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Design and preliminary finite element analysis of structural frame of a double base for an infant child restraint system.
Högskolan i Skövde, Institutionen för ingenjörsvetenskap.
2015 (engelsk)Independent thesis Basic level (degree of Bachelor), 15 poäng / 22,5 hpOppgave
Abstract [en]

Child restraint systems (CRS) are used for protection of the child in case of car accident. These systems have been found to have a difficult installation process that in many cases can cause greater loads on the child and as a consequence can lead to an increased risk of injury and a reduction in safety. The problems are even more significant in cases of families with two or more children and in small cars with lack of available space. Misuse and its causes are identified from literature as well as from surveys and market research. The design guidelines are gathered from existing CRS designs. Currently available automotive and CRS fastening systems are studied. A specific methodological approach is used for project development. A new concept for a child restraint system is introduced. The main aims are the design proposal of a double ISOFIX base for two children, reduction in the misuse of the CRS, improving the user experience and achieving technological, societal and environmental contributions. The second aspect is to verify the structure of the double base by means of preliminary finite-element analysis using the case of a frontal collision in accordance to current approval testing procedures. Al 2024 is chosen for design by the material selection performed in order to optimize the structure in relation to strength and weight. The finite-element preliminary static analysis is performed employing shell elements. The results are analysed with respect to the mesh convergence. In addition a linearized buckling check is carried out. Finally, the achieved results are discussed in comparison with initial assumptions and goals and future work is suggested.

sted, utgiver, år, opplag, sider
2015. , s. 46
Emneord [en]
Child restraint system, ISOFIX, finite-element analysis, product development
HSV kategori
Identifikatorer
URN: urn:nbn:se:his:diva-11179OAI: oai:DiVA.org:his-11179DiVA, id: diva2:823850
Eksternt samarbeid
Laura Martin Villaescusa
Fag / kurs
Mechanical Engineering
Utdanningsprogram
Mechanical Engineer
Presentation
2015-05-19, 15:15 (engelsk)
Veileder
Examiner
Tilgjengelig fra: 2015-06-22 Laget: 2015-06-18 Sist oppdatert: 2015-06-22bibliografisk kontrollert

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