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Table 5 Exciting conditions for sidebands excited by mesh excitations on ring gear teeth

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

Exciting conditions

Sidebands

\(v_{\text{s}} = \pm l_{\text{s}} N \pm Q^{\prime}_{\text{c}} Z_{\text{r}}\)

Sidebands at \(l_{\text{s}} N \pm v_{\text{s}}\) are excited

\(v_{\text{s}} \ne \pm l_{\text{s}} N \pm Q^{\prime}_{\text{c}} Z_{\text{r}}\)

Sidebands at \(l_{\text{s}} N \pm v_{\text{s}}\) are suppressed

  1. where "vs" and "\(Q^{\prime}_{\text{c}}\)" are the modulating order and integer, respectively