Advances in Engineering Software
Automobile body reinforcement by finite element optimization
Finite Elements in Analysis and Design
Finite Elements in Analysis and Design
Finite Elements in Analysis and Design
A reduced beam and joint concept modeling approach to optimize global vehicle body dynamics
Finite Elements in Analysis and Design
Finite Elements in Analysis and Design
Beam Bounding Box - a novel approach for beam concept modeling and optimization handling
Finite Elements in Analysis and Design
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The paper proposes a methodology for the concept design of beam-like structures, joints and panels in a vehicle FE model, with the aim of enabling accurate NVH simulations of the Body in White (BIW) already in the initial phases of the vehicle design process. Concept models of beams and joints are created, respectively, by means of a geometric analysis of beam-member cross-sections and a static analysis of joints. Concept panels are modelled by coarsening the original FE mesh, while preserving the characteristics of these parts in terms of basic geometric features, such as shape and curvature. The proposed approach is illustrated by using an industrial case study, where simplified models of beams, joints and panels of the upper region of a vehicle's BIW are created and validated through full vehicle FE analyses. In line with the standards used by automotive manufacturers, two static load cases are defined and analyzed to assess the accuracy of the concept model in terms of static torsion and bending stiffness of the vehicle body.