Design and Optimization of Front Underrun Protection Device

Abstract

Front Under run Protection Device is tested for car occupant safety by performing Crash analysis with 800 kg (mass of the car) hitting the Front Underrun Protection Device with certain velocity and analyzing its performance and changing design to improve the crash results. Optimization is carried out to improve the crash results for safety of passenger. To reduce number of iterations during the development process, the computational simulation method is used in Front Underrun Protection Device analysis for impact loading. An explicit finite element code like LS Dyna is used for the simulation. This paper explains the FE analysis of Front Underrun Protection Device for impact loading. All the results obtained from the CAE analysis are evaluated against the requirements of IS 14812-2005 which could reduce the process development time and cost. Unigraphics(NX.8) for modeling Front Underrun Protection Device and Preprocessing in Hypermesh and LS DYNA for Crash Analysis (solving), results are viewed in Hyper view.Altair Optistruct is used for weight reduction and change in design of Front under run protection device.