Figure 11
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 show a semi-transparent gray bus framework with colored contour overlays mapped onto selected regions. Left diagram (a): The contour overlay transitions from magenta on the left and bottom to blue, cyan, green, yellow, and red at the front right. The color bar below shows numerical values from negative 11.99 (magenta) to 28.32 (red), with ticks at negative 6.97, negative 1.91, 3.13, 8.17, 13.21, 18.25, and 23.28. These contours are mapped to three bus regions: the main upper cabin, the lower cabin, and the small protruding front section. Right diagram (b): It has the similar mapping, but the gradient ranges from negative 6.76 (magenta) to 12.62 (red) with evenly spaced color transitions from magenta to red, passing intermediate tick values at negative 4.34, negative 1.92, 0.50, 2.93, 5.35, 7.77, and 10.19.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