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Figure 1

From: Kinematic running resistance of an urban rail vehicle undercarriage: a study of the impact of wheel design

Figure 1

Designs of urban rail vehicles undercarriages regarding a floor height: (a) Wheelset with drive-train and braking system positioned between the wheels; (b) Wheelset with drive-train and braking system positioned outside wheels; (c) Undercarriage with independently rotating wheels mounted on a portal beam and external arrangement of drive-train and braking system; (d) Undercarriage with independently rotating wheels blocks and external arrangement of drive-train and braking system.

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