The validation of an aerospace structure through the sine vibration analysis
Journal Title: INCAS BULLETIN - Year 2018, Vol 10, Issue 2
Abstract
Sinusoidal vibrations represent an ideal case. Technically, it is quite hard to generate pure sinusoidal vibrations without containing other spectral components, called harmonics. Sinusoidal vibrations can appear on propeller, propulsion and turbofan aircraft as well as on helicopters and aerospace structures. They can occur during different phases of flight (take-off, ascent, cruise, landing, etc.). The aim of this article is to present how a structure can be validated by using the mathematical formulas or a FEM software such as PATRAN-NASTRAN (and the equations behind it). As an application, an aerospace structure such as thruster brackets will be analyzed. A sinusoidal signal of 1g was applied on the attachment points and the response was read from the center of gravity of the thrusters.
Authors and Affiliations
Cristina-Diana BRATU, Ionut-Cosmin ONCESCU, Ion DIMA, Alexandra Raluca PETRE
Keywords
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- EP ID EP297289
- DOI 10.13111/2066-8201.2018.10.2.14
- Views 84
- Downloads 0
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