Table 2 Different NES configurations resembled by the NES force in Eq. (3).
From: New effectual configuration of bistable nonlinear energy sink
Torsional stiffness | NES type parameter | New or Analogous existing NES or TMD |
|---|---|---|
\(k_{\beta } \ne 0\) | \(\alpha > 1\) | Stiffness-based bistable NES in new configuration |
\(k_{\beta } \ne 0\) | \(1 > \alpha > 0\) | Stiffness-based stable NES in new configuration |
\(k_{\beta } = 0\) or \(k_{\beta } \ne 0\) | \(\alpha = 0\) | |
\(k_{\beta } = 0\) or \(k_{\beta } \ne 0\) | \(\alpha < 0\) |
