Expansion of transient operating data

Real time operating data is very important to understand actual system response. Unfortunately, the amount of physical data points typically collected is very small and often interpretation of the data is difficult. Expansion techniques have been developed using traditional experimental modal data to augment this limited set of data. This expansion process allows for a much improved description of the real time operating response. This paper presents the results from several different structures to show the robustness of the technique. Comparisons are made to a more complete set of measured data to validate the approach. Both analytical simulations and actual experimental data are used to illustrate the usefulness of the technique. ► Orthogonal project vectors can be used for real time transient response. ► Limited set of measurements can be used to obtain larger set of expanded data. ► Expansion provides improved visualization of real time operating data.