{
  "schema_version": 1,
  "review_date": "2026-10-04",
  "document_kind": "Published source data for research examples",
  "title": "A numerical finite-element method for radial bearing stiffness estimation based on load dependent meshing",
  "authors": "Alberto Gabrielli; Mattia Battarra; Emiliano Mucchi",
  "year": "2022",
  "source_url": "https://past.isma-isaac.be/downloads/isma2022/proceedings/Contribution_183_proceeding_3.pdf",
  "review_scope": "ISMA 2022 pp.1527–1541; Table 1 and Section 2.1, contact-coefficient Tables 4–7, whole-bearing Sections 3–4 and clearance study",
  "readiness": "Published source-data research example; native comparison pending",
  "remaining_inputs": [
    "Exact FE mounting/contact/cage boundaries for whole-bearing curves",
    "Select contact-law versus whole-bearing tangent target",
    "Digitize graph targets with uncertainty where no numeric table is supplied"
  ],
  "paper_id": "P016",
  "filename": "gabrielli2022-source-cases.json",
  "website_anchor": "gabrielli-stiffness",
  "source_location": "ISMA 2022 pp.1527-1541; Table 1 and Section 2.1; contact Tables 4-7; whole-bearing Sections 3-4",
  "native_input_available": false,
  "source_material": {
    "youngs_modulus_gpa": 210,
    "poisson_ratio": 0.3,
    "density_kg_per_m3": 7800
  },
  "nominal_geometry_before_clearance": [
    {
      "designation": "NU202 ECP",
      "roller_count": 11,
      "roller_diameter_mm": 5.5,
      "effective_roller_length_mm": 5.6,
      "inner_race_diameter_mm": 19.3,
      "outer_race_diameter_mm": 30.3,
      "bearing_width_mm": 11
    },
    {
      "designation": "6210",
      "ball_count": 10,
      "ball_diameter_mm": 12.7,
      "inner_race_diameter_mm": 57.4,
      "outer_race_diameter_mm": 82.7,
      "groove_radius_mm": 6.55,
      "bearing_width_mm": 20
    }
  ],
  "separate_clearance_study": {
    "diametral_clearance_mm": 0.04,
    "source_location": "Section 4.3"
  },
  "targets": "Contact-law coefficients in Tables 4-7; whole-bearing radial stiffness versus load, direction and clearance in Sections 3-4. Graph targets require digitization uncertainty.",
  "comparison_boundary": "Reproduce finite-ring, mounting, cage orientation and contact boundaries. A coefficient in Q=K*delta^1.5 is distinct from whole-bearing incremental dF/dx."
}