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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ro, Ki Deok |
| Copyright Year | 2009 |
| Abstract | The performance improvement for a propulsion mechanism of Weis-Fogh type was attempted by using an elastic rubber wing. The elastic wings were made of rubber and wood with the rubber rate of 0%, 25%, and 50% in the wing area. The thrust and drag on the wing were measured for various velocity ratio V/U, opening angles of α=15° and α=30°. The average thrust coefficient and average thrust efficiency of the elastic wing were increased compared to those of the rigid wing, and the average drag coefficient was decreased; overall, by using elastic wing, the thrust, drag, and efficiency characteristics were improved. For an elastic wing with opening angle α=15° and rubber rate Rs=50% which relatively had the greatest performance improvement, thrust coefficient was increased by 30%, drag coefficient was decreased by 21%, and propulsive efficiency was increased by 17% in average compared to the rigid wing with Rs=0%. |
| Starting Page | 836 |
| Ending Page | 844 |
| Page Count | 9 |
| File Format | |
| ISSN | 1738494X |
| Journal | Journal of Mechanical Science and Technology |
| Volume Number | 23 |
| Issue Number | 3 |
| e-ISSN | 19763824 |
| Language | English |
| Publisher | Korean Society of Mechanical Engineers |
| Publisher Date | 2009-06-28 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Hydraulic machine Propulsion mechanism Fluid force Elastic wing Rubber type Performance improvement Industrial and Production Engineering Vibration, Dynamical Systems, Control Mechanical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Mechanical Engineering |
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