Cantilever beam gap handling #5
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- Add GapConfig dataclass for configuring gap geometry with: - Absolute gap width (m) - Fractional gap (as fraction of nominal width) - Gap extent from root (m) - Add piezoresistor gap configuration (gap_config property): - Maintains backward compatibility via air_gap_width property - Adds effective_pr_width_at(x) for spatially varying PR width - Add beam gap configuration (beam_gap_config property): - Reduces effective beam width in root region - Affects stiffness via _calculate_stiffness_with_beam_gap() - Affects effective mass via _calculate_effective_mass_with_beam_gap() - Affects resonant frequency via _omega_vacuum_with_beam_gap() - Update calculateEnergies() to support spatially varying width for Rayleigh-Ritz frequency calculations - Add comprehensive tests for all gap configurations This addresses PZ-12: Generalize gap handling for cantilever beam multi-turn models. Co-authored-by: jcdoll <[email protected]>
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Generalize cantilever gap handling to support spatially varying width for both piezoresistors and beam mechanics.
This PR introduces a
GapConfigdataclass to unify gap definitions. It refactors the existing piezoresistorair_gap_widthinto this new system and, more significantly, adds abeam_gap_config. Thisbeam_gap_configallows for modeling a reduction in the cantilever's structural width in the root region, which is crucial for accurate Rayleigh-Ritz frequency calculations for designs like tuning forks, addressing a previous limitation whereair_gap_widthonly affected piezoresistor geometry.Slack Thread