Figure 10
The illustration consists of two schematic diagrams of a bus side view, showing colored contour distributions mapped onto the bus structure. Both diagrams have axes indicators at the bottom left (x-axis in red, y-axis in green, and z-axis in blue). Both diagrams have the same bus section structure (gray lines and transparent fill) and colored contours overlaying selected sections. Left diagram (a): It has the contour colors ranging from purple and blue (top left) through green and yellow (center) to red (bottom right). The color bar below shows numerical values from negative 48.74 (purple) to negative 5.28 (red), divided into color bands. These contours are mapped to three bus regions: the main upper cabin, the lower cabin, and the small protruding front section. Right diagram (b): The similar bus structure, contour mapping, shows more blue and purple in the upper region, with mid and lower areas colored in green, yellow, and red gradients. The color bar below is labeled from negative 25.27 (purple) to negative 7.79 (red).Comparison of the FEM contour of displacement for of the impactor, in mm for the: (a) original geometry and (b) optimised purposed geometry. Source(s): Authors’ own creation