Passenger Response and Cabin Interior Design
The role of CIC in the European Community Programme 'CRASURV' was to perform the
numerical simulations of passenger response to composite fuselage pulses and cabin
interior design. The code used in the investigation is the commercially available finite
element software PAM-CRASH, supplied by ESI.
The influence of the cabin interior in terms of layouts, restraint
systems and protective coverings were studied:
1 - Layout
Passengers and seat/internal furniture location within the fuselage may take a number of
configurations each requiring the appropriate safety features. The investigation -
assuming rigid seats, rigidly fixed to the cabin floor, where the influence of factors
such as seat pitch, passenger, and interior furnishings for a number of cabin
configurations - addressed the influence of cabin layout upon the occupant injury indices.
2 - Restraint System
The contribution of the restraint system, including 2 and 3 point belts concepts have been
assessed.
3 - Protective Covering
The occupant's body segments within an impacting structure may come into contact with the
residual space boundary. Depending on the compliance of the contact surfaces, the contact
load may exceed human tolerance level. In such circumstances, the application of foam
coverings of low compression load may be applied to improve occupant protection. A study
of energy absorbing foam is required to identify for a particular contact configuration,
the most appropriate available. The suitability may be based on a number of parameters,
e.g. maximum energy absorption per unit compression, minimum generated acceleration in the
body segment, minimum rebound velocity, toxicity etc. |
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