Discrete Wind Gust Model
A model of a single gust of wind.
Description
The Discrete Wind Gust Model block implements a model of a single wind gust along three independent axes in a linked coordinate system.
The model is described by the relationship:
where
-
- is the wind gust force along the corresponding axis, m/s;
-
- gust length along the corresponding axis, m;
-
- distance travelled along the corresponding axis, m;
-
- wind velocity along the corresponding axis in the coupled coordinate system, m/s.
The travelled distance is calculated by integrating the air velocity along the corresponding axis.
The Discrete Wind Gust Model block works in SI units.
Parameters
*Gust start time (sec)` - gust start time
5.0 (by default) | scalar
Time when the wind gust starts, sec.
Gust length [dx dy dz] (m): - gust lengths
[120.0,120.0,80.0] (by default) | vector 3 by 1.
Wind gust lengths along the three axes, m. Specified as a vector. Values must be positive.
Gust amplitude [ug vg wg] (m/s) - gust forces.
[3.5,3.5,3.0] (by default) | vector 3 to 1
Wind gust forces along the three axes, m/s. Specified as a vector. Values must be positive.