飞机载荷/环境谱编制研究及应用

Research and application of compilation of load/environment spectrum for aircraft

阐明了编制恰当的载荷/环境谱是飞机结构疲劳、损伤容限和耐久性设计或现有机种寿命评定中的首要工作,它对后续的分析和试验工作的成败、经费、工作量和时间都有重大的影响.介绍了根据不同的工作任务和技术要求,有多种形式的载荷/环境谱及相应的编谱方法,主要对载荷/环境谱的编制技术进行了研究,提出了具有指导意义的一般性方法,最后给出了某型飞机的载荷环境谱.

Compilation of load/environment spectrum is the chief work for design of aircraft structure fatigue and damage tolerance and assessment of service aircraft life. There are many compilatory methods according to different demanding of task and technology. Based on analyzing characterizes of load and environment of aircraft structures, the compilatory principle of load spectrum that suit to environment spectrum is defined. Then the method for compilation of load/environment spectrum is studied in this paper and as an example the load/environment spectrum for certain model aircraft is given.