{
  "engine": "Project Chrono / PyChrono FEA",
  "engine_version": "9.0.1",
  "mesher": "Gmsh",
  "mesher_version": "4.14.1",
  "eigensolver": "SciPy eigsh",
  "eigensolver_version": "1.14.1",
  "experiment": "First bending mode from Chrono tetrahedral stiffness and lumped mass",
  "material_density_kg_m3": 7800.0,
  "young_modulus_Pa": 200000000000.0,
  "poisson_ratio": 0.3,
  "tip_force_N": -100.0,
  "mesh_sizes_mm": [2.5, 2.0],
  "forcing_band_hz": [630.0, 750.0],
  "minimum_candidate_first_frequency_hz": 900.0,
  "maximum_candidate_static_tip_deflection_m": 0.00009,
  "maximum_relative_mesh_frequency_change": 0.05,
  "maximum_relative_mesh_deflection_change": 0.09,
  "maximum_relative_mass_change": 1e-6,
  "maximum_end_pad_missing_mm3": 0.0001,
  "maximum_end_pad_excess_mm3": 0.0001,
  "maximum_envelope_excess_mm3": 0.0001
}