Modeling of Whole-Body Response to Windblast
J AND J TECHOLOGIES INC ORCHARD PARK NY
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The Articulated Total Body ATB Model was modified for improved modeling of the biomechanics of the manseat ejection problem. The new ATB-IIIA version of the model incorporates whole-body wind tunnel data to model windblast, an improved algorithm to simulate the ACES-II STAPAC assembly, and calculates the location of the instantaneous center-of-mass for either the man or the manseat system. The enhanced ATB Model provides for the modeling of the ACES-II ejection sequence from initiation of ejection to manseat separation. The data for several ejection simulations are provided and discussed in detail. An extensive literature search was conducted in the area of ejection, windblast response and restraint systems. A summary of pertinent reports and available wind tunnel data is provided, as well as recommendations for future wind tunnel testing to correct for deficiencies in currently available aerodynamic data.