Tower |
 
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Tower |
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Input: |
Description |
Tower Height: |
The distance from mean sea level to the top of the tower and yaw bearing. This is illustrated by 'TowerHt' in Conventional Upwind Turbine Layout. |
Base Diameter: |
The diameter of the tower at its base. |
Base Thickness: |
The wall thickness of the tower at its base. |
Top Diameter: |
The diameter of the tower at its top. |
Top Thickness: |
The wall thickness of the tower at its top. |
Input: |
Description |
Young's Modulus: |
The Young's Modulus (E) of the tower material. |
Shear Modulus: |
The Shear Modulus (G) of the tower material. |
Density: |
The mass density of the tower material. |
Input: |
Description |
Stiffness Damping Coefficient: |
The stiffness proportional damping coefficient for the tower material. Refer to Damping Coefficients for further details. |
(a)Refer to Tower Geometry for an illustration of the tower inputs.
(b)Early versions of Flexcom Wind model a conical tower whose diameter decreases linearly from base to top. It may be possible to model towers of arbitrary profile in a future software version.
(c)The diameter and thickness values are used to compute a mass per unit length for the structural elements which model the tower.