Laboratory seat testing
The second version of the suspension seat prototype has
been extensively tested on a vibration simulator with 11 subway
operators. These tests were realized to characterize the
influence on the SEAT value of the operator weight, vibration
level, vibration spectra (MR-63 and MR-73), hydraulic
damper, as well as horizontal and height adjustment of the
seat. The operators were chosen according to body weight
that would represent the 5th, 50th and 95th percentile of the
operator population weight. Three height adjustments of the
suspension were considered.