{
  "engine": "Project Chrono / PyChrono",
  "engine_version": "9.0.1",
  "experiment": "curved rocker released on a rigid floor with STEP-derived convex collision geometry",
  "material_density_kg_m3": 7800.0,
  "gravity_m_s2": 9.81,
  "contact_friction": 1.0,
  "release_angles_deg": [30.0, 35.0, 40.0],
  "upright_tolerance_deg": 5.0,
  "duration_s": 0.5,
  "time_step_s": 0.001,
  "maximum_return_time_s": 0.145,
  "maximum_relative_mass_change": 1e-6,
  "maximum_envelope_change_mm": 1e-6,
  "maximum_external_added_mm3": 0.0001,
  "maximum_exterior_removed_mm3": 0.0001
}