Improved design of the main energy-absorbing automotive parts based on traffic accident analysis

Zhang, Xiao Yun; Jin, Xian; Li, Yuanyin; Gen-guo, LI

doi:10.1016/j.matdes.2007.01.022

Cited by 18 publications

(7 citation statements)

References 11 publications

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“…The deformation and damage of the vehicle body to absorb kinetic energy have been crucial aspects of the passive safety of a vehicle [11]. The energy absorption has been achieved from the perspective of vehicle design (engine hood hinges [12]), geometric profile (circular tubes [13]), and material science (e.g., epoxy-based composite [14], magnesium alloy [15]).…”

Section: Energy and Motor Vehicle Crashesmentioning

confidence: 99%

Approximation Framework of Embodied Energy of Safety: Insights and Analysis

2020

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Transportation safety, as a critical component of an efficient and reliable transportation system, has been extensively studied with respect to societal economic impacts by transportation agencies and policy officials. However, the embodied energy impact of safety, other than induced congestion, is lacking in studies. This research proposes an energy equivalence of safety (EES) framework to provide a holistic view of the long-term energy and fuel consequences of motor vehicle crashes, incorporating both induced congestion and impacts from lost human productivity resulting from injury and fatal accidents and the energy content resulting from all consequences and activities from a crash. The method utilizes a ratio of gross domestic product (GDP) to national energy consumed in a framework that bridges the gap between safety and energy, leveraging extensive studies of the economic impact of motor vehicle crashes. The energy costs per fatal, injury, and property-damage-only (PDO) crashes in gasoline gallon equivalent (GGE) in 2017 were found to be 200,259, 4442, and 439, respectively, which are significantly greater than impacts from induced congestion alone. The results from the motor vehicle crash data show a decreasing trend of EES per crash type from 2010 and 2017, due primarily in part to a decreasing ratio of total energy consumed to GDP over those years. In addition to the temporal analysis, we conducted a spatial analysis addressing national-, state-, and local-level EES comparisons by using the proposed framework, illustrating its applicability.

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Section: Energy and Motor Vehicle Crashesmentioning

confidence: 99%

Approximation Framework of Embodied Energy of Safety: Insights and Analysis

2020

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“…In case of frontal low-speed collision, the automobile energy-absorbing component absorbs impact energy and reduces the peak load of the impact mainly by the plastic deformation [5,6]. The automobile energy-absorbing component comprises a front longitudinal beam, a bumper beam, a crash-box and front and rear flange.…”

Section: Model Buildingmentioning

confidence: 99%

Influence of Material Properties on Automobile Energy-Absorbing Components Crashworthiness

Jie¹,

Ding²

2014

TOMEJ

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Abstract:In the present work, the simulation analysis of automobile energy-absorbing components was carried out using Finite Element (FE) method. The numerical simulations were carried out using the software LS-DYNA. Automobile energy-absorbing components usually were made of a metal thin walled tube. In the paper, several types of material properties were studied and compared. Results show that the material properties have influence to automobile energyabsorbing components crashworthiness.

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“…The component load conditions were derived from a full vehicle simulation. Zhang et al 28 uses the finite element method to analyse different crash conditions and design modification in order to improve the crashworthiness of the vehicle.…”

Section: Introductionmentioning

confidence: 99%

Racing car chassis optimization using the finite element method, multi-body dynamic simulation and data acquisition

Luque

Mántaras

Pello

2012

Proceedings of the Institution of Mechanical Engineers, Part P:

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This paper presents an optimization methodology applicable to racing car chassis. The proposed procedure is sequentially structured, and starts with analysis of an existing vehicle, goes through an intermediate prototype and finishes with a final design. It is applied to a real case, the redesign of a steel tubular chassis for the 'Copa de España de vehículos CM', as part of a full vehicle development. The dynamic response of the existing chassis is modelled using finite element application techniques for structural design and validated with lab tests. In this way, through various modifications using basic static load cases for primary optimization, a completely new design (intermediate) is defined. Then a prototype is built, instrumented and tested in real field conditions (road and circuit). With acquired data from the dynamic behaviour of the car (suspension, steering, engine and transmission, etc.), using multi-body dynamic simulation software, an optimized load case is put forward in order to refine the first prototype. The ultimate goal is a chassis with much increased torsional and bending stiffness, with minimum weight gain, with regard to its interaction with the suspension and steering systems and to the manufacturing feasibility. It is shown that, with an adequate chassis elements configuration, stiffness can be increased by a 300% with just a 5% weight gain. The proposed methodology can be extended to other design (or re-engineering) procedures with rigid limitations in time and resources.

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Improved design of the main energy-absorbing automotive parts based on traffic accident analysis

Cited by 18 publications

References 11 publications

Approximation Framework of Embodied Energy of Safety: Insights and Analysis

Approximation Framework of Embodied Energy of Safety: Insights and Analysis

Influence of Material Properties on Automobile Energy-Absorbing Components Crashworthiness

Racing car chassis optimization using the finite element method, multi-body dynamic simulation and data acquisition

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