A child seat numerical model validation in the static and dynamic work conditions

Baranowski, Paweł; Damaziak, Krzysztof; Małachowski, Jerzy; Mazurkiewicz, Łukasz; Muszyński, A.

doi:10.1016/j.acme.2014.07.001

Cited by 30 publications

(19 citation statements)

References 9 publications

(9 reference statements)

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“…Car seats designed for children are highly effective in reducing injury to child occupants. It has been reported that a proper child restrain can lead to approximately 60% of the reduction in deaths [35][36][37]. Yet, little attention has been drawn to the VRUs who are children transported in child seats mounted on the bicycle [38].…”

Section: Child On Bicycle-mounted Seat Restrain Regulationsmentioning

confidence: 99%

Method to Assess and Enhance Vulnerable Road User Safety during Impact Loading

Ptak

2019

Applied Sciences

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Every year approximately 1.35 million people die as a consequence of road accidents. Almost 50% of road fatalities are vulnerable road users (VRUs). This research reviews the history of traffic safety for VRUs, presents an interesting insight into the statistics and evaluates the current legislation in Europe for pedestrians, cyclists, children on bicycle-mounted seats and motorcyclists in terms of impact situations and applied criteria. This enabled the author to have a better perspective on how the VRUs’ safety is currently verified. Furthermore, the VRU safety requirements are contrasted with the author’s research, which is mainly focused on VRU’s head biomechanics and kinematics. Finally, a new coherent method is presented, which encompasses the sub-groups of VRUs and proposes some improvements to both the regulations as well as technical countermeasures to mitigate the injuries during an impact. This study highlights the importance of numerical methods, which can serve as a powerful tool to study VRUs’ head injuries and kinematics.

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Section: Child On Bicycle-mounted Seat Restrain Regulationsmentioning

confidence: 99%

Method to Assess and Enhance Vulnerable Road User Safety during Impact Loading

Ptak

2019

Applied Sciences

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“…In the case of a rear-mounted carrier, the baby rolls over the bonnet, leading to the possibility of head impacts in the occipital region. This might be happening against the backrest, as far as the seatbelts are fastened properly and the length of the backrest is in accordance to the child height (Baranowski et al 2015). This raises the necessity of keeping the child consequently in its seating position over the whole impact scenario.…”

Section: Rear-end Crash Scenariomentioning

confidence: 99%

Child Safety on Various Bicycle-Mounted Seats During Vehicle Impact

et al. 2019

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This research addresses an important gap in the state of the art by investigating the safety of vulnerable road users – children transported on bicycle seats. The article focuses on three forms of bicycle-mounted child seats and their kinematics during an accident scenario involving a motor vehicle. The front, rear-frame and rear-rack mounted child seat mounting configurations were considered in this study. The research covers the impact of a sports sedan vehicle against a bicycle equipped with the child seat. The assessment of the child safety was done through numerical simulations by coupling the codes of MADYMO and LS-DYNA. The after-impact kinematics for various baby carriers is presented with the emphasis on child’s head and neck injuries. The results were compared to the full-scale test available in the literature. The findings prove a low protection level for the child provided by the bicycle carriers in all considered cases. The study is further devoted to directions of increasing child safety in this means of transportation.

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“…The material properties for steel, polyamide, polypropylene (tiplen), seatbelts, and foams were acquired experimentally and description of each test can be found in Baranowski et al [23] and Muszynski [38]. Material characteristics and properties associated with different parts of the CRS are listed in Table 1.…”

Section: Numerical Simulation Of Improved Crsmentioning

confidence: 99%

“…A comparison of the basic (unmodified) CRS and the modified CRS concept are provided proving that the energy dissipation mechanism, with a principle of operation based on plastic deformation of a wire bent, reduces forces acting on a child body. In this study, finite element analyses (FEA), which have already proven their effectiveness in investigating many crash scenarios, were adopted [10,[22][23][24]. Only numerical studies of the CRS concept with dissipation system are presented without any validation data.…”

Section: Introductionmentioning

confidence: 99%

Improved child-resistant system for better side impact protection

Mazurkiewicz

Baranowski

Karimi

et al. 2018

Int J Adv Manuf Technol

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The article presents a new solution of child-resistant systems to improve the safety of children transported in motor vehicles subjected to a side impact during a vehicle crash. The proposed concept works by means of implementation of an energy dissipation mechanism acting between a child restraint system anchorage and a restraint system seat. The effectiveness of the proposed system is evaluated using numerical analyses of a simplified basic model as well as more complex mechanical design of the mechanism. The latter is analyzed as a part of the child restraint system (CRS) together with a deformable model of an anthropomorphic test device of Q3 series. Tests outcomes clearly show a positive effect of application of the proposed energy dissipation system resulting in reduction of head and thorax acceleration and influencing a lower factor (index) of the head injury criteria. The presented solution shows that there is still a room for improvement of young passengers safety.

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A child seat numerical model validation in the static and dynamic work conditions

Cited by 30 publications

References 9 publications

Method to Assess and Enhance Vulnerable Road User Safety during Impact Loading

Method to Assess and Enhance Vulnerable Road User Safety during Impact Loading

Child Safety on Various Bicycle-Mounted Seats During Vehicle Impact

Improved child-resistant system for better side impact protection

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