Optimal design of vehicle structure for improving small-overlap rating

Nguyen, Phu Thuong Luu; Lee, J. Y.; Yim, Hong Jae; Kim, Hyeon-Kook; Lee, S. B.; Heo, Seung-Jin

doi:10.1007/s12239-015-0098-y

Cited by 17 publications

(2 citation statements)

References 7 publications

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“…As research in this domain has deepened, several scholars have made significant strides in tackling this issue. By analyzing energy transfer pathways during crashes and optimizing vehicle structures, material thickness, and related factors, researchers have achieved notable improvements in terms of crash safety [32][33][34][35][36][37]. However, previous optimization studies have focused primarily on enhancing crash safety without adequately considering other critical vehicle properties.…”

Section: Introductionmentioning

confidence: 99%

Optimization Study of Driver Crash Injuries Considering the Body NVH Performance

Li,

Zhang,

Zhang

et al. 2023

Applied Sciences

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Optimal body structure design is a central focus in the field of passive automotive safety. A well-designed body structure enhances the lower threshold for crash safety, serving as a basis for the deployment of other safety systems. Frontal crashes, particularly those with an overlap rate below 25%, are the most frequent types of vehicular accidents and pose elevated risks to occupants due to variable energy absorption and force transmission mechanisms. This study aims to identify an optimized, cost-effective, and lightweight solution that minimizes occupant injuries. Using a micro-vehicle as a case study and accounting for noise, vibration, and harshness (NVH) performance, this paper employs Elman neural networks to predict key variables such as the first-order modes of the body, the body’s mass, and the head injury values for the driver. Guided by these predictions and constrained by the first-order modes and body mass, a genetic algorithm was applied to explore optimal solutions within the solution space defined by the body panel thickness. The optimized design yielded a reduction of approximately 173.43 in the driver’s head injury value while also enhancing the noise, vibration, and harshness performance of the vehicle body. This approach offers a methodological framework for future research into the multidisciplinary optimization of automotive body structures.

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Section: Introductionmentioning

confidence: 99%

Optimization Study of Driver Crash Injuries Considering the Body NVH Performance

Li,

Zhang,

Zhang

et al. 2023

Applied Sciences

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“…Based on the research results in [3][4][5], a small frontal collision is a very dangerous type of collision that has a great impact on the passenger's safe space. As a result, many studies have been conducted to improve the small car chassis in order to improve passenger safety in the event of a collision, such as Ref.…”

Section: Introductionmentioning

confidence: 99%

A Study on Small Vehicle Structure in Rear Under-Ride Impact by Using A CAE Based Methodology

Lưu

Anh

2022

J. Eng. Technol. Sci.

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This study simulated and evaluated the safety of a small car structure in a collision with the rear of a truck. The parameters of bumpers currently used in Vietnam were employed to build a model of the rear truck bumper. The setting of simulation conditions was based on the NCAP (New Car Assessment Program) crash test. According to actual crash conditions, a collision simulation was performed with different vehicle speeds from 40 to 60 km/h, corresponding to the case of a passenger vehicle moving in a city colliding with a truck standing still. In addition, the percentage of rear-end collision was also taken into account, just like in real-world collisions, at 25%, 50%, and full rear impact. The simulation results were analyzed and evaluated according to the IIHS rating (Institute Insurance for Highway Safety). The results from different case studies showed that the rear bumper typically used on trucks is only safe for passenger cars in a collision at a low speed of 40 km/h and that in a collision at a higher speed will affect the passenger’s safe space and cause high injuries and casualties. Therefore, it is necessary to improve safety by optimizing the rear bumper design and the frontal structure of the small car chassis.

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A Study on Car-To-Truck Rear Underride with and Without Protection Device

Lưu

2021

Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020)

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Optimal design of vehicle structure for improving small-overlap rating

Cited by 17 publications

References 7 publications

Optimization Study of Driver Crash Injuries Considering the Body NVH Performance

Optimization Study of Driver Crash Injuries Considering the Body NVH Performance

A Study on Small Vehicle Structure in Rear Under-Ride Impact by Using A CAE Based Methodology

A Study on Car-To-Truck Rear Underride with and Without Protection Device

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