Rotational Spring
Ideal spring in mechanical rotational systems
Library
Mechanical Rotational Elements
Description
The Rotational Spring block represents an ideal mechanical rotational linear spring, described with the following equations:
where
T | Torque transmitted through the spring |
K | Spring rate |
| φ | Relative displacement angle (spring deformation) |
| φinit | Spring preliminary winding (spring offset) |
| φR, φC | Absolute angular displacements of terminals R and C, respectively |
| ω | Relative angular velocity |
t | Time |
The block positive direction is from port R to port C. This means that the torque is positive if it acts in the direction from R to C.
Variables
To set the priority and initial target values for the block variables prior to simulation, use the Variables tab in the block dialog box (or the Variables section in the block Property Inspector). For more information, see Set Priority and Initial Target for Block Variables.
Parameters
- Spring rate
Spring rate. The default value is
10N*m/rad.
Ports
The block has the following ports:
RMechanical rotational conserving port.
CMechanical rotational conserving port.
Extended Capabilities
See Also
Rotational Damper | Rotational Friction | Rotational Hard Stop