Matlab-Based Application Design for Flight Recording Data Analysis in Short Period Oscillation

This study aims to design an application to process flight test data in the short period oscillation phase of an aircraft. The short period mode is a phenomenon related to the flight stability of an aircraft. This mode has strong damping characteristics and a short oscillation period. Therefore, the analysis of this oscillation mode is very important to ensure the performance and safety of the aircraft in meeting the targets. The application designed in this study has the function to process flight test data, process signals, display the results in graphical form, and calculate the damping ratio of the aircraft. By using numerical data processing methods, this application can produce graphs that describe the characteristics of aircraft oscillations, such as amplitude and frequency, which then produce aircraft damping values to assess stability when airborne. Data processing and graphic visualization are carried out using the MATLAB application, with the Savitzky-Golay Filter approach and identification of vibration characteristics using the time step response method. The results of this study are expected to be an effective tool for aviation engineers in identifying potential problems in the short period mode and providing recommendations for design decisions that meet the criteria.