Technical Paper
High Retention Seat Performance in Quasistatic Seat Tests
2003-03-03
2003-01-0173
A new generation of seats has been designed to specifications for high retention (HR) in a Quasistatic Seat Test (QST). The QST involves occupant loading of the seat in a rearward direction and targets peak H-point moment to >1700 Nm giving an energy transfer capability of 2000 J. QST tests from 1998-2000 were compared to results from pre-HR seat designs of the late 1980s and early 1990s to determine performance improvements. Twenty-seven QST tests of HR seats were randomly selected from a larger series and were evaluated for strength and seat deformation under occupant loading. They represented 20 different seat types from four suppliers. Averages and standard deviations in QST results were computed. In addition, eight repeat tests were conducted with one seat to determine repeatability of the QST. These data were compared to an earlier repeatability study of the 1994 W pre-HR seat, which was evaluated at two facilities.