Root stress of thin-rimmed internal spur gear supported with pins.

Fault feature analysis of planetary gear system with tooth root crack and flexible ring gear rim

“…Later, they [7] investigated the deflections of a ring gear by finite element (FE) method and theoretical approach, respectively. Satoshi ODA et al [8] applied the FE method to study the root stress and the rim deformation of a thin-rimmed spur ring gear supported by pins. Abousleiman and Velex [9] developed a hybrid 3D finite element/lumped parameter model to analyze the quasi-static and dynamic properties of planetary/epicyclic gear sets, where the effect of a flexible ring gear was taken into account by using the beam elements for simple structures and the 3D brick elements for complex geometries.…”

Finite element analysis of internal gear in high-speed planetary gear units

“…Studies have shown that the flexibility of internal gear significantly affects the dynamic behaviors of planetary gear trains [9] . In order to get stresses and deflections of ring gear, several finite element analysis models were proposed [10][11][12][13][14] . However, most of the models dealt with only a segment of the internal ring gear with a thin rim.…”