摘要
以第三代航空齿轮钢圆柱齿轮的弯曲疲劳性能作为研究对象,修正了国标(GB)给出的齿轮弯曲夹具计算公式,设计了弯曲疲劳试验用圆柱齿轮参数,并对该材料的齿轮进行了弯曲疲劳试验。通过对试验结果数据采用对数正态分布、二参数威布尔分布数据处理方法对试验数据进行了处理,得到了该材料的试验齿轮弯曲疲劳极限及可靠-应力-寿命(R-S-N)曲线,同时与9310钢(第一代)齿轮的性能进行了对比分析。结果表明:在置信度为95%、可靠度为99%的情况下,9310钢圆柱齿轮的弯曲应力极限为602 MPa,第三代航空齿轮钢圆柱齿轮钢的弯曲应力极限为687.6 MPa,第三代齿轮钢的齿轮弯曲疲劳性能相对于9310钢疲劳性能提高了14.2%,该材料在航空齿轮传动齿轮的弯曲疲劳特性方面体现出较大的优势。
Taking the third-generation aviation gear steel gear as the research object, the bending fatigue test of the cylindrical gear made of this material was carried out. The cylindrical gear for bending fatigue test was designed, and the calculation formula of the GB standard gear bending fixture was revised. The bending fatigue test was carried out for the gear of the material.The experimental data were analyzed, and the log-normal distribution and two-parameter Weibull distribution data processing methods were used to fit the data. The bending fatigue limit and R-SN curve of the test gear were obtained. The performance of test gears and 9310 steel gear was compared and analyzed. The results showed that under the condition of 95% confidence degree and 99% reliability, the bending stress limit of 9310 steel gear was 602 MPa and the bending stress limit of the third-generation aviation gear steel gear was 687. 6 MPa. The bending fatigue performance of the third-generation aviation gear steel gear was 14. 2% higher than that of the9310 steel,presenting great advantage in aviation gear transmission.
作者
唐鑫
朱如鹏
廖梅军
熊兴波
唐朋
TANG Xin;ZHU Rupeng;LIAO Meijun;XIONG Xingbo;TANG Peng(National Key Laboratory of Science and Technology on Helicopter Transmission,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Science and Technology on Helicopter Transmission Laboratory,Hunan Aviation Powerplant Research Institute,Aero Engine corporation of China,Zhuzhou Hunan 412002,China)
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2021年第8期1756-1764,共9页
Journal of Aerospace Power
基金
国家基金面上项目(51975274)
南京航空航天大学“直升机传动技术重点实验室”开放课题(HTL⁃O⁃20K02)。
