Comparison of the optimum designs of center pillar assembly of an auto-body between conventional steel and ahss with a simplified side impact analysis

Bae, Gihyun; Huh, Hoon

doi:10.1007/s12239-012-0017-4

Cited by 14 publications

(3 citation statements)

References 4 publications

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“…Such vehicles require stronger and lighter materials (Bae and Huh, 2012;Cho et al, 2013). One of the new market requirements in the design of body panels for vehicles and various other industries is the development of sheet metal forming technologies that can optimize the performance of the panels.…”

Section: Introductionmentioning

confidence: 99%

Frictional characteristics of steel sheets used in automotive industry

Trzepieciński

Bazan

Lemu

2015

Int.J Automot. Technol.

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In this paper the results of experimental tests aimed to determine the friction coefficient in sheet metal forming operations for various sheet metal materials and at different operative conditions are presented. The research has considered the frictional characterization of three kinds of drawing quality steels that are commonly used in automotive industry. These are a drawing quality steel (DQ), a deep drawing quality steel (DDQ), and extra deep drawing quality steel (EDDQ). For measurement of the sheet surface topography, a 3D stylus instrument Alicona InfiniteFocus was used. To determine the friction coefficient three tribological tests, i.e. a strip drawing test, a draw bead test and a pin-on-disc tribometer, have been conducted. The experimental results have ascertained several relationships showing the effect of sheet metal surface roughness, lubricant conditions and sheet orientation on the value of friction coefficient in sheet metal forming processes. The results further showed that the surface topography and sample orientation in the rolling direction of the sheet are significant factors that influence the friction coefficient. It was found that the tested steel sheets, selected from automotive industry applications, exhibit anisotropic resistance to the friction corresponding to the measured orientation in relation to the rolling direction of the sheet.

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Section: Introductionmentioning

confidence: 99%

Frictional characteristics of steel sheets used in automotive industry

Trzepieciński

Bazan

Lemu

2015

Int.J Automot. Technol.

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“…Roll forming technology has been widely applied in the automotive industry due to its various advantages, including high production speed, reduced tooling cost, and improved quality (Bae and Huh, 2012). The roll forming process requires a cutting operation to separate a long formed strip at a desired length.…”

Section: Introductionmentioning

confidence: 99%

Development of a flexible roll forming machine for cutting curved parts with virtual prototyping technology

Park

Dang

Nguyen

2019

JAMDSM

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Predicting machine tool performance at the design stage is one way to resolve the time issue and achieve cost savings. Our objective in the present work was to develop a new roll forming machine for curved products comprising a servo motor, ball screw, and rolling-element linear guide, with the support of virtual prototyping technology. First, a multibody simulation model was developed based upon the machine concept to investigate machine dynamic behavior in real time. Then, we proposed an adaptive sliding-mode PID-based controller (ASMPID) to control the manufacturing process. We performed co-simulation between the mechanical structure and the virtual controller to investigate the head unit trajectory and to identify optimal control parameters. Finally, we manufactured a prototype machine to evaluate the machine accuracy and the benefits of the new system. The results indicated that the proposed model including the mechanical structure and the intelligent controller was effective and feasible for designing the roll forming machine. We expect this work to improve the prototyping efficiency of new rolling machines.

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“…They compared the difference among using warm forming aluminum alloy, mild aluminum alloy, and mild steel as the material of the front body parts in the frontal impact simulation of a light car. Bae and Huh (2012) performed thickness optimization of center pillar assembly using a response surface methodology. The crashworthiness of optimum designs with conventional steel and advanced high-strength steel were compared using the full vehicle analysis.…”

Section: Introductionmentioning

confidence: 99%

Finite element based improvement of a light truck design to optimize crashworthiness

Chen

Wang

et al. 2015

Int.J Automot. Technol.

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Occupant protection of vehicle cab is required for all the commercial vehicles. According to ECE R29-03 amendments, the simulation methods of the front pillar impact test and the side 20 o pendulum impact of the roof strength test for a light truck with a gross mass not exceeding 7.5t are proposed. In this study, a reliable finite element model of a light truck is built by using its CAD model. The finite element model is verified against cab modal test and frontal impact test. Then two crash tests are simulated to evaluate the survival space by examining the contact between the deformed cab and a prescribed manikin model. In the front pillar impact test, the deformed cab is predicted to contact with the manikin. In the roof strength test, the minimum distance between the deformed cab and the manikin is predicted to be 75.3 mm, which does not satisfy requirements either. To enhance the crashworthiness of the truck, some structural improvements are designed such as filling structural foam in the A-pillars and the side panels, adding a roof crossbeam, and reinforcing the rear wall of cab. The simulation results of the improved cab structure show that the cab stiffness is improved, the energy absorption is more homogeneous and there is no penetration into the survival space.

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Comparison of the optimum designs of center pillar assembly of an auto-body between conventional steel and ahss with a simplified side impact analysis

Cited by 14 publications

References 4 publications

Frictional characteristics of steel sheets used in automotive industry

Frictional characteristics of steel sheets used in automotive industry

Development of a flexible roll forming machine for cutting curved parts with virtual prototyping technology

Finite element based improvement of a light truck design to optimize crashworthiness

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