Sparse generalized eigenproblem
Structural stiffness and mass operators define Kx = lambda Mx after the selected constraints are applied.
Extract natural frequencies without coupling the model to one eigensolver.
Assemble sparse stiffness and mass operators from the structural model, define the requested eigenvalue search, and inspect natural frequencies and mode shapes through an eigensolver-neutral analysis contract.
Explicit eigensolver selection
Choose the requested mode count, frequency or eigenvalue interval, and available eigensolver without changing the structural setup.
Frequencies and mode shapes
Inspect ordered natural frequencies and animate or scale the associated displacement mode fields.
Modal Setup
Control the search and inspect every requested mode.
Define geometry, elasticity, density, constraints, mode count, and the search interval in one reproducible model. The result-frame slider switches between mode shapes, which can be scaled and animated for inspection.
CAD-bound structural inputs
Elastic properties, density, and constraints stay attached to persistent CAD parts and surfaces. Different meshes can rebuild the stiffness and mass operators from the same modal setup without reapplying constraints.
Search controls
Request a mode count and define an eigenvalue or maximum-frequency interval without hiding the selected range.
FEAST execution
The current oneMKL FEAST path runs through TorsoHPC using one complete sparse CSR operator pair and MKL threading.
Current execution limit
FEAST modal requests are thread-parallel and currently run as a single-process solve.
From constrained structure to mode shapes.
The complete setup remains visible and replayable rather than hidden inside a solver preset.
01 GeometryImport or construct the structural solids.
02 MeshDiscretize the geometry at the required resolution.
03 PhysicsAssign elasticity, density, and constraints.
04 SearchSet mode count, interval, and eigensolver.
05 InspectReview frequencies and animate mode fields.
2 published modal benchmarks
Review modal verification evidence.
Cantilever-beam and simply-supported-plate frequencies are compared with analytical references through mesh refinement, with measured errors, result data, and downloadable journals.
Review benchmark portfolio