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Table 3 The main parameters of the benchmark model and the range of each design variable

From: Optimization on the Crosswind Stability of Trains Using Neural Network Surrogate Model

Item Orientation Parameters of benchmark model Min Max
M (kg) 40750
c1 (kN/ms−1) z 10 5 20
c2 y Figure 6(a)
c2 z Figure 6(b)
c3 x Figure 6(c) α=1 α=0.5 α=2
k0 (N/m) x 4.6×107 2.0×107 6.0×107
k0 (N/m) y 1.38×107 3.8×107 2.38×107
k0 (N/m) z 4.6×107 2.0×107 6.0×107
k1 (N/m) x 9.198×105 6.0×105 1.3×106
k1 (N/m) y 9.198×105 6.0×105 1.3×106
k1 (N/m) z 9.475×105 6.0×105 1.3×106
k2 (N/m) x 1.5×105
k2 (N/m) y 1.5×105
k2 (N/m) z 2.0×105
k3 (N/m) x 3.5×107
k4 (N/rad) x 4.15×106 2.0×106 6.0×106
k5 x Figure 6(d)
k6 y Figure 6(e)