TECH Signal 457
Eigendrum numerically solves drumhead vibration modes from user-drawn or formula-defined shapes
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Eigendrum computes and sonifies the vibrational modes of arbitrary drumhead shapes using finite element analysis in the browser.
For engineers working with acoustics, structural dynamics, or numerical methods, Eigendrum demonstrates a practical implementation of finite element eigenvalue solvers. It also provides an accessible way to explore how geometry affects vibrational spectra, which can inform design choices in mechanical and audio systems.
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Eigendrum uses finite element analysis to compute vibrational modes of arbitrary drumhead shapes, including those defined by mathematical formulas.
The solver is validated against exact solutions for simple shapes and guarantees slight overestimates of frequencies due to energy minimization.
All computation runs client-side, with shapes encoded in the URL for shareability, and no backend processing required.
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