A study to maximize the crash energy absorption efficiency within the limits of crash space

Kim, Bae-Young; Jeong, Chang Hyun; Kim, Si-Woo; Suh, Myung‐Won

doi:10.1007/s12206-012-0232-y

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…Al-Thairy and Wang [3] developed a simplified analytical model to predict the critical velocity of transverse impact on steel columns. Another study that looks at maximizing the crash energy absorption has been done by Kim et al [4] which optimizes the design of the motor room in order to maximize energy absorption. Liao et al [5] also optimized a vehicle design to increase the energy absorption of the vehicle during frontal and oblique crashes.…”

Section: Introductionmentioning

confidence: 99%

Firefly Optimization and Mathematical Modeling of a Vehicle Crash Test Based on Single-Mass

Klausen

Tørdal

Karimi

et al. 2014

Journal of Applied Mathematics

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In this paper mathematical modeling of a vehicle crash test based on a single-mass is studied. The model under consideration consists of a single-mass coupled with a spring and/or a damper. The parameters for the spring and damper are obtained by analyzing the measured acceleration in the center of gravity of the vehicle during a crash. A model with a nonlinear spring and damper is also proposed and the parameters will be optimized with different damper and spring characteristics and optimization algorithms. The optimization algorithms used are interior-point and firefly algorithm. The objective of this paper is to compare different methods used to establish a simple model of a car crash and validate the results against real crash data.

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Section: Introductionmentioning

confidence: 99%

Firefly Optimization and Mathematical Modeling of a Vehicle Crash Test Based on Single-Mass

Klausen

Tørdal

Karimi

et al. 2014

Journal of Applied Mathematics

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“…Hence, identification of important factors on complex design problem is needed to reduce the dimensionality of MDO problem. Many sensitivity analysis methods are applied to engineering problems to identify the important parameters in design optimization problems [1,6,7]. Global sensitivity analysis offers a comprehensive approach to the model analysis and evaluates the effect of a factor while all other factors also are varied [1,2].…”

Section: Introductionmentioning

confidence: 99%

Enhance Derivative Design Considering Global Sensitivity of Design Parameters

Park

Behdinan

Chung

et al. 2013

PCEEA

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An engineering product design considers derivatives to reduce the life cycle cost and to increase the efficiency on operation when it has new demands. The proposed design process in this study obtains derivative designs based on sensitivity of design variable. The efficiency and accuracy of the derivative design process can be enhanced by implementing global sensitivity analysis. Sensitivity analysis sensors the design variables accordingly and variables with low sensitivity for objective function can be neglected, since computational effort and time is not necessary for a design with less priority. In this research, e-FAST method code for global sensitivity analysis module was developed and implemented on Multidisciplinary Design Optimization (MDO) problem. The wing design was considered for MDO problem that used aerodynamics and structural disciplines. The global sensitivity analysis method was applied to reduce the number of design variables and Collaborative Optimization (CO) was used as MDO method. This research shows the efficiency of reduction of dimensionality of complex MDO problem by using global sensitivity analysis. In addition, this result shows important design variables for design requirement to student when they solving design problem.

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“…Liao et al [10] optimized a vehicle design to increase the energy absorption during frontal and oblique crash. Kim et al [11] optimize the energy absorption with respect to the size of the motor room. In Kirkpatrick et al [12], a Ford Crown Victoria is subject to a tear-down, and all the important structural components are digitalized.…”

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confidence: 99%

Development and validation of a nonlinear dynamic impact model for a notch impact

Jecmenica

Melteig

Robbersmyr

et al. 2015

Int J Adv Manuf Technol

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Finite element simulations are being more and more applied when studying the crash-worthiness of vehicles during impact. This paper deals with setting up such a simulation and discusses several ways to simplify and verify a simulated crash. For this purpose, a notch impact-testing machine will be released from a certain angle and crash into a model constructed with three different wall thicknesses. The plastic and elastic deformation is measured in the front of the model and is then used for validation of the simulation. In the end, the simulation was found to be in good agreement with the real crash data.

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A study to maximize the crash energy absorption efficiency within the limits of crash space

Cited by 9 publications

References 3 publications

Firefly Optimization and Mathematical Modeling of a Vehicle Crash Test Based on Single-Mass

Firefly Optimization and Mathematical Modeling of a Vehicle Crash Test Based on Single-Mass

Enhance Derivative Design Considering Global Sensitivity of Design Parameters

Development and validation of a nonlinear dynamic impact model for a notch impact

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