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Hebelwerk — Validation

Checked, not just programmed.

55 example exercises, checked by hand or against a second source, all with the same figures as the current edition.Each version is run against the same set of rules before it is delivered.

Test cases (excerpt)
  1. Four-bar linkage, transmission angle and limit positions
  2. Crank-swing arm, trajectory of the coupling point
  3. Boom with cylinder; cylinder force over the stroke
  4. Double-cut bolt, shear and hole chamfer
  5. Fillet weld under tension and bending
  6. Euler’s bending bar, four cases
  7. Bolted joint in accordance with VDI 2230, force ratio
  8. Shaft in accordance with DIN 743, protection against permanent fracture
The validation booklet (PDF) will follow shortly.
What this means

Each example includes a manual calculation with its source, a target value and a tolerance. The editor calculates the same model, and the comparison is set out in the booklet. If any version differs, it will not be supplied.

The evidence has been calculated ‘in accordance with’ the standards cited and does not replace an assessment by a notified body. Where a procedure is not covered, the report states this explicitly.