Vehicle Front Structure Energy Absorbing Optimization in Frontal
Impact

Chen, Hao; Yang, Yali; Wang, Liangjie

doi:10.2174/1874155x01509010168

Cited by 11 publications

(6 citation statements)

References 5 publications

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“…De acuerdo a Chen et al (2015), respecto de los tipos de materiales empleados en las carrocerías, el acero ocupa el 75 % del peso total, seguido por aluminio, plásticos entre otros. La tabla 8, indica los diferentes rangos de límite elástico para diferentes tipos de acero empleados en la fabricación de una carrocería en un vehículo.…”

Section: Discussionunclassified

Análisis del material del habitáculo de seguridad de un vehículo liviano por método multicriterio

et al. 2020

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Existe una gran variedad de materiales disponibles que cuentan con diversas propiedades para que los diseñadores satisfagan los diferentes requerimientos de diseño. El presente estudio tuvo como objetivo evaluar las propiedades de los materiales relevantes disponible en el Ecuador a través de la aplicación del método de criterios como son: evaluación compleja proporcional (COPRAS), técnica para el orden de preferencia por similitud a solución real (TOPSIS), optimización multidisciplinar y solución de compromiso (VIKOR), con el fin de indicar cuál material sería un potencial sustituto del original. Se concluye que el acero 1045 es la mejor opción como sustituto para un habitáculo de seguridad, mientras que la aleación Aluminio-Magnesio, a pesar de ser un material ligero posee baja resistencia a las fuerzas de impacto.

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Section: Discussionunclassified

Análisis del material del habitáculo de seguridad de un vehículo liviano por método multicriterio

et al. 2020

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“…Structural deformation from the pure torsion case occurs when couple forces of 2,000 N are applied to the left and right front wheels (Figure 5a) while the rear wheels are constrained in all translational directions (Fang and Kefei, 2019). In the case of combined torsion load representing the occasion that the left front wheel falls into a pothole, the force twice the total body weight is applied to the left front wheel, whereas the other wheels are constrained (Chen et al, 2015) (Figure 5b). The mass of the other components is also considered to analyze the safety under the combined torsion case.…”

Section: Loading Conditions For Torsion Stiffnessmentioning

confidence: 99%

Optimizing stiffness and lightweight design of composite monocoque sandwich structure for electric heavy quadricycle

Homsnit,

Kongwat,

Ruangjirakit

et al. 2023

Lat. Am. j. solids struct.

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The lightweight design of electric heavy quadricycle (L7e) vehicles has contributed to energy savings and sustainable mobility. This study proposes an optimization methodology to design a monocoque sandwich structure under operating conditions for an L7e using a finite element model via HyperWorks. Woven fiberglass fabrics and high-density PVC foam are assigned as the face and core to construct the sandwich structure, respectively. Free-size optimization based on weight minimization is applied to obtain the suitable initial thickness of face and core structures in all components. Multi-objective size optimization is then performed by minimizing both mass and material cost to determine the optimal thickness of each layer. Finally, shuffle optimization is used to modify the stacking sequence for each component to maximize structural stiffness. The results indicate that the core thickness in the passenger compartment is sufficient to maintain stiffness while maintaining the structure's lightweight. However, shuffle optimization is insignificant for the current monocoque model, as the structural stiffness is only marginally improved after the process. Additionally, this study examines the optimized models for structural stiffness and discusses suitable procedures for designing a lightweight and safe electric vehicle.

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“…Thus, the frontal structure deformation can be directly observed and facilitates the optimization of the crashworthiness of the car body. Many researchers employ this simplified approach to optimizing bus, sedan, and sport utility vehicles [29][30][31]. However, most of them suggested a simplified sled method applicable to a single vehicle, rather than a method suitable to MPV, SUV, van, and sedan.…”

Section: Introduction mentioning

confidence: 99%

An FSRW numerical simplification approach for vehicle frontal crashworthiness analysis

Liang

Liu

et al. 2021

International Journal of Crashworthiness

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： Vehicle frontal crashworthiness analysis is an important topic in the field automotive community, as it relates to legislative requirements. Frontal crash models contain a large number of elements and therefore present a high computational cost, especially when performing crashworthiness structural performance optimisations. A new numerical methodology is proposed in this paper with the aim to increase computation speed by implementing a sub-modelling approach on the frontal structure-rear wheels (FSRW) method.In this new method, the vehicle body structure behind the rear seats is replaced by a point mass, with an equivalent mass to the rear structure removed, and attached to the rear frame of the front structure and its wheels. This new method was rigorously tested against validated full size vehicle computer models of different classes provided by NHTSA, and included MPV, SUV, van, and sedan, against fixed rigid barrier (FRB), small overlap and a mobile progressive deformable barrier (MPDB) tests. The research has demonstrated that this new sub-modelling approach correlated against all the full size NHTSA computer models in deformations, intrusions, velocities, and accelerations, as well as providing a runtime reduction between 7% and 23%. This new simplified method, which can be easily implemented, is innovative and will have an important impact vehicle design, as it will allow an easier use of optimisation techniques, which will lead to safer vehicles.

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Vehicle Front Structure Energy Absorbing Optimization in Frontal Impact

Cited by 11 publications

References 5 publications

Análisis del material del habitáculo de seguridad de un vehículo liviano por método multicriterio

Análisis del material del habitáculo de seguridad de un vehículo liviano por método multicriterio

Optimizing stiffness and lightweight design of composite monocoque sandwich structure for electric heavy quadricycle

An FSRW numerical simplification approach for vehicle frontal crashworthiness analysis

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