Injury Prediction Modelling in the GA Design of a Trimaran High Speed Cruise Logistics Ferry (CLF)

Design methodology for crash occupant protection in cabin design of the high speed vessel

“…For that purpose the node on the rear end of the trimaran was chosen and its velocity time history was extracted. The equation of the velocity curve is described with equation ( 1) and it was determined using a polynomial curve fitting procedure [19].…”

“…Equation ( 1) was differentiated once in order to obtain the acceleration pulse. Therefore, the acceleration exerted on the vessel is given by equation ( 2) [19]:…”

“…Since the orientation of the cabin was not specified by the designer it was decided to investigate two different cabin orientations [19]. This was achieved by reversing of the occupant orientation as well as the crash deceleration field, as depicted in Figure 4.…”

“…The investigated scenarios consisted of eleven impacts with the positive acceleration pulse and seven with the negative acceleration pulse. Presented scenarios notations correspond to the initial dummy location (see Figure 4 a) and b)) denoted with a number and the acceleration direction -'P' and 'N' for Positive and Negative acceleration pulse respectively [19]. The impacted structure was dependent on the direction of the acceleration pulse.…”

“…This paper investigates the hazard imposed to the high speed vessel occupants during the crash event. Initial assessment of the injury probabilities was performed with Hybrid III dummy model and it was restricted to the head, neck and chest injuries only [19]. The innovation of this research is the investigation of the most critical case in terms of injury probability by replacing the Hybrid III dummy model with the Total Human Model for Safety (THUMS) which enabled for evaluation of the human body injuries including the internal organs.…”