The fatigue and damage tolerance (F&DT) test of full-scale barrel was carried out, to study the load carry ability and F&DT character for a civil aircraft. A series of analysis and optimization works on test results investigation, global finite element model simulation, structure stress and load analysis, damage tolerance ability evaluation, structure maintenance validation were done. The results show that full-scale barrel test has more reliability and efifciency compare with the component test. It also proves that the whole process of test design and data disposition has reference value for barrel test design of new type aircraft.%为了获取某民用飞机机身桶段结构承载特性以及疲劳、损伤容限性能，采用全尺寸桶段疲劳及损伤容限试验进行了验证，并对试验结果进行了深入的研究，在整体有限元模拟、结构应力及传载分析、结构疲劳问题处理、结构损伤容限性能评估、维修概念验证等多个方面进行了分析及结构优化。分析结果证明，全尺寸桶段试验试验模拟的真实性及高效性远高于结构件试验，试验整个设计及数据分析过程对后续新机型桶段试验设计及试验数据分析都有着较高的参考价值。
展开▼
