Automated Gust Loads Spectrum for Fatigue Analyses of Aircraft

摘要

In this work, an automated application for determination of fatiguernspectrum in terms of load factor based on gust PSD model was developedrnvia Excel and Visual Basic. High order polynomial, exponential andrnlogarithmic regression techniques were carried out for obtaining thernalleviation factor and the non-dimensional zero crossing parameter fromrncharts. These values were also found by analytical equations. Therndeveloped application was examined on typical flight cases and comparedrnto results obtained from measured data; through this procedure, thernaccuracy of the application was illustrated.