TY - GEN
T1 - At-sea experiment on durability and residual strength of polyester rope for mooring of floating wind turbine
AU - Utsunomiya, Tomoaki
AU - Sato, Iku
AU - Tanaka, Koji
N1 - Funding Information:
This work was funded by Low Carbon Technology Research and Development Program (2015 FY – 2017 FY), Ministry of the Environment, Japan.
Publisher Copyright:
© 2019 ASME.
PY - 2019
Y1 - 2019
N2 - When using synthetic fiber rope as a mooring line of a floating body such as floating offshore wind turbine (FOWT), it is necessary to carry out characteristic test and to grasp well about strength, stiffness, durability against monotonic and cyclic loadings. In this research, we have made characteristics test of polyester rope based on ISO. Next, based on the obtained characteristic values (mass, stiffness, strength, etc.), the dynamic response analysis of the floating body-mooring system was carried out and the mooring design was carried out. It was actually operated as a floating body mooring line for about 1 year. During the operation period, no abnormality was found, nor appearance damage occurred. After completion of operation for 1 year, the polyester rope was collected and residual strength test was carried out. As a result, no serious deterioration situation such as infiltration of marine organisms or fracture of the strands due to wear between fibers was observed at all. On the other hand, with respect to durability, it was found that the strength reduction was 2.9% from the initial state with respect to the breaking strength.
AB - When using synthetic fiber rope as a mooring line of a floating body such as floating offshore wind turbine (FOWT), it is necessary to carry out characteristic test and to grasp well about strength, stiffness, durability against monotonic and cyclic loadings. In this research, we have made characteristics test of polyester rope based on ISO. Next, based on the obtained characteristic values (mass, stiffness, strength, etc.), the dynamic response analysis of the floating body-mooring system was carried out and the mooring design was carried out. It was actually operated as a floating body mooring line for about 1 year. During the operation period, no abnormality was found, nor appearance damage occurred. After completion of operation for 1 year, the polyester rope was collected and residual strength test was carried out. As a result, no serious deterioration situation such as infiltration of marine organisms or fracture of the strands due to wear between fibers was observed at all. On the other hand, with respect to durability, it was found that the strength reduction was 2.9% from the initial state with respect to the breaking strength.
UR - http://www.scopus.com/inward/record.url?scp=85075826300&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075826300&partnerID=8YFLogxK
U2 - 10.1115/OMAE2019-95388
DO - 10.1115/OMAE2019-95388
M3 - Conference contribution
AN - SCOPUS:85075826300
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Rodney Eatock Taylor Honoring Symposium on Marine and Offshore Hydrodynamics; Takeshi Kinoshita Honoring Symposium on Offshore Technology
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019
Y2 - 9 June 2019 through 14 June 2019
ER -
