A study on the sideband phenomenon of planetary gears

Autor: Kunihiko MORIKAWA, Kouji KUMAGAI, Ryuta NISHIHARA
Jazyk: japonština
Rok vydání: 2014
Předmět:
Zdroj: Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 815, Pp DSM0212-DSM0212 (2014)
Druh dokumentu: article
ISSN: 2187-9761
DOI: 10.1299/transjsme.2014dsm0212
Popis: The mechanism of the sideband phenomenon of planetary gear vibration that often occurs in a planetary gear set was clarified in connection with mesh phase differences. This sideband phenomenon is one in which the (Z-1) or (Z+1) order component level is higher than the mesh order (Z) component level. The notation (Z-1) or (Z+1) means the mesh order (Z) minus or plus one carrier revolution. An in-phase (IP) planetary gear set has no such sideband phenomenon. In a sequentially phased (SP) planetary gear set, this phenomenon occurs in transverse and tilting vibration of sun gear, carrier and ring gear. Which sideband, either (Z-1) or (Z+1), occurs depends on the relationship between the mesh phasing direction and carrier rotation direction. To verify this sideband phenomenon, we derived the formulae to calculate the translational forces in x, y and z directions and the rotational moments about these translation axes which act to sun gear, carrier and ring gear due to mesh forces at each mesh point.
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