Development and validation of rear impact computer simulation model of an adult manual transit wheelchair with a seated occupant

Salipur, Zdravko; Bertocci, Gina

doi:10.1016/j.medengphy.2009.10.009

Cited by 9 publications

(5 citation statements)

References 5 publications

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“…Our paediatric bed fall model was validated following a rigorous procedure, and was based on those originally described by DSouza and Bertocci (2010) and Salipur and Bertocci (2010). This validation procedure first qualitatively compared the event dynamics, followed by statistical methods to compare outcome measures between the simulation and physical experiments.…”

Section: Discussionmentioning

confidence: 99%

Paediatric bed fall computer simulation model development and validation

Thompson

Bertocci

2013

Computer Methods in Biomechanics and Biomedical Engineering

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Falls from beds and other household furniture are common scenarios stated to conceal child abuse. Knowledge of the biomechanics associated with short-distance falls may aid clinicians in distinguishing between abusive and accidental injuries. Computer simulation is a useful tool to investigate injury-producing events and to study the effect of altering event parameters on injury risk. In this study, a paediatric bed fall computer simulation model was developed and validated. The simulation was created using Mathematical Dynamic Modeling(®) software with a child restraint air bag interaction (CRABI) 12-month-old anthropomorphic test device (ATD) representing the fall victim. The model was validated using data from physical fall experiments of the same scenario with an instrumented CRABI ATD. Validation was conducted using both observational and statistical comparisons. Future parametric sensitivity studies using this model will lead to an improved understanding of relationships between child (fall victim) parameters, fall environment parameters and injury potential.

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Section: Discussionmentioning

confidence: 99%

Paediatric bed fall computer simulation model development and validation

Thompson

Bertocci

2013

Computer Methods in Biomechanics and Biomedical Engineering

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“…They recommend a range of 45 to 60 degrees as best for accommodating a range of occupant sizes using wheelchairs as seating. This model was also validated under rear impact conditions [38]. NHTSA performed crash testing in two vehicles equipped with wheelchairs in the driving position [40] to validate modeling performed at UMTRI [39].…”

Section: Computational Modelingmentioning

confidence: 99%

A Literature Review of Wheelchair Transportation Safety Relevant to Automated Vehicles

Klinich

Manary

Orton

et al. 2022

IJERPH

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This literature review summarizes wheelchair transportation safety, focusing on areas pertinent to designing automated vehicles (AVs) so they can accommodate people who remain seated in their wheelchairs for travel. In these situations, it is necessary to secure the wheelchair to the vehicle and provide occupant protection with a Wheelchair Tiedown and Occupant Restraint System (WTORS). For this population to use AVs, a WTORS must be crashworthy for use in smaller vehicles, able to be used independently, and adaptable for a wide range of wheelchair types. Currently available WTORS do not have these characteristics, but a universal docking interface geometry and prototype automatic seatbelt donning systems have been developed. In the absence of government regulations that address this situation, RESNA and ISO have developed voluntary industry standards to define design and performance criteria to achieve occupant protection levels for wheelchair-seated passengers that are similar to those provided by conventional vehicle seats.

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“…It has been shown that environmental characterizations as well as driver's have impacts on traffic crash injury [5]. A computer model and crash simulation of an manual wheelchair subjected to frontal impact has been developed and validated [6]. A novel material performance indices and a developed procedure to material selection for multi-material automotive bodies have been presented [7].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Thickness Influences on Energy Absorption for Side Doors and B Pillar in Euro NCAP Pole Side Impact Test

Lilehkoohi

Faieza

Sahari

et al. 2014

AMM

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To assess a car under the Euro New Car Assessment Program (Euro-NCAP), Adult Occupant Protection is one out of three parameters which need to be calculated with a weight factor of 50% while the other parameters, Child Occupant Protection and Pedestrian Occupant Protection, have a weight factor of 20%. The Pole Side Impact Test, beside two other tests, Side & Front Impact, is also required to calculate the Adult Occupant Protection. It shows how important the Pole Side Impact Test is and what an effective role it has in the car rating assessment. In this paper, the objective is to evaluate the effect of thickness on the energy absorbed by the side doors and the B pillar and its crashworthiness in a Pole Side Impact Test based on the Euro NCAP. In this matter, a vehicle model has been designed and prepared using CATIA and meshed using Hypermesh. Five thicknesses have been chosen including 0.6 mm, 1 mm, 1.2 mm, 1.4 mm and the original thickness of the side doors, 0.75 mm. The simulations have been repeated, using LS DYNA solver, assigning each of five thicknesses to the side doors and the B pillar of the vehicle. Initial conditions defined by the Euro NCAP, including velocity and directions, have been applied to the model. A total of 5 simulations have been conducted. The results showed that changing the thickness of the side doors and the B pillar does not necessarily have a direct influence on energy absorbed. The conclusion is that there are different proper thicknesses for each part which will result in optimized energy absorption.

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Development and validation of rear impact computer simulation model of an adult manual transit wheelchair with a seated occupant

Cited by 9 publications

References 5 publications

Paediatric bed fall computer simulation model development and validation

Paediatric bed fall computer simulation model development and validation

A Literature Review of Wheelchair Transportation Safety Relevant to Automated Vehicles

Investigation of Thickness Influences on Energy Absorption for Side Doors and B Pillar in Euro NCAP Pole Side Impact Test

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