摘要
以附件机匣传动系统为研究对象,用热网络法建立了该传动系统的热平衡方程,并给出了热源、热阻和对流换热系数的计算模型;借助MATLAB编程进行计算,获得了附件机匣传动系统稳态温度场分布;搭建了温度测试实验台,对几个典型节点测温;结果表明:温度变化趋势一致性较好,但稳态温度值误差较大,对计算结果和实验结果对比,进行数据修正并通过实验验证,误差控制在2%以内。因而,验证了采用热网络法计算附件机匣热平衡的可行性和修正系数选择的正确性。
The accessory gearbox drive system as the object of study,the transmission of the heat balance equations based on the thermal network method is established,and the calculation models of heat source,thermal resistance and convective heat transfer coefficient are given.The temperature field distribution of accessory gearbox is obtained through the calculation of heat balance equations by MATLAB program.The temperature test bench is set up and the temperature of several typical nodes in transmission is tested.The results show that the thermal network method results are in good agreement with experimental data but the steady-state temperature error is severe.By comparing the calculation results with the experimental results,data are corrected and verified by experiments,the errors are controlled within2%.Therefore,The feasibility of using heat network method to calculate the heat balance of the accessory case and the correctness of the correction coefficient’s selection are verified.
作者
曾红
崔学淼
魏松
苏国营
王延忠
ZENG Hong;CUI Xue-miao;WEI Song;SU Guo-ying;WANG Yan-zhong(College of Mechanical Engineering and Automation,Liaoning University of Technology,Jinzhou 121001, China;College of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,Beijing 100191, China)
出处
《辽宁工业大学学报（自然科学版）》
2017年第5期302-306,共5页
Journal of Liaoning University of Technology(Natural Science Edition)
基金
国家自然科学基金资助(51275020)
关键词
附件机匣
热网络法
热阻
热平衡
修正
accessory gearbox
thermal network method
heat resistance
heat balance
correction
