Parallel Analysis of Offshore Wind Turbine Structures under Ultimate Loads
This paper investigates efficient design of offshore wind turbine (OWT) support structures under ultimate loads and proposes three schemes to overcome excessive computer time due to many required external loads. The first is the assumption of a rigid support structure to find blade wind forces, so t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/21/4708 |
| _version_ | 1818555461232754688 |
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| author | Shen-Haw Ju Yu-Cheng Huang Hsin-Hsiang Hsu |
| author_facet | Shen-Haw Ju Yu-Cheng Huang Hsin-Hsiang Hsu |
| author_sort | Shen-Haw Ju |
| collection | DOAJ |
| description | This paper investigates efficient design of offshore wind turbine (OWT) support structures under ultimate loads and proposes three schemes to overcome excessive computer time due to many required external loads. The first is the assumption of a rigid support structure to find blade wind forces, so that these forces are only dependent on wind profiles, which limits different cases in the structural analyses. Since the blade information is often confidential in turbine companies, this two-stage analysis allows the hub force to be the input data for the support structure design. The second is using a few control loads to perform the steel design between the second and the second-last design cycles. The third is using parallel computational procedures, since all loading cases can be independently executed in different CPU cores and computers. The test cases, with 5044 loading cases, indicate that the proposed method is fully parallel and can complete the design procedures using a few personal computers within several days. Test cases include IEC 61400-3, tropical cyclone, and seismic loads; although there are many loads to be considered, steel design is governed by a limited number of load cases, which are discussed in this paper. |
| first_indexed | 2024-12-12T09:53:46Z |
| format | Article |
| id | doaj.art-45c34acfc3de42daae50cb7ada6b0e87 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-12T09:53:46Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-45c34acfc3de42daae50cb7ada6b0e872022-12-22T00:28:12ZengMDPI AGApplied Sciences2076-34172019-11-01921470810.3390/app9214708app9214708Parallel Analysis of Offshore Wind Turbine Structures under Ultimate LoadsShen-Haw Ju0Yu-Cheng Huang1Hsin-Hsiang Hsu2Department of Civil Engineering, National Cheng Kung University, Tainan City 70101, TaiwanDepartment of Civil Engineering, National Cheng Kung University, Tainan City 70101, TaiwanDepartment of Civil Engineering, National Cheng Kung University, Tainan City 70101, TaiwanThis paper investigates efficient design of offshore wind turbine (OWT) support structures under ultimate loads and proposes three schemes to overcome excessive computer time due to many required external loads. The first is the assumption of a rigid support structure to find blade wind forces, so that these forces are only dependent on wind profiles, which limits different cases in the structural analyses. Since the blade information is often confidential in turbine companies, this two-stage analysis allows the hub force to be the input data for the support structure design. The second is using a few control loads to perform the steel design between the second and the second-last design cycles. The third is using parallel computational procedures, since all loading cases can be independently executed in different CPU cores and computers. The test cases, with 5044 loading cases, indicate that the proposed method is fully parallel and can complete the design procedures using a few personal computers within several days. Test cases include IEC 61400-3, tropical cyclone, and seismic loads; although there are many loads to be considered, steel design is governed by a limited number of load cases, which are discussed in this paper.https://www.mdpi.com/2076-3417/9/21/4708tropic cyclonedynamic time-history analysisoffshore wind turbineoptimal steel designparallel computationsupport structureultimate load |
| spellingShingle | Shen-Haw Ju Yu-Cheng Huang Hsin-Hsiang Hsu Parallel Analysis of Offshore Wind Turbine Structures under Ultimate Loads Applied Sciences tropic cyclone dynamic time-history analysis offshore wind turbine optimal steel design parallel computation support structure ultimate load |
| title | Parallel Analysis of Offshore Wind Turbine Structures under Ultimate Loads |
| title_full | Parallel Analysis of Offshore Wind Turbine Structures under Ultimate Loads |
| title_fullStr | Parallel Analysis of Offshore Wind Turbine Structures under Ultimate Loads |
| title_full_unstemmed | Parallel Analysis of Offshore Wind Turbine Structures under Ultimate Loads |
| title_short | Parallel Analysis of Offshore Wind Turbine Structures under Ultimate Loads |
| title_sort | parallel analysis of offshore wind turbine structures under ultimate loads |
| topic | tropic cyclone dynamic time-history analysis offshore wind turbine optimal steel design parallel computation support structure ultimate load |
| url | https://www.mdpi.com/2076-3417/9/21/4708 |
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