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Validation of human pedestrian models using laboratory data as well as accident reconstruction

  • Human pedestrian models have been developed and improved continually. This paper shows the latest stage in development and validation of the multibody pedestrian model released with MADYMO. The biofidelity of the multibody pedestrian model has been verified using a range of full pedestrian-vehicle impact tests with a large range in body sizes (16 male, 2 female, standing height 160-192cm, weight 53.5-90kg). The simulation results were objectively correlated to experimental data. Overall, the model predicted the measured response well. In particular the head impact locations were accurately predicted, indicated by global correlation scores over 90%. The correlation score for the bumper forces and accelerations of various body parts was lower (47-64%), which was largely attributed to the limited information available on the vehicle contact characteristics (stiffness, damping, deformation). Also, the effects of the large range in published leg fracture tolerances on the predicted risk to leg fracture by the pedestrian model were evaluated and compared with experimental results. The validated mid-size male model was scaled to a range of body sizes, including children and a female. Typical applications for the pedestrian models are trend studies to evaluate vehicle front ends and accident reconstructions. Results obtained in several studies show that the pedestrian models match pedestrian throw distances and impact locations observed in real accidents. Larger sets of well documented cases can be used to further validate the models especially for specific populations as for instance children. In addition, these cases will be needed to evaluate the injury predictive capability of human models. Ongoing developments include a so-called facet pedestrian model with a more accurate geometry description and a more humanlike spine and neck and a full FE model allowing more detailed injury analysis.

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Metadaten
Verfasserangaben:R. DeLange, L. VanRooij, R. Happee, X.J. Liu
URN:urn:nbn:de:hbz:opus-bast-4478
Dokumentart:Konferenzveröffentlichung
Sprache:Englisch
Datum der Veröffentlichung (online):01.08.2012
Jahr der Erstveröffentlichung:2007
Beteiligte Körperschaft:TNO Automotive Safety
Datum der Freischaltung:01.08.2012
Freies Schlagwort / Tag:Bein (menschl); Biomechanik; Entwicklung; Frau; Fußgänger; Kind; Konferenz; Mann; Menschlicher Körper; Rechenmodell; Simulation; Unfall; Verletzung
Accident; Biomechanics; Child; Conference; Development; Human body; Injury; Leg (human); Man; Mathematical model; Pedestrian; Simulation; Woman
Bemerkung:
Weitere beteiligte Köroerschaften: TNO Automotive China
Quelle:2nd International Conference on ESAR "Expert Symposium on Accident Research", S. 186-193
Institute:Sonstige / Sonstige
DDC-Klassifikation:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
collections:BASt-Beiträge / ITRD Sachgebiete / 83 Unfall und Mensch
BASt-Beiträge / Tagungen / International Conference on ESAR / 2nd International Conference on ESAR
Lizenz (Deutsch):License LogoBASt / Link zum Urhebergesetz

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