Abstract
A three-dimensional mathematical model of an aircraft seat, occupant, and restraint system has been developed for use in the analysis of light aircraft crash worthiness. Because of the significant role played by the seat in overall system crashworthmess, 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 12 rigid mass segments whose dimensions and mertial properties have been determined from studies of human body anthropometry and kinematics and from measurements of anthropomorphic test dummies. Model predictions are compared with measured data from dynamic tests of a simple seat.
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