TeimOrbit 2D Road Type: sine_sweep
Linear Sweep
The frequency increases linearly with respect to travel distance. The road height value z(s) as function of travel distance s is calculated as follows:
Note: The factor 2 in the denominator is not an error!
The actual frequency (= derivative of the sine function argument with respect to travel path, divided by 2π; this is not equal to the factor that is multiplied by 2π(s-ss) in the sine function!) is given by:
Logarithmic sweep
With every cycle, the wave length decreases by a constant factor. The road height value is calculated as follows:
Where,
is the travel path where theoretically an infinitely high
frequency is reached, measured relative to sweep start 
. The actual
frequency is given by:
The swept sine road is implemented as a 2D road type. If the ROAD_TYPE
is set to sine_sweep, COSIN/road searches and reads the following data
items in the [PARAMETERS] section:
| Name of Input Variable | Unit | Meaning |
|---|---|---|
| start | length | Start of swept sine wave (travel distance). |
| end | length | End of swept sine wave (travel distance). |
| amplitude_at_start | length | Amplitude of swept sine wave at start. |
| amplitude_at_end | length | Amplitude of swept sine wave at end. |
| wave_length_at_start | length | Wave length of swept sine wave at start. |
| wave_length_at_end | length | Wave length of swept sine wave at end. Must be less than or equal to wave_length_at_start. |
| sweep_type | 0/1 |
|