Torsional Spring-Damper
Rotational spring and damper coupling with Coulomb friction, locking, and hard stops
Libraries:
Simscape /
Driveline /
Couplings & Drives
Description
The Torsional Spring-Damper block represents a rotational spring and damper that imposes a combination of internally generated torques between the two connected driveshaft axes, the rod and the case. The block defines the torque using the following behaviors:
Linear damped spring
Coulomb friction (including locking static friction)
Hard-stop compliance
This block is a composite component that consists of these blocks:
Block | Contribution | Library |
---|---|---|
Loaded-Contact Rotational Friction | Coulomb friction | Simscape / Driveline / Brakes & Detents / Rotational |
Rotational Damper | Damping | Simscape / Foundation Library / Mechanical / Rotational Elements |
Rotational Spring | Spring | |
Rotational Hard Stop | Hard stop |
For more information, see Composite Components.
Assumptions and Limitations
Including hard-stop and Coulomb friction enhances model fidelity, but reduces simulation speed. For more information, see Driveline Simulation Performance.