/CYL_JOINT
Block Format Keyword Defines cylindrical joints.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| /CYL_JOINT/joint_ID/unit_ID | |||||||||
| joint_title | |||||||||
| node_ID1 | node_ID2 | grnd_ID | |||||||
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| joint_ID | Joint
identifier (Integer, maximum 10 digits) |
|
| unit_ID | Unit Identifier (Integer, maximum 10 digits) |
|
| joint_title | Joint title. (Character, maximum 100 characters) |
|
| node_ID1 | Node identifier N1. (Integer) |
|
| node_ID2 | Node identifier N2. (Integer) |
|
| grnd_ID | Node group
identifier. (Integer) |
Comments
- A cylindrical joint behaves like a rigid body; except for the translational DOF in a variable direction and the rotational DOF around this direction.
- The direction is defined by node_ID1 and node_ID2.
- node_ID1 and node_ID2 belong to the cylindrical joint.
- At each time step, the center of mass and moment of inertia of the joint are computed.
- The grnd_ID input is obligatory. The cylindrical joint will only be applied to nodes belonging to a node group.