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Citation:
　Srinivasan Chandrasekaran,Thailammai Chithambaram.Structural Health Monitoring of Offshore Buoyant Leg Storage and Regasification Platform: Experimental Investigations[J].Journal of Marine Science and Application,2018,(1):87-100.[doi:10.1007/s11804-018-0013-9]
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Structural Health Monitoring of Offshore Buoyant Leg Storage and Regasification Platform: Experimental Investigations

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Title:
Structural Health Monitoring of Offshore Buoyant Leg Storage and Regasification Platform: Experimental Investigations
Author(s):
Srinivasan Chandrasekaran;  Thailammai Chithambaram
Affilations:
Author(s):
Srinivasan Chandrasekaran;  Thailammai Chithambaram
Department of Ocean Engineering, ⅡT Madras, Chennai, Tamil Nadu 600036, India
Keywords:
Wireless sensor network; Structural health monitoring; Condition-based monitoring; Response analysis; Alert Monitoring System; Underwater sensors; Postulated failure
分类号:
-
DOI:
10.1007/s11804-018-0013-9
Abstract:
Offshore platforms are of high strategic importance, whose preventive maintenance is on top priority. Buoyant Leg Storage and Regasification Platforms (BLSRP) are special of its kind as they handle LNG storage and processing, which are highly hazardous. Implementation of structural health monitoring (SHM) to offshore platforms ensures safe operability and structural integrity. Prospective damages on the offshore platforms under rare events can be readily identified by deploying dense array of sensors. A novel scheme of deploying wireless sensor network is experimentally investigated on an offshore BLSRP, including postulated failure modes that arise from tether failure. Response of the scaled model under wave loads is acquired by both wired and wireless sensors to validate the proposed scheme. Proposed wireless sensor network is used to trigger alert monitoring to communicate the unwarranted response of the deck and buoyant legs under the postulated failure modes. SHM triggers the alert mechanisms on exceedance of the measured data with that of the preset threshold values; alert mechanisms used in the present study include email alert and message pop-up to the validated user accounts. Presented study is a prima facie of SHM application to offshore platforms, successfully demonstrated in lab scale.

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Memo

Memo:
Received date:2017-02-09;Accepted date:2017-04-28。
Corresponding author:Srinivasan Chandrasekaran, drsekaran@iitm.ac.in
Last Update: 2018-10-11