Frequency analysis of a two-stage planetary gearbox using two different methodologies |
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Affiliation: | Laboratoire de recherche de mécanique, modélisation et productique (LA2MP), École d''ingénieurs de Sfax, 3038 Sfax, Tunisia |
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Abstract: | This paper is focused on the characterization of the frequency content of vibration signals issued from a two-stage planetary gearbox. To achieve this goal, two different methodologies are adopted: the lumped-parameter modeling approach and the phenomenological modeling approach. The two methodologies aim to describe the complex vibrations generated by a two-stage planetary gearbox. The phenomenological model describes directly the vibrations as measured by a sensor fixed outside the fixed ring gear with respect to an inertial reference frame, while results from a lumped-parameter model are referenced with respect to a rotating frame and then transferred into an inertial reference frame. Two different case studies of the two-stage planetary gear are adopted to describe the vibration and the corresponding spectra using both models. Each case presents a specific geometry and a specific spectral structure. |
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Keywords: | Lumped-parameter model Phenomenological model Two-stage planetary gear Inertial reference frame Rotating frame Frequency analysis |
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