Experimental and Numerical Simulation of Wheel-Rail Adhesion and Wear Using a Scaled Roller Rig and a Real-Time Contact Code

Table 6

Adhesion tests performed and results.

Test	Reference speed (rpm)	Wheel vertical load (kg)	Maximum adhesion coefficient	Steady adhesion coefficient	Initial slope (𝑁)	Condition
1	1000	37	0.441	0.353	8700	Dry
2	1000	37	0.220	0.212	8380	Wet
3	700	37	0.435	0.342	7960	Dry
4	700	37	0.242	0.220	7665	Wet
5	358	42	0.461	0.402	12100	Dry
6	358	42	0.315	0.282	12038	Wet
7	358	47	0.488	0.403	18000	Dry
8	358	47	0.293	0.278	17670	Wet