409.pdf - Katkar et al International Journal of Advanced Engineering Research and Studies E-ISSN2249–8974 Review Article DESIGN ENHANCEMENT FOR BUMPER

409.pdf - Katkar et al International Journal of Advanced...

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Katkar et al., International Journal of Advanced Engineering Research and Studies E-ISSN2249–8974 Int. J. Adv. Engg. Res. Studies/III/II/Jan.-March.,2014/72-74 Review Article DESIGN ENHANCEMENT FOR BUMPER OF A PASSENGER CAR USING EXPLICIT SOLVER IN FINITE ELEMENT ANALYSIS FOR EFFECTING COMPLIANCE TO THE STANDARD PRACTICES IN THE INDUSTRY 1 Amit Dattatray Katkar, 2 J.S.Bagi, 3 Swapnil S. Kulkarni Address for Correspondence 1 M.E. CAD CAM CAE- pursuing, 2 Asst.Prof. (Dept. of Production Engineering, KIT’s College of Engineering, Kolhapur 3 Director-Able Technologies India Pvt. Ltd., Pune INTRODUCTION The development process of automobiles with regard to crashworthiness behaviour depends strongly on virtual testing and simulation. Thus, development work based on cost intensive prototype construction and testing has been extensively reduced for the body in white as well as for the exterior and interior trim. The dramatic shortening of the total development time during the last years needs a much more front loaded development process which has been realized by numerical simulation. The numerical simulation accompanying the design of a car may be divided into three main phases – the concept, the series development and the optimization phase. During the concept phase the passive safety concept and its needed packaging space have to be determined. The series development is finished by prototype testing which should confirm the virtual development in an ideal case. Optimization work should close the development before the car’s launch. During these phases the focus of the numerical simulation changes from a more global view to a very detailed local analysis. The aim of this work is to study front bumper of one of the existing passenger car in Indian market. Design modifications can be suggested or tried out on following basis: Performance related parameters of bumper Deformation/ Energy absorption capability Shape/ Size/ Thickness (Geometry) The study will focus on modifying few of above stated parameters to suggest improvements in existing bumper of passenger car present in Indian markets. First, study will focus on studying existing design and based on observations, design improvements will be suggested. Modified front bumper design will be tested using FEM software for deflection, impact force and stress distribution. Results of modified bumper will be compared against existing design. LITERATURE REVIEW Few of the literatures at the initial study are cited below. Javad Marzbanrad. et al., Design and analysis of an automotive bumper beam in low-speed frontal crashes [1], studied the most important parameters including material, thickness, shape and impact condition for design and analysis of an automotive front bumper beam to improve the crashworthiness design in low-velocity impact. The simulation of original bumper under condition impact is according to the low-speed standard of automotives stated in E.C.E. United Nations Agreement, Regulation no. 42, 1994. The bumper beam analysis is accomplished for
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