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Condition monitoring mooring chains using thermography technique

Lookup NU author(s): Dr Wenxian YangORCiD



This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).


A new mooring chain condition monitoring technique is studied in this paper by the approach of thermography detection. The research is conducted based on two hypotheses, i.e. (1) the streel material used to make mooring chain has much higher thermal conductivity than that of sea water. Therefore, when the mooring chain is heated, the thermal energy will transmit mostly inside the chain, rather than dispersing in water; (2) the transmission of thermal flow inside the mooring chain is disturbed by the defects. Consequently, the distribution of the temperature in the adjacent area of the defects will be different from the temperature distribution in other areas of the chains. Therefore, the discontinued distribution of the temperature may be an ideal indicator of the defect occurring in the chain. The purpose of the work reported in this paper is to demonstrate these two hypotheses using both numerical simulation and experimental methods, and thus explore an effective approach to the condition monitoring of mooring chains.

Publication metadata

Author(s): Yang W, Wei K

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 1st International Conference on Health Monitoring of Civil & Maritime Structures

Year of Conference: 2018

Pages: 1-5

Print publication date: 11/02/2018

Acceptance date: 17/11/2017

Date deposited: 07/02/2018

Publisher: ASRANet