International Journal of Vehicle Structures and Systems

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Improvements in Vehicle Stiffness by Adding Internal Reinforcements


Affiliations
1 Dept. of Automobile Engg., Hindustan Institute of Tech. and Science, Chennai, India
2 Dept. of Mech. Engg., Hindustan Institute of Tech. and Science, Chennai, India
3 Dept. of Automobile Engg., BS Abdur Rahman University, Vandalur, India
4 School of Mech. Engg., Sathyabama University, Chennai, India
 

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The world’s climatic conditions rises and there is a demand for environment friendly vehicle designs. The automobile industry strives hard to ensure low carbon emissions. This refers to the mass reduction and fuel consumption. This paper investigates to achieve the overall Body-in-white (BIW) bending and torsion stiffness performance using Topology optimization and light weight internal reinforcements. The potential opportunity of achieving light weight structure using the efficient way of defining the internal reinforcements has been investigated. BIW at the conceptual design phase has been considered for the research. Topology optimization was performed considering the roof rail and the rocker as the design space with an approach of achieving the improved torsion and bending stiffness performance. The optimized bulk head design locations have improved the BIW stiffness performance with minimal mass increase in the BIW. This method can be widely used at various stages of the BIW design to identify the weaker sections and then design the load path using internal reinforcements effectively. The optimized internal reinforcements has achieved higher torsion and bending performance with minimal mass addition.

Keywords

Design of Experiments, Optimization, Body-In-White Stiffness, Multi Objective, Bending, Torsion, Bulk Heads.
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PDF Views: 184




  • Improvements in Vehicle Stiffness by Adding Internal Reinforcements

Abstract Views: 415  |  PDF Views: 184

Authors

Rajasekaran Mohan
Dept. of Automobile Engg., Hindustan Institute of Tech. and Science, Chennai, India
V. Hariram
Dept. of Mech. Engg., Hindustan Institute of Tech. and Science, Chennai, India
M. Subramanian
Dept. of Automobile Engg., BS Abdur Rahman University, Vandalur, India
S. Padmanabhan
School of Mech. Engg., Sathyabama University, Chennai, India

Abstract


The world’s climatic conditions rises and there is a demand for environment friendly vehicle designs. The automobile industry strives hard to ensure low carbon emissions. This refers to the mass reduction and fuel consumption. This paper investigates to achieve the overall Body-in-white (BIW) bending and torsion stiffness performance using Topology optimization and light weight internal reinforcements. The potential opportunity of achieving light weight structure using the efficient way of defining the internal reinforcements has been investigated. BIW at the conceptual design phase has been considered for the research. Topology optimization was performed considering the roof rail and the rocker as the design space with an approach of achieving the improved torsion and bending stiffness performance. The optimized bulk head design locations have improved the BIW stiffness performance with minimal mass increase in the BIW. This method can be widely used at various stages of the BIW design to identify the weaker sections and then design the load path using internal reinforcements effectively. The optimized internal reinforcements has achieved higher torsion and bending performance with minimal mass addition.

Keywords


Design of Experiments, Optimization, Body-In-White Stiffness, Multi Objective, Bending, Torsion, Bulk Heads.

References





DOI: https://doi.org/10.4273/ijvss.9.2.02