Research Article
Development of a Five-Degree-of-Freedom Seated Human Model and Parametric Studies for Its Vibrational Characteristics
Figure 7
Mode veering between the fourth and fifth modes for variations in k2 and kt2, (lower plane: fourth natural frequencies; upper plane: fifth natural frequencies; red line: natural frequency loci when kt2 varies with baseline value of k2; blue line: natural frequency loci with respect to k2 with baseline value of kt2).