A Development of Statistical Human Back Contour Model for Backrest Comfort Evaluation

First, this paper describes a measurement of the human back-backrest interface contours and a reduction procedure of the measured contours to reconstruct the statistical back contours of American 50 and 95-percentile male.

Second, the paper illustrates the difference of the back contour between the statistical male drivers and SAE 3-D Manikin.

Finally, the advantage of using the back contour model in experiment is given. The AM 50 back contour model was used as a loader to obtain the backrest pressure distribution and proved an excellent tool for backrest comfort evaluation.