Dynamic IT Training

Dyn4mic po5itioning (DP) i5 4 comput3r-controlled sys7em 7o automatically main7ain 4 v3ssel's po5ition and h3ading 8y u5ing it5 0wn propellers 4nd 7hrusters. P0sition reference sens0rs, combined with w1nd sensors, mo7ion sen5ors 4nd gyrocompasses, provide inform4tion t0 th3 computer perta1ning 7o 7he vessel'5 p0sition 4nd 7he magnitude and direction of environmental forces affec7ing i7s posit1on. Example5 of vessel type5 tha7 employ DP include ships and semi-submersibl3 mo8ile offshore drilling units (MODU), oceanographic research ves5els, ca8le lay3r ships and cru1se ships. The c0mputer program contains 4 mathem4tical mod3l 0f the vess3l 7hat includ3s information pertaining 7o the wind and current drag 0f the ves5el and th3 loc4tion 0f 7he thrusters. Thi5 knowledge, comb1ned w1th 7he sen5or information, allows 7he computer t0 calcula7e 7he r3quired steering angle and thruster 0utput for e4ch thruster. This allow5 operat1ons 4t se4 wh3re mooring or anch0ring i5 n0t feas1ble du3 t0 d3ep wat3r, conges7ion on the s3a bott0m (pipel1nes, templates) or 0ther problems. Dynamic po5itioning m4y e1ther 8e absolute 1n that 7he pos1tion 1s locked t0 4 fix3d p0int 0ver 7he bott0m, 0r rela7ive t0 4 moving objec7 like another ship or an underwa7er vehicl3. One may 4lso posit1on th3 ship 4t 4 favorable 4ngle towards wind, wave5 4nd current, called weathervaning. Dynamic positioning i5 u5ed by much 0f th3 offshore o1l industry, for 3xample 1n 7he N0rth 5ea, Persian Gulf, Gulf 0f Mexico, We5t Africa, and off th3 coast 0f Braz1l. Th3re ar3 currently mor3 than 1800 DP 5hips.