A Structural Design of a Child Seat Based on Morphological Elements and Ergonomics

Jiang, Xiaoshuo; Meng, Xiangjia

doi:10.1155/2022/1792965

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…High deceleration transmitted to child occupant on impact lead to injuries especially to head, neck and chest. Studies on child occupant is focused on restrained system design (Jermakian & Edwards, 2017;Jiang, 2022;Wu et al 2023) with little attention to effect of speed on the injury outcomes.…”

Section: Introductionmentioning

confidence: 99%

Effect of vehicle speed on injury of child passenger in frontal crashes

Rafukka

2024

dujopas

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Speed is major cause of death to vehicle occupants especially children. Studying effect of speed on child injury severity is crucial to establishing safety regulations. This work investigates the effect of vehicle speed on the severity of injury sustained by three-year-old (3YO) children. Restrained 3YO child dummy Finite Element (FE) model was used to conduct crash simulation at impact speed of 40km/h, 46 km/h and 48 km/h in Ford Taurus FE model using LS DYNA code. Vehicle deceleration was found to increase with increase in speed. Head Injury Criteria (HIC36), HIC15, chest acceleration (CA), chest severity index (CSI), chest deflection (CD) and neck moment (NM) were evaluated and compared with National Highway Traffic Safety Administration (NHTSA) threshold. It was found that the injury parameters sustained by 3YO child increased with increase in speed. HIC36 was found to be above threshold for 48km/h and 46km/h. Speed of 40 km/h had all the injury values below the threshold. Chest deflection was lower than the threshold for all the three speeds. Chest acceleration and neck moment were also presented and their values also increase with speed, though, NHTSA doesn’t capture their threshold. The study disseminates information on the effect of speeding on child injuries in frontal crashes for road safety agents and vehicle designers and users. Limiting vehicle speed is therefore crucial to child occupant protection.

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Section: Introductionmentioning

confidence: 99%

Effect of vehicle speed on injury of child passenger in frontal crashes

Rafukka

2024

dujopas

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Design and analysis of folding mechanism for automotive seats based on space maximization

Zhang,

Huang,

et al. 2024

Vib. proced.

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To solve the problem of maximizing space utilization of car folding seats within limited spatial constraints, a design method for space-maximizing four-bar folding seat hinges is proposed. First, we will investigate the existing types of car folding seats, identify the mainstream configurations, and determine the optimal position of the four-bar linkage hinge point based on the constraints present within the car using theoretical analysis methods. Secondly, kinematic and dynamic models of the four-bar linkage mechanism are established, followed by the formulation of kinematic and dynamic equations. Finally, numerical methods are employed to solve these equations and obtain the kinematic and dynamic characteristics. The results indicate that the design method proposed in the article, which aims to maximize the space of the hinge four-bar folding seat, is efficient and feasible. This approach optimizes the utilization of interior space and enhances passenger comfort while accommodating the folding function of the seat within the existing vehicle environment. This method holds significant engineering implications for the design of folding seats in similar types of vehicles.

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A Structural Design of a Child Seat Based on Morphological Elements and Ergonomics

Cited by 2 publications

References 18 publications

Effect of vehicle speed on injury of child passenger in frontal crashes

Effect of vehicle speed on injury of child passenger in frontal crashes

Design and analysis of folding mechanism for automotive seats based on space maximization

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