Angle between Two Elements |
 
|
Angle between Two Elements |
|
The simplest output under this heading of Angles is the angle between two elements. When you invoke this option you must naturally input the numbers of the two elements in question. Note that one of the elements can be a so-called auxiliary element. This allows you to find the angle between, say, the last element on a riser coming into a vessel connection and an auxiliary element representing a flange or some part of the vessel. What Flexcom actually outputs when you invoke this facility is the true or actual angle between the two elements, in the plane formed by the elements. Mathematically, the angle is the arc-cosine of the dot product of two unit vectors directed along the elements (in their instantaneous positions), from first-specified to second-specified nodes. This angle will be in the range 0° to 180°.
•*TIMETRACE is used to request the creation of timetrace plots. Specifically, TYPE=ELEMENT_ELEMENT_ANGLE is used to request a timetrace of the angle between two elements.
•*PARA ANGLE ELEMENT is used to request summary output of the angle between two elements.