Allowed Connectable Components
The assembly tree connects different components from the ComponentDefinitions library together to define the physical structure of the turbine. Following the assembly tree terms and definitions the chart below shows that a component has a single parent connected via a proximal node and \(n\) child components connected via distal nodes.
The following sections run through the ComponentDefinitions library and explain what parent and what child components can be connected together as part of the turbine Assembly. Note, if a component is the first in the tree then it is at the root of the assembly tree and one of its potential parents is listed as root. Also, some components form the leaves of the tree and have no child component connections.
Tower
The Tower can only have a single distal node and therefore only one child component.
The Tower allows the following possible parent and child component connections as outlined in the table below.
| Possible Parent connection | Possible Child connection |
|---|---|
| Root | Yaw System |
| Drivetrain And Nacelle | |
| Rotation | |
| Translation |
Yaw System
The Yaw System can only have a single distal node and therefore only one child component.
| Possible Parent connection | Possible Child connection |
|---|---|
| Tower | Drivetrain And Nacelle |
| Rotation | |
| Translation |
Drivetrain and Nacelle
The Drivetrain And Nacelle allows for 2 distal nodes one corresponding to a high-speed shaft (HSS) and the other to the low-speed shaft (LSS). Therefore only 2 components can connect to it as children at a time.
| Possible Parent connection | Possible Child connections (LSS) | Possible Child connections (HSS) |
|---|---|---|
| Tower | Hub | Generator |
| Yaw System | Rotation | |
| Translation |
Independent Pitch Hub
The Hub allows for any number of distal nodes, and therefore any number of allowed children.
| Possible Parent connection | Possible Child connection |
|---|---|
| Root | Pitch System |
| Drivetrain and Nacelle | Blades |
| Rotation | |
| Translation |
Pitch System
The PitchSystem can only have a single distal node and therefore only one child component.
![pitchsystem-assembly-nodes][Figure-6]
| Possible Parent connection | Possible Child connection |
|---|---|
| Hub | Blades |
| Rotation | |
| Translation |
Variable Speed Generator
The Generator component does not have any distal nodes and therefore no allowed children.
| Possible Parent connection |
|---|
| Drivetrain And Nacelle |
| Rotation |
| Translation |
Blade
The Blades do not have any distal nodes and therefore no allowed children.
| Possible Parent connection |
|---|
| Hub |
| Pitch System |
| Rotation |
| Translation |
Rotation
The Rotation component has only a single distal node for a single allowed child. The transformations will be done in order of connection starting with the rotation closest to the root of the tree.
Note
Multiple Rotation objects can be connected in sequence. In addition, Translation and Rotation can also be connected together.
| Possible Parent connection | Possible Child connection |
|---|---|
| Tower | Yaw System |
| Yaw System | Drivetrain And Nacelle |
| Drivetrain And Nacelle | Hub |
| Drivetrain And Nacelle | Generator |
| Hub | Pitch System |
| Pitch System | Blades |
| Translation | Translation |
| Rotation | Rotation |
Translation
The Translation component has only a single distal node for a single allowed child. Multiple Translation and Rotation objects can be connected in sequence. The transformations are applied in order of connection starting at the root.
Note
Multiple Translation objects can be connected in sequence. In addition, Translation and Rotation can also be connected together.
| Possible Parent connection | Possible Child connection |
|---|---|
| Root | Tower |
| Tower | Yaw System |
| Yaw System | Drivetrain And Nacelle |
| Drivetrain And Nacelle | Hub |
| Drivetrain And Nacelle | Generator |
| Hub | Pitch System |
| Pitch System | Blades |
| Rotation | Rotation |
| Translation | Translation |