Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Assessment of Injury Probability in Aircraft Passengers During Emergency Landing Considering Vertical and Longitudinal Accelerations
Submission Author:
Fábio Matiello , RS
Co-Authors:
Fábio Matiello, Tales de Vargas Lisbôa, Rogério Marczak
Presenter: Fábio Matiello
doi://10.26678/ABCM.COBEM2019.COB2019-0574
Abstract
Airliners have been incrementing their profit by maximizing aircraft passenger occupation. This is evident by the progressive decrease in the pitch (distance between seats) in commercial aircrafts during the last decades. This work analyses, using numerical methods, how the pitch value is reflected in the passenger safety, by using dynamic simulations of different configurations. A test dummy is simulated in seated position with fastened seatbelt. Another seat containing a plastic joint is used ahead of the dummy. The use of a seat structure able to deform plastically along with horizontal and vertical imposed accelerations brings the proposed analysis closer to the crash-landing condition than most previous studies. Head injuries were analyzed through HIC – Head Injury Criterion and AIS – Abbreviated Injury Scale criteria. Neck injuries were categorized in serious (AIS 3, 4, 5 or 6) and non-serious (AIS 0, 1 or 2) according to maximum loads. The results show that the life risk increases proportionally to the pitch, although exceptionally close seats can also represent life risk.
Keywords
Injury severity, passengers’ safety, aircraft safety, seat pitch, dynamic simulations
