US 11,745,834 B2
Monitoring system and method for vessel mooring with position and yaw, roll, and pitch rotational motion
Nicolas Tcherniguin, Paris (FR); Djoni Eka Sidarta, Houston, TX (US); Johyun Kyoung, Katy, TX (US); and Ho Joon Lim, Katy, TX (US)
Assigned to Technip Energies France, Courbevoie (FR)
Appl. No. 17/286,307
Filed by TECHNIP FRANCE, Courbevoie (FR)
PCT Filed Oct. 21, 2019, PCT No. PCT/IB2019/001462
§ 371(c)(1), (2) Date Apr. 16, 2021,
PCT Pub. No. WO2020/161517, PCT Pub. Date Aug. 13, 2020.
Claims priority of provisional application 62/748,787, filed on Oct. 22, 2018.
Prior Publication US 2021/0339831 A1, Nov. 4, 2021
Int. Cl. B63B 21/50 (2006.01); B63B 79/30 (2020.01); B63B 79/10 (2020.01); B63B 21/00 (2006.01)
CPC B63B 21/50 (2013.01) [B63B 79/10 (2020.01); B63B 79/30 (2020.01); B63B 2021/008 (2013.01); B63B 2021/009 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of monitoring for changes in a mooring system for a floating hull, the mooring system having at least one mooring line coupled between the hull and an anchor having a mooring point to which the at least one mooring line is coupled, the method comprising:
determining and recording a geographical position of a locating point on the hull to establish a baseline geographical position;
determining and recording at least one type of an associated rotational motion of the hull at the baseline geographical position to establish an associated baseline hull rotational motion; and
comparing an operational geographical position and associated hull rotational motion to reference data of a baseline geographical position and associated baseline hull rotational motion corresponding to an undamaged mooring system to provide an indication of a change in the mooring line stiffness, mooring line pre-tension, the anchor location, or a combination thereof.