Research Article
Experimental and Numerical Investigation into Formation of Metro Wheel Polygonalization
Figure 22
Evolution of wheel polygonalization at different rail pad stiffness values: (a) 35 MN/m after 27,500 km; (b) 55 MN/m after 22,000 km; (c) 75 MN/m after 11,000 km; (d) 110 MN/m after 8250 km.
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