Issue 30

G. Belingardi et alii, Frattura ed Integrità Strutturale, 30 (2014) 469-477; DOI: 10.3221/IGF-ESIS.30.57 473 The response of the elements (Fig. 3) emphasizes an initial perturbation of the signal, but very quickly the behaviour of the system becomes stable and leads to the theoretical values. Calculated averaged values are: force in x direction F x =157.18 N, force in y direction F y =-198.68 N and force in z direction Fz=-134.69 N. Electric motor rpm F t ·K A /b N N S K v 500 71.85 0.02 0.80 1.01 1000 71.85 0.05 0.80 1.02 2000 71.85 0.09 0.80 1.05 3000 71.85 0.14 0.80 1.07 4000 65.32 0.19 0.78 1.10 5000 58.79 0.24 0.77 1.14 6000 45.72 0.30 0.74 1.20 7000 39.19 0.35 0.72 1.27 8000 35.93 0.41 0.71 1.33 9000 29.39 0.47 0.69 1.44 Table 2 : K v values in function of the electric motor speed. (a) (b) (c) Figure 3 : Forces of the Rigid simulation of Gear 4, (a) contact force in x direction (radial force), (b) contact force in y direction (tangential force), (c) contact force in z direction (axial force).