In Situ Measurement of Discomfort Curves for Seated Subjects in a Car on the Four-Post Rig

Figure 4

Road input and seat output acceleration relation for the test vehicle in different input modes. Heave input mode: (a) 1 Hz and (b) 5 Hz, pitch input mode: (c) 1 Hz and (d) 1.75 Hz, and roll input mode: (e) 1 Hz and (f) 1.75 Hz.

(a)

(b)

(c)

(d)

(e)

(f)