Topography Optimization of Automobile Seat Belt Bracket

Zhao, Fei; Jiao, Hongyu

doi:10.2991/mecae-17.2017.2

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…In dynamics, there are many situations that lead to the study of accelerations with rapid variation. Frontal collisions and shocks are such events [44][45][46][47]. In this paper, it is proposed the study the racing vehicles used in Formula Student.…”

Section: Introductionmentioning

confidence: 99%

Three-Point Safety Polymeric Belt Webbing versus Four-Point Belt for a Race Car in Frontal Crashes

Itu,

Vlase

2023

Materials

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Polyester is currently the main material used for the manufacture of safety belts used in car transport for the protection of passengers and the driver. The seat belt is the main passive safety element used in vehicle engineering. In this work, the behavior of two safety belts, one with three-point fastening and the other with four-point fastening, which equip the seat of a racing car used in Formula Student for use in a frontal impact with a vertical wall. A model with finite elements is used to describe the entire car–driver shock-absorber assembly. The von Mises stresses calculated for both cases under consideration are below the tensile strength. The tensions arising in the belt and the accelerations required at various points of the driver’s body are determined by both the properties of the utilized polyester and the chosen construction variant. The obtained results justify the use of the three-point and four-point belt in the cases of both common and race cars.

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Section: Introductionmentioning

confidence: 99%

Three-Point Safety Polymeric Belt Webbing versus Four-Point Belt for a Race Car in Frontal Crashes

Itu,

Vlase

2023

Materials

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Response of safety belt webbing used for formula student race car in a frontal collision

Vlase,

Itu,

Marin

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part L:

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A particularly important element for ensuring the passive safety of a vehicle is the seat belt. In automotive engineering, the study of this subassembly is given special attention, because it plays a key role among the multiple safety systems, active and passive, that currently equip a vehicle. The paper studies several ways in which belt webbing can be damaged during use and how these defects can influence the behavior of the webbing. For this purpose, using the Finite Element Method (FEM) based on a mechanical model that considers the vehicle-driver-seat belt assembly, the forces that appear in the seat belt in the event of a frontal collision are determined. Experimental determinations carried out in the laboratory by the authors provide the mechanical properties modified following the failures. By introducing these mechanical properties into the developed model, it will be determined how the safety belt webbing responds in the event of a collision with a wall. A comparison is made between the behavior of the “new state” belt and one with defects in order to estimate the damage that can be caused by the appearance of the defects considered in the work.

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Effects of Seat Belts and Shock Absorbers on the Safety of Racing Car Drivers

et al. 2022

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This paper aimed to study the behavior of a body (dummy) that was in a race car in the event of a frontal collision with a wall in order to see what loads were acting on the dummy. Based on a complex car model, equipped with two safety system seat belts and a shock absorption system, the behavior of the dummy was obtained following frontal collision of the car–dummy assembly. The accelerations were obtained at different points of the dummy’s body and the force that appeared on the seat belts were determined. The Gibbs–Appell method was used to assess the response of the system based on the equations of motion in a problem involving shocks. This paper demonstrates that the revisited old principle of mechanics can offer an interesting and convenient means to obtain results in a short time. FEM and Altair Hyperworks software II was used to model the system. It can be used to determine whether a seat belt is able to work if it has defects during use, such as scratches, cigarette burns or animal bites.

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Topography Optimization of Automobile Seat Belt Bracket

Cited by 4 publications

References 6 publications

Three-Point Safety Polymeric Belt Webbing versus Four-Point Belt for a Race Car in Frontal Crashes

Three-Point Safety Polymeric Belt Webbing versus Four-Point Belt for a Race Car in Frontal Crashes

Response of safety belt webbing used for formula student race car in a frontal collision

Effects of Seat Belts and Shock Absorbers on the Safety of Racing Car Drivers

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