Abstract
| Original language | English |
|---|---|
| Article number | 042009 |
| Book series | Journal of Physics: Conference Series |
| Volume | 1037 |
| Issue number | 4 |
| Number of pages | 13 |
| ISSN | 1742-6596 |
| DOIs | |
| Publication status | Published - 2018 |
| Event | The Science of Making Torque from Wind 2018 - Politecnico di Milano (POLIMI), Milan, Italy Duration: 20 Jun 2018 → 22 Jun 2018 Conference number: 7 http://www.torque2018.org/ |
Conference
| Conference | The Science of Making Torque from Wind 2018 |
|---|---|
| Number | 7 |
| Location | Politecnico di Milano (POLIMI) |
| Country | Italy |
| City | Milan |
| Period | 20/06/2018 → 22/06/2018 |
| Internet address |
Bibliographical note
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.Cite this
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Optimal Aero-Elastic Design of a Rotor with Bend-Twist Coupling. / McWilliam, Michael K.; Zahle, Frederik; Dicholkar, Antariksh Chandrashekhar; Verelst, David Robert; Kim, Taeseong.
In: Journal of Physics: Conference Series, Vol. 1037, No. 4, 042009, 2018.Research output: Contribution to journal › Conference article › Research › peer-review
TY - GEN
T1 - Optimal Aero-Elastic Design of a Rotor with Bend-Twist Coupling
AU - McWilliam, Michael K.
AU - Zahle, Frederik
AU - Dicholkar, Antariksh Chandrashekhar
AU - Verelst, David Robert
AU - Kim, Taeseong
N1 - Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
PY - 2018
Y1 - 2018
N2 - Passive Bend-Twist Coupling (BTC) can be used in blades to alleviate loads and generate more Annual Energy Production (AEP). However, BTC is inherently aero-elastic, thus difficult to incorporate into the design with sequential design process. Multi-disciplinary Design Optimization (MDO) is an attractive approach for overcoming these challenges. This paper presents the re-design of a 100kW BTC rotor using the MDO rotor design package HAWTOpt2. In the preliminary design phase, MDO was used to assess the differences between elastic BTC (i.e. off-axis fibers) and geometric BTC (i.e. sweep). This work found that aero-elastic design optimization without BTC was able to achieve a 16% improvement, then with sweep a 18% improvement and with material coupling a 17% improvement. Due to the reduced stiffness of off-axis fibers, material coupled designs had more difficulty satisfying the tip deflection constraint. The geometric BTC concept was chosen for the final design. The design optimization was repeated with additional manufacturing constraints. The final design achieved a 12% improvement.
AB - Passive Bend-Twist Coupling (BTC) can be used in blades to alleviate loads and generate more Annual Energy Production (AEP). However, BTC is inherently aero-elastic, thus difficult to incorporate into the design with sequential design process. Multi-disciplinary Design Optimization (MDO) is an attractive approach for overcoming these challenges. This paper presents the re-design of a 100kW BTC rotor using the MDO rotor design package HAWTOpt2. In the preliminary design phase, MDO was used to assess the differences between elastic BTC (i.e. off-axis fibers) and geometric BTC (i.e. sweep). This work found that aero-elastic design optimization without BTC was able to achieve a 16% improvement, then with sweep a 18% improvement and with material coupling a 17% improvement. Due to the reduced stiffness of off-axis fibers, material coupled designs had more difficulty satisfying the tip deflection constraint. The geometric BTC concept was chosen for the final design. The design optimization was repeated with additional manufacturing constraints. The final design achieved a 12% improvement.
U2 - 10.1088/1742-6596/1037/4/042009
DO - 10.1088/1742-6596/1037/4/042009
M3 - Conference article
VL - 1037
JO - Journal of Physics: Conference Series (Online)
JF - Journal of Physics: Conference Series (Online)
SN - 1742-6596
IS - 4
M1 - 042009
ER -