Minimal numerical dataset for amplitude-dependent operational electromechanical frequency separation in variable-thickness piezoelectric shallow cylindrical shells
Description
This dataset supports the manuscript “Amplitude-dependent operational electromechanical frequency separation in variable-thickness piezoelectric shallow cylindrical shells.” It contains the primary short-circuit/open-circuit backbone frequencies and operational frequency-separation indices for uniform, center-thick, and edge-thick shells under matched host mass, mean thickness, PZT area, curvature, and boundary conditions. The package also includes mechanism coefficients, PZT-lever controls, independent time-integration validation, primary numerical convergence evidence, and a registered second-curvature boundary check at \(R = 1.50\) m (\(a/R = 0.1333\)). The second-curvature results indicate that the thickness-placement effect is curvature-dependent rather than universal. Column definitions, units, provenance, and SHA-256 checksums are provided in the accompanying README and data dictionary. This is a minimal numerical support dataset; raw solver scripts, manuscript files, figures, historical failed screens, and experimental data are not included.