Multiobjective optimization design for vehicle occupant restraint system under frontal impact

Gu, Xianguang; Sun, Guangyong; Li, Guangyao; Huang, Xiaodong; Yong-chi, LI; Li, Qing

doi:10.1007/s00158-012-0811-7

Cited by 28 publications

(8 citation statements)

References 42 publications

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“…The use of crashworthiness optimisation techniques was not limited to finding the optimal shape of a simple TW tube but also it is expanded to include finding an optimal design of a complete part or system for automotive industry such as car door [250], car bumper beam [251], vehicle roof structures [252], vehicle front body structure [253], vehicle full body structure [247], [254]- [257], vehicle restraint system [258], vehicle side [259], frontal energy absorbing structure of subway vehicle [260], and railway vehicle driver's cab [261].…”

Section: Summary Of Optimisation Researchesmentioning

confidence: 99%

On the crashworthiness performance of thin-walled energy absorbers: Recent advances and future developments

Baroutaji

Sajjia

Olabi

2017

Thin-Walled Structures

515

135

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Over the past several decades, a noticeable amount of research efforts has been directed to minimising injuries and death to people inside a structure that is subjected to an impact loading.\ud \ud Thin-walled (TW) tubular components have been widely employed in energy absorbing structures to alleviate the detrimental effects of an impact loading during a collision event and thus enhance the crashworthiness performance of a structure.\ud \ud Comprehensive knowledge of the material properties and the structural behaviour of various TW components under various loading conditions is essential for designing an effective energy absorbing system.\ud \ud In this paper, based on a broad survey of the literature, a comprehensive overview of the recent developments in the area of crashworthiness performance of TW tubes is given with a special focus on the topics that emerged in the last ten years such as crashworthiness optimisation design and energy absorbing responses of unconventional TW components including multi-cells tubes, functionally graded thickness tubes and functionally graded foam filled tubes.\ud \ud Due to the huge number of studies that analysed and assessed the energy absorption behaviour of various TW components, this paper presents only a review of the crashworthiness behaviour of the components that can be used in vehicles structures including hollow and foam-filled TW tubes under lateral, axial, oblique and bending loading

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Section: Summary Of Optimisation Researchesmentioning

confidence: 99%

On the crashworthiness performance of thin-walled energy absorbers: Recent advances and future developments

Baroutaji

Sajjia

Olabi

2017

Thin-Walled Structures

515

135

View full text Add to dashboard Cite

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“…Under the frontal collision condition, the vehicle occupant protection system is designed with the multi-objective optimization method to improve the vehicle occupant protection system by Gu et.al [12]. Considering the lightweight, bus stiffness and intensity, rolling safety and other factors, Su et.al carried out the multiobjective optimization design of the bus body frame and the experiments at the same time [13]. The bus body weight decreased 2.7% to ensure the vehicle body rigidity and strength performance.…”

Section: Multi-objective Multidisciplinary Optimizationmentioning

confidence: 99%

Survey of optimization methods for BIW lightweight design

Zheyun

2017

MATEC Web Conf.

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Abstract. The body lightweight is important to the vehicle design and development, which has become one of the main research subjects in vehicle industries and research institutes. This paper systematically expounds the background and significance of the lightweight design of automobile, and systematically expatiates the implementation method of the light weight of the vehicle from the fields of lightweight materials, body structural optimization design, molding technology and new connecting technologies. The present situation of domestic and foreign research on lightweight design is introduced at the same time. On this basis, this paper establishes the process of multidisciplinary lightweight design of vehicles, and applies a variety of simulation and modeling tools into this process. The experiment results show the effectiveness and efficiency of the method

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“…Furthermore, the design variables and response quantities are mathematically modeled and used to replace the original FEM to improve the calculating speed. This method has been widely applied in the optimization and iterative calculation of complex models, such as optimization design of occupant restraint system for safety guarantying, 14 vehicle suspension parameters for ride comfort improving, 15 and cab structure for interior nose reducing. 16 This study aims to propose a new method of low-noise structure optimization in accordance with approximation model for heavy commercial vehicle and is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

Low-noise structure optimization of a heavy commercial vehicle cab based on approximation model

Zhi-yong

Zhang

Huang

et al. 2018

Journal of Low Frequency Noise, Vibration and Active Control

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Structure design for reducing noise is essential and widely studied because cab interior noise seriously affects the ride comfort of the driver and passengers, especially for heavy commercial vehicles. This paper proposes an enhancement investigation on the low-noise structure performance of a cab in a heavy commercial vehicle based on an approximation model. A series of vibroacoustic tests with varying running speeds are implemented first to acquire the vibration signals at four cab suspensions and the sound pressure signal at the right ear of the driver. The finite element model and structure-acoustic coupled model of the cab of a heavy commercial vehicle are established sequentially. When the vibration accelerations measured in the tests are converted into excitation signals using the cab structure-acoustic coupled model, the sound pressure of the right ear of the driver is predicted, and the accuracy of the cab structureacoustic coupled model is then verified. After panel acoustic contribution analysis, an approximation model of critical panel thickness and the peak noise near the right ear of the driver is established in accordance with the radial basis function. Genetic algorithm is utilized to solve an optimization model to obtain optimal panel thicknesses. By comparing the right ear sound pressure before and after optimization, the results confirm that optimized panel thicknesses can reduce sound pressure level of the critical frequency.

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Multiobjective optimization design for vehicle occupant restraint system under frontal impact

Cited by 28 publications

References 42 publications

On the crashworthiness performance of thin-walled energy absorbers: Recent advances and future developments

On the crashworthiness performance of thin-walled energy absorbers: Recent advances and future developments

Survey of optimization methods for BIW lightweight design

Low-noise structure optimization of a heavy commercial vehicle cab based on approximation model

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