航空高速齿轮服役温度预测模型研究  

Study on Operating Temperature Prediction Model of Aero High-speed Gears

作　　者：陈玉灵 朱加赞 陈泰民 朱才朝[1] 魏沛堂[1] 徐永强 Chen Yuling;Zhu Jiazan;Chen Taimin;Zhu Caichao;Wei Peitang;Xu Yongqiang(State Key Laboratory of Mechanical Transmission for Advanced Equipment,Chongqing University,Chongqing 400044,China;Laboratory of Mechanical Systems Technology,AEEC Sichuan Gas Turbine Establishment,Chengdu 610500,China)

机构地区：[1]重庆大学高端装备机械传动全国重点实验室,重庆400044 [2]中国航发四川燃气涡轮研究院机械系统技术研究室,四川成都610500

出　　处：《机械传动》2024年第2期1-9,共9页Journal of Mechanical Transmission

基　　金：国家自然科学基金项目(U2141247)。

摘　　要：随着高速重载下航空传动服役温度的不断提高,齿轮胶合失效成为制约飞行器性能的关键因素。为高效预测航空齿轮服役温度,针对某航空发动机齿轮提出了一种基于顺序耦合的齿轮温度仿真分析方法,考虑固-液-气多相对流换热及不同齿面散热系数等因素,模拟了航空齿轮在不同工况下的本体温度和齿面闪温。经验证说明,该数值方法与ISO/TS 6336-20闪温法标准计算结果吻合良好,不同工况下接触温度最大偏差控制在10%以内;当传动系统输入转速为22400 r/min、转矩为119.4 N·m时,分流大齿轮的接触温度达到242.6℃,齿轮胶合安全系数为1.22,存在胶合失效风险。所提出的仿真分析方法能有效预测航空等领域高速齿轮服役温度,为评估航空齿轮胶合失效风险提供了高效可靠的方法。With the continuous improvement of the operating temperature of aero transmission under the high-speed and high load,gear scuffing failure has become a key factor restricting the performance of aircrafts.To efficiently predict the operating temperature of aero gears,a sequential coupling numerical analysis method of the gear temperature is proposed for an aero engine gear,which simulates the bulk temperature and flash tem⁃perature under different working conditions,considering factors such as solid-liquid-gas multi-state flow heat exchange and heat dissipation coefficients of different tooth surfaces.The simulated gear contact temperature is compared with calculation results of ISO/TS 6336-20 and shows consistency,the largest deviation between which under different working conditions is controlled within 10%.When the input speed is 22400 r/min and the torque is 119.4 N∙m,the split large gear contact temperature reaches 242.6℃,the scuffing safety factor is 1.22,and there is a risk of scuffing failure.The proposed simulation analysis method can effectively predict the operating temperature of aero high-speed gears,and provide an efficient and reliable method for assessing the risk of aero gear scuffing failure.

关 键 词：航空齿轮 齿轮胶合 温度仿真 本体温度 接触温度 

分 类 号：V232.8[航空宇航科学与技术—航空宇航推进理论与工程]