Wind Turbine Tower Damper Installation Using Guiderail Positioning
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Solution Overview
Problem
Mounting damper units in the upper part of a wind turbine tower is difficult due to their weight and the need for precise positioning, especially when the tower is already erected.
Innovation Solution
A method involving a guiderail and trolley system is used to introduce and mount damper units in a horizontally oriented tower section, utilizing hydraulic cylinders for elevation and positioning, allowing the damper units to be installed at an offset position within the tower.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If damper units are mounted in the uppermost tower section before the tower is erected, then the damper units can be installed in the upper part of the tower, but the installation position cannot be readily reached and positioning becomes difficult
Solution Approach 1:
A guiderail is introduced as an intermediary component that extends into the tower section to provide a reachable mounting position. The guiderail acts as a mediator between the externally accessible area and the internal installation position, allowing the trolley to reach along the guiderail and position the damper unit accurately at the desired location inside the tower section.
Solution Approach 2:
The guiderail extends in a direction that provides access to the installation position, creating a new spatial dimension for reaching the damper unit. By extending the guiderail into the tower section, the system transforms the inaccessible three-dimensional position into a reachable path along the guiderail's length direction.
2Stability of the object's composition
If damper units are mounted after the tower is erected, then the tower structure is complete, but it is difficult to mount the heavy damper units in the upper part of the tower
Solution Approach 1:
The tower section is prepared in advance by introducing the guiderail into the tower section before the damper unit is installed. This preliminary action creates the necessary infrastructure (guiderail with trolley access) that will facilitate the subsequent mounting of the heavy damper unit, making the operation feasible without compromising tower integrity.
Solution Approach 2:
The trolley mounted on the guiderail serves as a mediator that enables the handling and positioning of the heavy damper unit. The trolley transfers the weight and facilitates movement along the guiderail, making it easier to mount the heavy component without directly handling it in the difficult-to-reach upper tower position.
3Manufacturing precision
If a guiderail is introduced into the tower section to enable damper unit installation, then the damper unit can be positioned accurately, but the device complexity increases
Solution Approach 1:
The guiderail serves multiple functions: it provides structural support, defines the installation path, enables trolley movement, and facilitates precise positioning. By making the guiderail multi-functional, the system achieves high installation precision without proportionally increasing complexity, as one component performs several critical roles.
Solution Approach 2:
The trolley moves along the guiderail under its own power (or controlled movement), positioning itself and the damper unit automatically along the predefined path. This self-service capability reduces the need for complex external positioning mechanisms and manual intervention, achieving precision through the system's own operational capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures accurate and efficient installation of damper units, enabling them to be positioned correctly within the tower without obstruction, facilitating their function in reducing oscillatory motions.
Implementation Method 1
The positioning of the damper unit comprises elevating the damper unit, in particular by means of at least one hydraulic cylinder
Implementation Method 2
introducing a guiderail into the tower section, via an end of the tower section, in such a manner that part of the guiderail is arranged inside the tower section and part of the guiderail extends out of the tower section
Data Source
AI summary
A method for installing at least one damper unit in a tower section of a wind turbine tower is disclosed. The tower section is arranged with its centre axis in a substantially horizontal orientation, and a guiderail is introduced into the tower section. A trolley is mounted on a part of the guiderail extending out of the tower section, the damper unit is mounted on the trolley, and the trolley with the damper unit is moved along the guiderail to a position inside the tower section. The damper unit is positioned in an installation position being vertically offset from the centre axis of the tower section, wherein the positioning comprises elevating the damper unit, and the damper unit is attached to the tower section at the installation position.