TY - GEN
T1 - Optimization of Mooring Line Axial Stiness Characteristics for Oshore Renewable Energy Applications
AU - Pillai, Ajit C.
AU - Thies, Philipp R.
AU - Johanning, Lars
N1 - Publisher Copyright:
Copyright © 2018 by the International Society of Offshore and Polar Engineers (ISOPE)
PY - 2018
Y1 - 2018
N2 - Expanding on existing methodologies for the design optimization of mooring systems for offshore renewable energy devices, this paper explores the optimization of the axial stiffness of a mooring system, a key property that governs the motion of the moored renewable energy device. The optimization using a covariance matrix adaptation evolutionary strategy is executed with respect to both the motion response of the moored device, and the cumulative fatigue damage in the mooring lines. Previous mooring system optimization work has focused on geometry optimization of the system considering known material properties, whilst this paper explores the optimization of the axial stiffness properties of the mooring system identifying ways in which the response of the system can be optimized through changes in the material properties. Considering the case of a moored heaving buoy similar to an offshore renewable energy device, the present case study optimizes the mooring system simultaneously minimizing the cumulative fatigue damage in the mooring lines while also maximizing the heave response which is responsible for the energy generated by the device.
AB - Expanding on existing methodologies for the design optimization of mooring systems for offshore renewable energy devices, this paper explores the optimization of the axial stiffness of a mooring system, a key property that governs the motion of the moored renewable energy device. The optimization using a covariance matrix adaptation evolutionary strategy is executed with respect to both the motion response of the moored device, and the cumulative fatigue damage in the mooring lines. Previous mooring system optimization work has focused on geometry optimization of the system considering known material properties, whilst this paper explores the optimization of the axial stiffness properties of the mooring system identifying ways in which the response of the system can be optimized through changes in the material properties. Considering the case of a moored heaving buoy similar to an offshore renewable energy device, the present case study optimizes the mooring system simultaneously minimizing the cumulative fatigue damage in the mooring lines while also maximizing the heave response which is responsible for the energy generated by the device.
KW - Covariance matrix adaptation
KW - Mooring design
KW - Multi-objective evolutionary strategy
KW - Offshore renewable energy
KW - Reliability-based design optimization
UR - http://www.scopus.com/inward/record.url?scp=85053471013&partnerID=8YFLogxK
M3 - Conference proceedings published in a book
AN - SCOPUS:85053471013
SN - 9781880653876
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 690
EP - 697
BT - Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
PB - International Society of Offshore and Polar Engineers
T2 - 28th International Ocean and Polar Engineering Conference, ISOPE 2018
Y2 - 10 June 2018 through 15 June 2018
ER -
