Investigation on Mesh and Sideband Vibrations of Helical Planetary Ring Gear Using Structure, Excitation and Deformation Symmetries

Chinese Journal of Mechanical Engineering

Table 6 Exciting conditions for mesh sideband

Exciting conditions	Sidebands collected from planets	Sidebands collected from ring teeth
\(v = \pm l_{\text{m}} Z_{\text{r}} \pm l_{\text{s}} N\)	Sidebands at l_mZ_r ± v_m are excited	Sidebands at l_cN ± v_s are excited
\(v \ne \pm l_{\text{m}} Z_{\text{r}} \pm l_{\text{s}} N\)	Sidebands at l_mZ_r ± v_m are suppressed	Sidebands at l_cN ± v_s are suppressed