Rotational Hard Stop
Purpose
Ideal rotational hard stop
Library
Mechanical / Rotational / Components
Description
The Rotational Hard Stop models an ideal one- or two-sided hard stop in a rotational system, which restricts the relative displacement of the two flanges between an upper and lower limit. While the displacement is within the limits, no torque is transmitted. When the displacement hits either limit, the displacement is clamped at the limit and the flanges become rigidly connected until the transmitted torque reverses.
The figure below shows the displacement/torque characteristic and the state chart of the component.
Parameters
- Upper limit
- The maximum displacement
between the flanges. Set to inf to disable this limit.
- Lower limit
- The minimum displacement
between the flanges. Set to -inf to disable this limit.
- Initial displacement
- The initial displacement of the flanges, in radians. May be specified in order to provide proper initial conditions if absolute angles are measured anywhere in the system. Otherwise, this parameter can be left blank.
Probe Signals
- Torque
- The transmitted torque
flowing from the unmarked to the marked flange, in Newton meters (Nm).
- Displacement
- The displacement
of the marked flange with respect to the unmarked flange, in radians.
- State
- The internal state of the component: -1 in lower limit, 0 inside limits, +1 in upper limit.