Position a jacket so that the center of gravity (which is off center)


Q: I am doing a launch analysis. How can I position a jacket so that the center of gravity (which is off center) is at the center line of the barge?
REV 5.08

A: You need to specify the proper Y coordinates on the LLEG command for the beginning of the skidway, and the rocker pin using the -TPIN option. For example:

     ASSEMBLY LLEG *j1 *j2 barge 0 25+1 25 *B@ -tpin 5 300 25+1 20

     ASSEMBLY LLEG *j3 *j4 barge 0 -25+1 25 *B@ -tpin 5 300 -25+1 20

will shift the skidways one unit to starboard.