确性。

Abstract

In order to solve the high temperature problem resulting from powerloss of automobile transmission when the transmission is working

the heat balance of the transmission is analyzed.The heat balance equations of the transmission are established by using thermal network method

the models for calculating the heat source power

thermal resistance and heat transfer coefficients are given

the temperature field distribution of transmission system is obtained through the calculation of heat balance equations by MATLAB program. The oil temperature test system is set up and the temperature of lubricant oil in transmission is tested and it is shows that the test results were basically agreement with the numerical results.It is shows that the heat balance model based on the thermal network method is correct and available.

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