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Harmonic analysis gives the steady-state response of a linear structure to loads that are harmonically varying with time.
Harmonic analyses are done to determine whether a structure can survive the loads appearing during resonance resulting from the forced vibrations. It also helps in ensuring whether the structure will survive through fatigue.
In the case of a satellite the harmonic loads are applied by the launch vehicle. The structure of the satellite - its side panels, PCBs, screws etc must not get damaged during this loading. This analysis will also help determine the appropriate torque needed to be applied to the screws to not come off or fracture during launch.<br \> If you are done reading this page, you can go back to [[Mechanical Subsystem]]