Table 1 Geometrical parameters of the SFPA-optimized MSSC array consisting of 2 elements, including the predicted resonance frequencies (\({{Re}}\left({f}_{{res},{lossy},n}\right)\)) from Eq. (29) (Analytical) and FEM (Numerical)
\(n\) | \({r}_{o,n}\,\left({mm}\right)\) | \({r}_{i,n}\,\left({mm}\right)\) | \({h}_{n}\,\left({mm}\right)\) | \({d}_{n}\,\left({mm}\right)\) | \({N}_{n}\) | \({\text{Re}}\left({f}_{{res},{lossy},n}\right)\,\left({Hz}\right)\,\left({Analytical}\right)\) | \({\text{Re}}\left({f}_{{res},{lossy},n}\right)\,\left({Hz}\right)\,\left({Numerical}\right)\) |
|---|---|---|---|---|---|---|---|
1 | 32.8 | 30.5 | 2.3 | 0.4 | 3 | 540 | 544 |
2 | 35.0 | 29.1 | 5.9 | 0.9 | 2 | 458 | 466 |