TeimOrbit 2D Road Type: flatbelt

The rotating flatbelt testrig is implemented as a 2D road type. If the ROAD_TYPE is set to flatbelt, COSIN/road searches and reads the following data items in the [PARAMETERS] section:

Name of input variable	Unit	Meaning
`number_cleats`	-	Number of extra cleats on belt (`number_cleats` = 0 allowed)
`cleat_direction`	angle	Direction of cleat relative to belt lateral direction. Direction is zero if cleat is oriented exactly in transversal direction. Direction angle is measured counter-clockwise if looking from above onto the belt surface. Default value is 0 (transversal cleat).
`mu_factor_cleat`	-	Friction modification factor on cleats.

The flatbelt speed is defined by one of the following alternatives:

Either:

v
v	length/time	Constant rotation speed of drum surface.
`acceleration_time`	time	Time span at beginning of dynamic simulation, to accelerate belt from stand-still to nominal velocity. Default value is 0.

Or:

data sub-section (TV_DATA)

Arbitrarily many lines with 2 values of type: time, length/time

Data pairs defining speed-vs.-time data of the belt’s time-dependent surface speed profile.

t values (first value in each line) should be in ascending order.

The exact geometry of the cleat is defined by one of the three following alternatives:

Either:

`cleat_height`	length	Height of cleats.
`cleat_length`	length	Length of cleat, measured in circumferential direction of belt.
`cleat_bevel_edge_length`	length	Length of bevel edge of cleat, measured in circumferential direction of belt. Bevel edge has 45 degree slope.
`cleat_edge_rounded`	-	0 Cleat bevel edge is flat. 1 Cleat bevel edge is rounded by a quarter circle.

Or:

data sub-section (XZR_DATA)

Arbitrarily many lines with data of type: 3 x length

Data triples defining x and z data of the cross section of the cleat, together with rounding radii in these data points. Rounding radii may be zero. x values should be in ascending order. First and last y value should be zero.

Optionally, the exact height geometry of the stoppers can be specified by spline data:

data sub-section (stopper_geometry)

Arbitrarily many lines with data of type: 2 x length

Data pairs defining x and z data of the stoppers. x values must be non-negative and ascending: x = 0 refers to the start in longitudinal direction of the stopper.