PSI - Issue 24

Giovanni Zonfrillo et al. / Procedia Structural Integrity 24 (2019) 296–309 G. Zonfrillo et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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Figure 7. Construction and dimensional features of the rocker arm (a) and stress analysis through FEM (b,c)

Frame. Figure 8 reports the main geometry and size features of the frame component. The axial space for the spring housing is optimized in relation to the geometry defined in the conceptual study (figure 4.b). This has two important implications on the efficiency of the device: on one hand the possibility to use a greater number of springs mounted in series that allows to decrease the stiffness, and on the other hand the reduction of the total external dimensions through the removal of material in areas not affected by high stress level.

Figure 8. Geometry and size of the frame component

Figure 9 shows stress analysis from FEM simulations of the frame component.