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Methodology for mass minimisation of a seat structure with integrated safety belts constrained by biomechanical responses on the occupant in frontal crashes
Umeå university.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Material- och solidmekanik.ORCID-id: 0000-0001-7074-8960
2010 (Engelska)Ingår i: International Journal of Crashworthiness, ISSN 1358-8265, E-ISSN 1754-2111, Vol. 15, nr 4, s. 343-355Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A methodology using finite element (FE) modelling and simulation with a property-based model (PBM) is presented. A generic 3-D FE model of a seat structure with a three-point seat-integrated safety belt configuration was established. A 50th percentile Hybrid III FE dummy model was used as occupant. Metamodelling techniques were used in optimisation calculations performed in two steps. Step 1: Six separate optimisations minimising biomechanical responses of the FE dummy model. Step 2: Four separate optimisations with different start values of the design variables, with the total mass of the seat structure as objective function and with the minimised biomechanical responses from Step 1 as constraint values. Six design variables were used in both Step 1 and Step 2. The four optimisations performed in Step 2 generated four different results of the total mass. Thus, different local minima were found instead of one single global minimum. The presented methodology with a PBM may be used in a concept design phase. Some issues concerning the FE model suggest further improvement.

Ort, förlag, år, upplaga, sidor
2010. Vol. 15, nr 4, s. 343-355
Nyckelord [en]
Technology - Engineering mechanics
Nyckelord [sv]
Teknikvetenskap - Teknisk mekanik
Nationell ämneskategori
Teknisk mekanik
Forskningsämne
Hållfasthetslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-2659DOI: 10.1080/13588260903385550ISI: 000282581700001Scopus ID: 2-s2.0-77957837940Lokalt ID: 04fd34c0-db6f-11df-8b36-000ea68e967bOAI: oai:DiVA.org:ltu-2659DiVA, id: diva2:975512
Anmärkning
Validerad; 2010; 20101019 (mo)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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Gavelin, AndersHäggblad, Hans-ÅkeOldenburg, Mats

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