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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Creation of the helmet model from the 3D scanning
 Micka, Michal ; Vyčichl, J.
Contribution deals with the preparation of the numerical model of the cycling protective helmet for calculation with the computer programme ANSYS. The helmet was scanning by the hand scanner. After evaluation of the pictures of the helmet surface are at disposal the graphic output files in the format IGES and STL . To unloaded them and for the creation of the numerical geometrical model in ANSYS the modification of the model was performed in two ways. First the input file is edited from the format IGES and second it is the creation of the helmet outside surface from triangles inscribed into the surface of the model in format STL.
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Droptest of the model of the helmet and head
 Micka, Michal ; Krumphanzl, V.
The contribution deals with the evaluation of the behavior of the numerical model of the bike helmet and the head maquette using the programme ANSYS LS-DYNA. There are collated two types of the protective helmet – fulfilled helmet and the helmet with lightening and airing openings. There are modeled the fall on the pillow in both cases with the same initial parameters and the results of both calculations are collated.
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