解决飞机结构定寿、延寿的先决条件是 ,编制出能模拟飞机真实情况具有代表性的典型载荷 时间历程 ,即载荷谱 ,以此作为理论分析和全尺寸结构疲劳试验的基础 .对此 ,在探讨中值随机载荷谱数据处理与编制过程的基础上 ,建立了中值随机载荷谱数据处理专家系统 .内容包括系统结构设计、数据描述与参数设置、实现过程和数据库设计等 .本项研究成果已用于飞机、航空发动机、飞机起落架和主战坦克等载荷谱的实测数据处理与编制之中 A prerequisite for solving the problem of aircraft structure life-span and life extension is to formulate a typical load time history that can simulate the real situation of the aircraft, namely the load spectrum, as a basis for theoretical analysis and full-scale structural fatigue test. In this regard, Based on the data processing and compilation process of the median stochastic loading spectrum, an expert system of median stochastic loading spectrum data processing is established, including system structure design, data description and parameter setting, implementation process and database design, etc. The research results Has been used for aircraft, aircraft engines, aircraft landing gear and main battle tank load spectrum measured data processing and preparation