diameter

m

Diameter of the tire test drum. COSIN/road assumes an outer drum, if diameter < 0.

v

m/s

Rotation speed of drum surface (be sure to choose rolling_speed = 0 in the data block $sources. Otherwise, the wheel moves away from the drum).

number_cleats

-

Number of extra cleats on drum (number_cleats = 0  allowed).

cleat_height

mm

Height of extra cleats.

cleat_starting_angle

deg

Drum angle coordinate of 1st cleat.

cleat_length

mm

Length of cleat, measured in circumferential direction of drum.

cleat_bevel_edge_length

mm

Length of bevel edge of cleat, measured in circumferential direction of drum. Bevel edge has 45deg slope.

mu_factor_cleat

-

Friction modification factor on cleats.

acceleration_time

s

Optional time span at beginning of simulation during which the drum is accelerated to nominal speed.