For instance, a 6D buoy may have several child lines.Ĭonnections are normally made by specifying initial position and orientation data, which determine where to place the child object relative to whatever it has been connected to. Parent objects can have multiple children connected to them.
All of these can be fixed, anchored, or to a parent end connections can also be free.
Orcaflex torsion free#
Once a connection has been made, the child connection point will be treated as if it were rigidly attached to the chosen point on the parent object.įixed and anchored objects remain fixed relative to the global axes at all times free objects can move independently of other objects in response to wave loads, connected lines etc. For turbines, the default connection connects the child to the central hub, but it is also possible to connect objects to specific blades (more precisely, to the node structural frame at the specified arc length along the blade). For instance, it is possible to connect a child to any node on a line.
Other parent objects permit children to be connected at a choice of frames. Each child object has one or more points at which it can be connected to a parent each of these points is drawn as a small blob on the child object.Ĭonnections to most parent objects are made relatively and with respect to the local axes of that object. By convention, we describe the child as being connected to the parent, but not the other way around. The model object to which a child is connected is termed the parent. OrcaFlex model objects can most generally be fixed, anchored, free or connected to some other model object as a child.