Biomedical Engineering Reference
In-Depth Information
melon. The purpose of this model is to give insight into how the vibration modes change
with the stiffness of the flesh.
Fig. 13. A finite element mesh of a melon model
Figure 14 shows the elastic mode with the lowest natural frequency, which is elongation in
the minor axis direction. Figure 15 shows the second mode, which is elongation in the major
axis direction. Figure 16 shows the twisting mode. When the Young's modulus is 1.5MPa or
lower, this mode changes shapes into the shape shown in Figure 17
Fig. 14. Mode 1, “sideways elongation”, 75.2Hz, 90.4Hz, 97.4Hz, 115.0Hz
