Lateral response of improved suction bucket foundation for offshore wind turbine in centrifuge modelling
Abstract
The purpose of our research is to evaluate the improved suction bucket foundation (ISBF) for the offshore wind turbine. The ISBF included the design of two types of internal compartments inside buckets with different aspect ratios (AP). A series of centrifuge tests were performed to investigate the lateral bearing behavior of ISBF in four types of sandy soils. Both static and cyclic lateral loads were applied by an electrical actuator in a load-controlled system. The first technique interpolated the lateral bearing capacity from the load-displacement curve and reinforced the results with the stiffness-displacement relationship. Moreover, displacement rate was calculated and plotted to obtain the lateral critical and ultimate bearing capacity as the second method. During cyclic tests, the first several cycles changed the lateral displacement and stiffness significantly, whereas the last several cycles did not obviously affect them. It was demonstrated that the geometric designs of ISBF had limited influence on its lateral bearing behavior, but the soil conditions of the foundation did bring about an obvious difference. The lateral capacity of ISBF was further compared to original suction bucket foundation (OSBF), thereby illustrating the advantages of the ISBF in offshore wind turbine constructions.
- Authors:
-
- Case Western Reserve Univ., Cleveland, OH (United States)
- Publication Date:
- Research Org.:
- Lake Erie Energy Development Organization, Cleveland, OH (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Wind Energy Technologies Office
- OSTI Identifier:
- 1605665
- Alternate Identifier(s):
- OSTI ID: 1550368
- Grant/Contract Number:
- EE0006714
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Ocean Engineering
- Additional Journal Information:
- Journal Volume: 141; Journal Issue: C; Journal ID: ISSN 0029-8018
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 17 WIND ENERGY; Centrifuge modelling; Improved suction bucket foundation (ISBF); Lateral response; Sandy soil; Wind turbine
Citation Formats
Wang, Xuefei, Yang, Xu, and Zeng, Xiangwu. Lateral response of improved suction bucket foundation for offshore wind turbine in centrifuge modelling. United States: N. p., 2017.
Web. doi:10.1016/j.oceaneng.2017.06.048.
Wang, Xuefei, Yang, Xu, & Zeng, Xiangwu. Lateral response of improved suction bucket foundation for offshore wind turbine in centrifuge modelling. United States. https://doi.org/10.1016/j.oceaneng.2017.06.048
Wang, Xuefei, Yang, Xu, and Zeng, Xiangwu. Wed .
"Lateral response of improved suction bucket foundation for offshore wind turbine in centrifuge modelling". United States. https://doi.org/10.1016/j.oceaneng.2017.06.048. https://www.osti.gov/servlets/purl/1605665.
@article{osti_1605665,
title = {Lateral response of improved suction bucket foundation for offshore wind turbine in centrifuge modelling},
author = {Wang, Xuefei and Yang, Xu and Zeng, Xiangwu},
abstractNote = {The purpose of our research is to evaluate the improved suction bucket foundation (ISBF) for the offshore wind turbine. The ISBF included the design of two types of internal compartments inside buckets with different aspect ratios (AP). A series of centrifuge tests were performed to investigate the lateral bearing behavior of ISBF in four types of sandy soils. Both static and cyclic lateral loads were applied by an electrical actuator in a load-controlled system. The first technique interpolated the lateral bearing capacity from the load-displacement curve and reinforced the results with the stiffness-displacement relationship. Moreover, displacement rate was calculated and plotted to obtain the lateral critical and ultimate bearing capacity as the second method. During cyclic tests, the first several cycles changed the lateral displacement and stiffness significantly, whereas the last several cycles did not obviously affect them. It was demonstrated that the geometric designs of ISBF had limited influence on its lateral bearing behavior, but the soil conditions of the foundation did bring about an obvious difference. The lateral capacity of ISBF was further compared to original suction bucket foundation (OSBF), thereby illustrating the advantages of the ISBF in offshore wind turbine constructions.},
doi = {10.1016/j.oceaneng.2017.06.048},
journal = {Ocean Engineering},
number = C,
volume = 141,
place = {United States},
year = {Wed Jun 28 00:00:00 EDT 2017},
month = {Wed Jun 28 00:00:00 EDT 2017}
}
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Works referencing / citing this record:
Evaluation of Undrained Bearing Capacities of Wide-Shallow Bucket Foundation with Honeycomb Bulkheads in Clay
journal, December 2019
- Wang, Qingshan; Han, Xun; Guan, Yunfei
- Advances in Civil Engineering, Vol. 2019