Method for Fatigue Test of Aircraft StructuresConsidering Corrosion Influence
-
摘要: 考虑腐蚀环境的影响,提出了一种关于飞机结构在一般环境下的疲劳试验方法.该方法综合考虑地面停放预腐蚀和空中腐蚀疲劳对结构疲劳寿命的影响,由腐蚀环境下结构设计疲劳寿命要求和年平均飞行小时数反推出一般环境下的疲劳寿命指标,从而确定结构疲劳试验目标寿命,为结构疲劳试验提供指导,具有重要的工程实用价值.Abstract: Considering the influence of corrosive environment, a valuable method for fatigue test of aircraft structures at room temperature and in the air is presented. The service process of an aircraft is simplified into pre-corrosion under the ground environment and corrosion fatigue during flight, and corrosion influence coefficient curves of aircraft structures are obtained. According to the damage equivalent principle, the fatigue life indexes of aircraft structures at room temperature and in the air are deduced based on the designed fatigue life index and average flight time per year under corrosive environment, so the testing object life can be determined.
-
Key words:
- fatigue tests /
- corrosion /
- fatigue life
-
[1] Wanhill R J H, Luccia J J De, Russo M T. The fatigue in aircraft corrosion testing(FACT) program. AGARD Report No.713, 1989.5~72 [2] 蒋祖国,金 石,刘文宾,等. 飞机结构腐蚀疲劳[M]. 北京:航空工业出版社,1991.171~210 Jiang Zhuguo, Jin Shi, Liu Wenbin, et al. Corrosion fatigue for aircraft structures[M].Beijing:Aviation Industrial Press,1991(in Chinese) [3] 刘文, 李玉海, 贾国荣. 腐蚀条件下飞机结构使用寿命评定与监控方法研究[J]. 北京航空航天大学学报,1996,22(3):259~263 Liu Wenting, Li Yuhai, Jia Guorong. Evaluation and supervision of service life for aircraft structures under corrosive condition[J].Journal of Beijing University of Aeronautics and Astronautics,1996,22(3):259~263 (in Chinese) [4] 刘文,蒋冬滨. 飞机结构关键危险部位加速腐蚀试验环境谱研究[J]. 航空学报,1998,19(4):435~438 Liu Wenting, Jiang Dongbin. Study on accelerated corrosion test environment spectrum for critical area[J]. Acta Aeronautica et Astronautica Sinica, 1998,19(4):435~438(in Chinese) -
点击查看大图
计量
- 文章访问数: 2528
- HTML全文浏览量: 118
- PDF下载量: 865
- 被引次数: 0
下载:
