Browse Publications Technical Papers 2020-01-1330
2020-04-14

Pedestrian Head Impact, Automated Post Simulation Results Aggregation, Visualization and Analysis using d3VIEW 2020-01-1330

Pedestrian head impact regulation mandates the reduction of head injuries, measured using Head-Impact-Criteria (HIC). Virtual tools driven design comprises of simulating the impact on the hood and post processing the results. Due to the high number of impact points, engineers spend a significant portion of their time in manual data management, processing, visualization and score calculation. Moreover, due to large volume of data transfer from these simulations, engineers face data bandwidth issues particularly when the data is in different geographical locations. This deters the focus of the engineer from engineering and also delays the product development process. This paper describes the development of an automated method using d3VIEW that significantly improves the efficiency and eliminates the data volume difficulties there by reducing the product development time while providing a higher level of simulation results visualization. This method significantly reduces post-simulation analysis time and completely eliminates the effort of manual data management and visualization. d3VIEW is tightly integrated with LS-DYNA and since raw LS-DYNA data is processed on HPC, the resulting output data stored in d3VIEW server is very small and thereby eliminates the data bandwidth throttling issue. Besides score calculation, the capability of d3view has been challenged to include an automatic opportunity chart generation to highlight the potential locations which require a minimal design change to improve overall score. To summarize, d3VIEW method provides significant benefit in reducing product development process and it is also an efficient guiding tool in pedestrian head impact analysis.

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