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Navigation: Library > Iconic Diagrams > Mechanical > Translation > 2DSmallRotation > Ports |
  
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The models in the 2DSmallRotation library have two types of connection ports: 1D and 2D. The 1D ports can represent movement and force (x- or y-direction) or an angular displacement and torque.
The models of the standard translation and rotation libraries can be used connect to these 1D ports as is shown in the picture below.
The 2D connection port is a vector that represents three degrees of freedom. The vector notation that is used in 20-sim is:
d.o.f. |
identity |
forces |
velocities |
x |
position |
P.F[1] [N] |
P.v[1] [m/s] |
y |
position |
P.F[2] [N] |
P.v[2] [m/s] |
q |
angle |
P.F[3] [Nm] |
P.v[3] [rad/s] |
In 20-sim it is not possible to use vector ports with mixed units. This means that element number 3 will be always be displayed with the units [m/s] and [N] although it should be interpreted as [rad/s] and [Nm].
To connect 2D ports, only other models with 2D ports can be used. A double line indicates this vector connection.
