Rope
 |
 |
| C | |
| in the palette | on the schematic |
The block is designed to simulate a rope. The extension of the rope is simulated by a viscoelastic tension force, the slacking of the rope is characterized by zero force.
The block allows you to specify the condition under which the rope will be considered tensioned:
- Under the condition of tension "SR > SC", the rope will be considered tensioned if the linear position of the body at the port "R" SR in meters exceeds the linear position at the port "C" SC in meters by more than the value of the initial slack L, m:
In this case, a negative force will be applied to the port "R", and a positive force will be applied to the port "C". - Under the condition of tension "SC > SR", the rope will be considered tensioned if the linear position of the body at the port "C" SC in meters exceeds the linear position at the port "R" SR in meters by more than the value of the initial slack L, m:
In this case, a positive force will be applied to the "R" port, and a negative force will be applied to the "C" port.
Inputs
| Name | Description | Communication line type |
|---|---|---|
| C | Port for connecting conditionally fixed (case) blocks of the model | Translatory mechanics |
| R | Port for connecting conditionally movable (rod) blocks of the model | Translatory mechanics |
Outputs
None.
Properties
| Name | Parameter | Description | By default | Data type |
|---|---|---|---|---|
| Rope tension condition | Dir | Allows you to set the condition of the rope tension at which the rope tension will be simulated. The possible values are: "SR > SC", "SC > SR" | SR > SC | Перечисление |
| Rope slacking, m | L | The length of the slacking rope at zero positions on the block ports. Negative value sets rope pre-tension | 0 | Вещественное |
| Stiffness factor, N/m | K | Rope stiffness factor | 100 | Вещественное |
| Damping factor, N·s/m | D | Rope damping factor | 10 | Вещественное |
Parameters
| Name | Parameter | Description | Data type |
|---|---|---|---|
| Rope slacking, m | Slack | Current slacking of the rope. In case of tension, it has a value of zero | Вещественное |
| Rope tension, m | Tension | Current tension of the rope. In case of slacking, it has a value of zero | Вещественное |
| Rope tension force, N | F |
Current value of viscoelastic tension force |
Вещественное |
Examples
Examples of block application: