Abstract
A three-dimensional mathematical model of a n aircraft seat, occupant, and restraint system has been developed for use in analysis of light aircraft cras hworthines s. aecause of the significant role played by the seat in overall system crashworthiness, a detailed finite element model of the seat structure is included. The seat model can accommodate large displacements, nonlinear material behavior, and local buckling. The occupant model consists of twelve rigid mass segments whose dimensions and inertial properties have been deternined from studies of human body anthropometry and kinematics and from measurements of anthropomorphic test dummies. Model predictions are compared w ith measured data from dynamic tests of a simple seat.
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