Solar uav: propulsion system - selection of motor and propeller for male uav
This report relooks at the propulsion system selection for the solar UAV and seeks to obtain a more accurate characterization of the motor-propeller combination in a bigger wind tunnel. In addition, the functionality of the motor over 24-hour operation at temperatures of -40°C is investigated in an...
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| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2014
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| Online Access: | http://hdl.handle.net/10356/61324 |
| _version_ | 1811695692709625856 |
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| author | Ong, Chin Hwee |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Ong, Chin Hwee |
| author_sort | Ong, Chin Hwee |
| collection | NTU |
| description | This report relooks at the propulsion system selection for the solar UAV and seeks to obtain a more accurate characterization of the motor-propeller combination in a bigger wind tunnel. In addition, the functionality of the motor over 24-hour operation at temperatures of -40°C is investigated in an environmental chamber.
The theoretical sizing of the system is revisited, and the XOAR PJN 26 x 12 propeller and Lehner 2240/14 brushless inrunner motor are selected due to availability. The set-up is tested in the National Wind Tunnel Facility (NWTF) at the India Institute of Technology, Kanpur (IIT Kanpur) over a range of throttle settings and wind speeds up to 15m/s. Dimensional analysis is used to characterize the performance of the motor-propeller combination and relationships between the dimensionless performance parameters are obtained.
The range of current setting for wind tunnel testing is limited by the power supply available at NWTF. The performance of the motor-propeller combination at cruise and climb is obtained from the performance parameter relationships through linear extrapolation of RPM values. The off-target efficiencies recorded is due to power losses in the wires and low pitch angle of the propeller. Environmental tests performed on the motor indicate preliminary functionality at 8000m cruise conditions. |
| first_indexed | 2024-10-01T07:27:31Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/61324 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:27:31Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/613242023-03-04T18:58:36Z Solar uav: propulsion system - selection of motor and propeller for male uav Ong, Chin Hwee School of Mechanical and Aerospace Engineering DSO National Laboratories Chue Shek Ming, Randy DRNTU::Engineering::Aeronautical engineering::Propellers DRNTU::Engineering::Aeronautical engineering::Aircraft motors and engines This report relooks at the propulsion system selection for the solar UAV and seeks to obtain a more accurate characterization of the motor-propeller combination in a bigger wind tunnel. In addition, the functionality of the motor over 24-hour operation at temperatures of -40°C is investigated in an environmental chamber. The theoretical sizing of the system is revisited, and the XOAR PJN 26 x 12 propeller and Lehner 2240/14 brushless inrunner motor are selected due to availability. The set-up is tested in the National Wind Tunnel Facility (NWTF) at the India Institute of Technology, Kanpur (IIT Kanpur) over a range of throttle settings and wind speeds up to 15m/s. Dimensional analysis is used to characterize the performance of the motor-propeller combination and relationships between the dimensionless performance parameters are obtained. The range of current setting for wind tunnel testing is limited by the power supply available at NWTF. The performance of the motor-propeller combination at cruise and climb is obtained from the performance parameter relationships through linear extrapolation of RPM values. The off-target efficiencies recorded is due to power losses in the wires and low pitch angle of the propeller. Environmental tests performed on the motor indicate preliminary functionality at 8000m cruise conditions. Bachelor of Engineering (Aerospace Engineering) 2014-06-09T04:30:30Z 2014-06-09T04:30:30Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/61324 en Nanyang Technological University 90 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Aeronautical engineering::Propellers DRNTU::Engineering::Aeronautical engineering::Aircraft motors and engines Ong, Chin Hwee Solar uav: propulsion system - selection of motor and propeller for male uav |
| title | Solar uav: propulsion system - selection of motor and propeller for male uav |
| title_full | Solar uav: propulsion system - selection of motor and propeller for male uav |
| title_fullStr | Solar uav: propulsion system - selection of motor and propeller for male uav |
| title_full_unstemmed | Solar uav: propulsion system - selection of motor and propeller for male uav |
| title_short | Solar uav: propulsion system - selection of motor and propeller for male uav |
| title_sort | solar uav propulsion system selection of motor and propeller for male uav |
| topic | DRNTU::Engineering::Aeronautical engineering::Propellers DRNTU::Engineering::Aeronautical engineering::Aircraft motors and engines |
| url | http://hdl.handle.net/10356/61324 |
| work_keys_str_mv | AT ongchinhwee solaruavpropulsionsystemselectionofmotorandpropellerformaleuav |