Keywords
child ATD
CRS
Harmonic Dynamic System
multibody
osteogenesis imperfecta
How to Cite
Abstract
This research examines a 2D Harmonic Dynamic System (HDS) proposed to reduce the kinetic energy transferred to the child body in a motor vehicle crash with the purpose of its subsequent implementation for use in children with bone-degenerative diseases such as Osteogenesis Imperfecta (OI). The 3D model from the HDS was modified into a simplified 2D model that considers the components present in the XY plane such as rails, springs and shock absorbers that damping excessive movements along the X axis. The 2D multibody numerical analysis was conducted using WorkingModel® during an interval of 140 ms, the boundary conditions were in accordance with the United Nations Economic Commision for Europe UN Regulation No. 129 for a CRS frontal test evaluation (CRS). The kinetic behavior observed shows a great correlation between the 2D multibody test and the test evaluation from the literature. Although the results were satisfactory for the 2D case proposed, the multibody analysis needs to be revised in a 3D multibody test considering a more detailed CRS and HDS as well as components such seatbelt.
References
M. Gutiérrez, M. Molina, L. Prieto, J. Parra and A. Bueno, “Osteogénesis imperfecta: nuevas perspectivas,” Revista Española Endocrinología Pediátrica, vol. 4, suppl. no. 1, 107-118, May 2013, doi: 10.3266/RevEspEndocrinolPediatr.pre2013.Mar.160
A. Ibáñez and F. Hodgson, “Osteogénesis imperfecta,” Revista Médica Clínica Las Condes, vol. 32, no. 3, pp. 311-318, May 2021, doi: 10.1016/j.rmclc.2020.09.004
T. S. Pantoja and L. M. Chamorro, “Escoliosis en niños y adolescentes,” Revista Médica Clínica Las Condes, vol. 26, no. 1, pp. 99-108, Jan. 2015, doi: 10.1016/j.rmclc.2015.02.011
A. Wurtz, I. Hysi, L. Benhamed and R. Neviere, “Malformaciones de la pared torácica,” EMC - Aparato Locomotor, vol. 48, no. 4, pp. 1-13, Dec. 2015, doi: 10.1016/S1286-935X(15)74984-1
National Institutes of Health (NIH), “Vitamin D: Fact Sheet for Health Professionals.” National Institutes of Health. https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/
S. Roberts et al., “Ageing in the musculoskeletal system,” Acta Orthopaedica, vol. 87, no. sup363, pp. 15-25, Dec. 2016, doi: 10.1080/17453674.2016.1244750
MedlinePlus, “Aging changes in the bones- muscles - joints.” MedLine.gov. https://medlineplus.gov/ency/article/004015.htm
National Institute of Arthritis and Musculoskeletal and Skin Diseases, “Osteogenesis Imperfecta.” NIH.gov. https://www.niams.nih.gov/health-topics/osteogenesis-imperfecta/basics/symptoms-causes
Sunrise Medical, “Discapacidad física: Las nuevas técnicas de fisioterapia.” sunrisemedical.es. https://www.sunrisemedical.es/blog/ tecnicas-fisioterapia-discapacidad (accessed Jan. 14, 2024).
Addendum 128: UN Regulation No. 129, E/ECE/324/Rev.2/Add.128/Rev.4, United Nations Economic Commission for Europe, 2021.
J. Jiménez. “Viajar con el riesgo de usar el cinturón.” El País. https://elpais.com/politica/2015/10/06/actualidad/1444128218_442981.html
Vehicle anchorage system for child seat, by J. C. Neelis (2004, Mar. 18). Patent US 2004/0051356 A1 [Online]. Available: https://patents.google.com/patent/US6767057B2/en
Child Seat having a Crush Zone, by L. C. Strong (2013, Aug. 06). Patent US 8500196 B2 [Online]. Available: https://portal.unifiedpatents.com/patents/patent/US-8500196-B2
Kinetic Child Restraint Device, by J. Guenther (2003, Oct. 21). Patent US 6634708 B2 [Online]. Available: https://portal.unifiedpatents.com/patents/patent/US-6634708-B2
Child restraint device with energy absorbing regions, by D. Clement (2007, Sep. 13). Patent WO-2007103641-A2 [Online]. Available: https://portal.unifiedpatents.com/patents/patent/WO-2007103641-A2.
L. Martínez, M. de Loma Ossorio, M. Espantaleón, and C. R. Torres, “Estudio antropométrico en sujetos con Osteogénesis Imperfecta para la definición de propiedades de los maniquíes antropomorfos de impacto,” in V Reunión del Capítulo Español de la Sociedad Europea en Biomecánica, Madrid, Spain, Nov. 2015.
R. Turchi, W. Altenhof, T. Kapoor, and A. Howard, “An investigation into the head and neck injury potential of three-year-old children in forward and rearward facing child safety seats,” International Journal of Crashworthiness, vol. 9, no. 4, pp. 419-431, Aug. 2004, doi: 10.1533/ijcr.2004.0300
Humanetics, “Hybrid III Children Series,” humaneticsgroup.com. https://www.humaneticsgroup.com/products/anthropomorphic-test-devices/child/hybrid-iii-childrenseries/3-year-old (accessed, Feb. 22, 2025).
M. Á. Martínez Miranda, C. R. Torres San Miguel and J. A. Flores Campos and L. Martínez Sáez, “Coupling Device for Child Restraint System (CRS) for Infants Affected With Osteogenesis imperfecta: design and numerical assessment,” 26th in International Technical Conference on the Enhanced Safety of Vehicles (ESV): Enabling a Safer Tomorrow, Eindhoven, Jun. 2019.
M. Á. Martínez Miranda, C. R. Torres San Miguel, J. A. Flores Campos and M. Ceccarelli, “Numerical Simulation of a 2D Harmonic Oscillator as Coupling System for Child Restraint Systems (CRS),” in Advances in Italian Mechanism Science, V. Niola and A. Gasparetto, Ed., Cham: Springer International Publishing, 2021, pp. 492-502.
I. L. Cruz Jaramillo, J. L. Torres Ariza, M. A. Grave Capistrán, E. A. Alcántara Arreola, C. A. Espinoza Garcés, and C. R. Torres San Miguel, “Numerical Dolly Rollover Evaluation Using a Damping-Harmonic System with a Low Back Booster to Reduce Injuries in a Six-Year-Old Child,” Safety, vol. 10, no. 2, p. 53, Jun. 2024, doi: 10.3390/safety10020053
D. Kallieris, J. Barz, G. Schmidt, G. Heess, and R. Mattern, “Comparison Between Child Cadavers and Child Dummy by Using Child Restraint Systems in Simulated Collisions,” SAE Technical Paper 760815, Jan. 1976, doi: 10.4271/760815
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