Chain drive
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| C | |
| in the palette | on the schematic |
The block is designed to simulate a chain drive consisting of two sprockets and a chain. The block simulates the chain slack or tension. The tension of the chain is simulated by a viscoelastic tension force, the slack of the chain is characterized by zero force. Thus, when one of the sprockets is rotated, the slack of the chain will first be reduced, and then the torque will be transmitted through the tensioned chain. At the beginning of motion, the slack of the chain is evenly distributed on the driving and driven parts of the chain, therefore, before the start of the torque transmission, the driving sprocket will be rotated only by half the length of the slacking part of the chain.
Inputs
| Name | Description | Connection line type |
|---|---|---|
| B | Port for connecting model blocks to a driving sprocket (base) | Rotary mechanics |
| F | Port for connecting model blocks to a driven sprocket (following) | Rotary mechanics |
Outputs
None.
Properties
| Name | Parameter | Description | By default | Data type |
|---|---|---|---|---|
| Radius of the driving sprocket, m | R_B | Radius of the driving sprocket | 0.04 | Вещественное |
| Radius of the driven sprocket, m | R_F | Radius of the driven sprocket | 0.04 | Вещественное |
| Chain slack, m | S |
Length of slacking chain at zero sprocket turn angles |
0.01 | Вещественное |
| Stiffness factor of the chain, N/m | K | Stiffness factor of the chain | 1000000 | Вещественное |
| Damping factor of the chain, N·s/m | D | Damping factor of the chain | 1000 | Вещественное |
| Coefficient of bearing friction of the driving sprocket, Nm·s/rad | B_B | Coefficient of bearing friction of the driving sprocket | 0 | Вещественное |
| Coefficient of bearing friction of the driven sprocket, Nm·s/rad | B_F | Coefficient of bearing friction of the driven sprocket | 0 | Вещественное |
Parameters
| Name | Parameter | Description | Data type |
|---|---|---|---|
| Driving sprocket | A group of parameters displaying the parameters of the driving sprocket | ||
| Angular speed, rad/s | W_B | Angular speed of the driving sprocket | Вещественное |
| Torque, Nm | T_B |
The torque at which the connected blocks act on the driving sprocket |
Вещественное |
| Driven sprocket | A group of parameters displaying the parameters of the driven sprocket | ||
| Angular speed, rad/s | W_F | Angular speed of the driven sprocket | Вещественное |
| Torque, Nm | T_F |
The torque at which the connected blocks act on the driven sprocket |
Вещественное |
| Chain tension, N | F | Chain tension force. Positive values indicate the tension of the driving part of the chain, negative values indicate the tension of the driven part | Вещественное |