Data Treatment Expert System for Median Stochastic Load-Spectrum

The precondition of solving life prediction and life extension for airplane structures is to work out a typical load time history, i.e. load spectrum, which can simulate airplane's real service situation. This is the basis of theory analysis and whole size structure fatigue test. In view of this, the data treatment and the compilation procedure of median stochastic load spectrum are discussed. The data treatment expert system for median stochastic load spectrum is created. It includes system framework design, data description and parameter configuration, implementation process and database design, etc. The research achievement has been used for load spectrum data treatment and compilation for airplane, aeroengine, airplane landing gear and main fighting tank, etc.