Rotary transmission link
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| C | |
| in the palette | on the schematic |
The block is designed to simulate an ideal constant gear ratio between two rotary moving bodies. The block is described by the following formulas:
where:
- φC and φR – turn angles at the ports "C" and "R", respectively, rad
- ωC and ωR – angular speeds at ports "C" and "R", respectively, rad/s
- εC and εR – angular accelerations at ports "C" and "R", respectively, rad/s2
- TC and TR – torques applied to ports "C" and "R", respectively, Nm
- U – gear ratio
To simulate the rotation of the shafts in opposite directions, a negative ratio should be set.
The block allows you to change the direction of the "C" and "R" ports for easy connection to other blocks of the model. If the block has both input ports, then the coupling equation is solved. A detailed description of the simulation approach for the gear ratios is given on the page Simulating transmission.
The gear ratio value U is displayed next to the block.
Ports
| Name | Description | Connection line type |
|---|---|---|
| C | Port for connecting model blocks. The port is input if specified in the "Input Port" property, otherwise this port is output | Rotary mechanics |
| R | Port for connecting model blocks. The port is input if specified in the "Input Port" property, otherwise this port is output | Rotary mechanics |
Properties
| Name | Parameter | Description | By default | Data type |
|---|---|---|---|---|
| Input port | Mod_Type | Allows you to specify the input ports. The possible values are: "C", "R", "C and R" | C and R | Перечисление |
| Gear ratio (Wr/Wc) | U | Gear ratio | 2 | Вещественное |
| Time constant for solving the nonlinear algebraic equation, s | Tau | The time constant for solving the nonlinear algebraic equation. Used to solve the coupling equation. The property is available when selecting the input ports "C and R" | 0.1 | Вещественное |
Parameters
| Name | Parameter | Description | Data type |
|---|---|---|---|
| Port C | A group of parameters displaying the parameters of rotary motion at the port "C" | ||
| Turn angle, rad | Fic | Turn angle value at the port "C" | Вещественное |
| Angular speed, rad/s | Wc | Angular speed value at the port "C" | Вещественное |
| Angular acceleration, rad/s2 | Epsc | Angular acceleration value at the port "C" | Вещественное |
| Torque, Nm | Tc | Torque with which the transmission link acts on the block connected to the port "C" | Вещественное |
| Port R | A group of parameters displaying the parameters of rotary motion at the port "R" | ||
| Turn angle, rad | Fir | Turn angle value at the port "R" | Вещественное |
| Angular speed, rad/s | Wr | Angular speed value at the port "R" | Вещественное |
| Angular acceleration, rad/s2 | Epsr | Angular acceleration value at the port "R" | Вещественное |
| Torque, Nm | Tr | Torque with which the transmission link acts on the block connected to the port "R" | Вещественное |
Examples
Examples of block application: