Use the Spring-Force FB to apply a force between two Points.
Edit the Spring-Force FB to edit the Spring-Force FB parameters.
Notes: Spring FB Input-Connector and Output-Connectors
A Spring FB has one input-connector and two output-connectors.
You do not need to connect wires to the input or from its output-connectors.
|•||Input-Connector: no connection needed. If connected, then the data must be Force Units. Use a Maths FB to convert any other unit to Force units [N]. Connect any Forcing Function to its input.|
|•||Top Output-Connector: always reports Position, Velocity and Acceleration relating to the distance between the Spring's anchor-points.|
|•||Bottom Output-Connector: always reports applied or driving Force between the Spring's anchor-points.|
The Force that is reported is the Applied-Force or the Driving-Force between the Spring's anchor-points:
|o||Applied Force = Force at the Input-connector + Force that results the Spring and Velocity Parameters as set in its dialog-box - see parameters, below|
|o||Driving Force =Linear Motive Force, if the Spring has been configured as a Linear Motor - see Configure Power Source|
At this length, the Spring will exert a force between the Points equal to the Constant Force, which may be zero.
A Positive value will pull Points together.
A Negative value will push Points apart.
This parameter is intended to be similar to a Friction Force.
However, it is NOT Friction Force, because this Coulomb Friction-Force is not a function of the 'Normal Force'.