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Effect of load and meshing stiffness variation on modal properties of planetary gear

Abstract: Modal analysis of mechanical transmissions allows identification of critical frequencies and corresponding vibration modes. Major research works are done under constant loading conditions. However, load fluctuation can lead to variability in stiffness characteristics. Also, in the case of gear transmission, the fluctuation of mesh stiffness is rarely considered in the modal analysis. In this paper, a modal analysis of planetary gear transmission is investigated for different loading conditions and under mesh stiffness fluctuation. Hammer impact tests are carried out and the vibrations on fix ring are measured with different levels of load. During each test, natural frequencies are identified through frequency response function. The obtained results are correlated against the corresponding tridimensional lumped parameter of the test rig. Distributions of modal strain and kinetic energy for different loading conditions are studied as well as the effect of mesh stiffness variation on the natural frequencies.

 Autoría: Mbarek A., Hammami A., Fernandez Del Rincon A., Chaari F., Viadero Rueda F., Haddar M.,

 Fuente: Applied Acoustics, 2019, 147, 32-43

Editorial: Elsevier Limited

 Fecha de publicación: 01/04/2019

Nº de páginas: 22

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.apacoust.2017.08.010

ISSN: 0003-682X

Proyecto español: DPI2013-44860

Url de la publicación: https://doi.org/10.1016/j.apacoust.2017.08.010