광섬유 센서를 이용한 선체 구조의 Global 하중 추정에 관한 연구
A Study for the Measurement of Global Loads on Ship Structure Using Fiber Optic Sensors
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초록
Ships and offshore structures are exposed to wave and engine excitation loadings during navigation and cargo/ballasting operations. These excessive loads may cause damages to hull and may result loss of life the ship. Therefore, it is important to develop a system that allow accurate measurements of global hull loads. The objective of the study is developing a fiber optic monitoring system that is capable of monitoring, recording and warning of the vessel performance. A method for measurement of global loads on a vessel, using strain measurements from a network of fiber optic strain sensors and extensive finite-element analyses(FEA) with idealistic load cases, is presented. The method has been successfully validated on the idealized ship structure model with strain sensors.
Abstract
Ships and offshore structures are exposed to wave and engine excitation loadings during navigation and cargo/ballasting operations. These excessive loads may cause damages to hull and may result loss of life the ship. Therefore, it is important to develop a system that allow accurate measurements of global hull loads. The objective of the study is developing a fiber optic monitoring system that is capable of monitoring, recording and warning of the vessel performance. A method for measurement of global loads on a vessel, using strain measurements from a network of fiber optic strain sensors and extensive finite-element analyses(FEA) with idealistic load cases, is presented. The method has been successfully validated on the idealized ship structure model with strain sensors.
참고문헌 (7)
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- Kim, D.H., "Development of Ship Structure Health Monitoring System Using Fiber Optic Sensors", Proceeding of the Annual Autumn Meeting SNAK, pp.230~235 (2004)
- Kim. J.D., "Structural Response Monitoring System of Large Floating Structures", Bulletin of the Society of Naval Architects of Korea, 33(4), pp.67~75 (1996)
- Shin, C.H., "A Comparison Study of Measured Hull Girder Stresses Using a Hull Monitoring System on Board and Theoretically Calculated Ones", The 9th Symposium on Practical Design of Ships and Other Floating Structures, 통권 : 1, pp.93~97 (2004), PRADS
- Jensen, A.E., "Measurement of Global Loads on a Full Scale SES Vessel Based on Strain Measurements Using Networks of Fibre Optic Bragg Sensors and Extensive Finite Element Analyses", Journal of Ship Research, 45(3), pp.205~215 (2001)
- Wang, G., "Ship Hull Structure Monitoring Using Fibre Optic Sensors", Smart Materials and Structures, pp.472~478 (2000)