Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"revolutions per minute (RPM)"”.
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Superconducting rotor with self-contained thermal management system
Superconducting (SC) electric machines can reach incredibly high specific power and are especially desirable for weight-sensitive applications including aircraft electric propulsion. However, thermal management of the cryogenic environment has posed challenges to building practical aerospace SC …
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Propeller performance analysis using lifting line theory
… for the minimum torque at a specific number of revolutions per minute (RPM) at a particular ship speed. This process allows ships to efficiently travel at their design speed. However, it is useful to know how the propeller performs during off-design conditions. This is especially true for naval …
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Aerodynamic and Acoustic Modeling for eVTOL Rotor Noise Prediction
… acoustic spectra were validated against experimental measurements obtained in the Virginia Tech Stability Wind Tunnel. Results demonstrate that turbulence model selection influences local boundary-layer development and sectional aerodynamic loading, leading to modest variations in tonal …
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VO2Max Comparison Between Seated and Standing Ergometry
… protocol (STD). Cadence for each protocol was 60 revolutions per minute (rpm), with resistance being increased 30 Watts each minute until volitional exhaustion. SIT required individuals to perform a maximal exertion test and remain seated until volitional exhaustion. For STD, subjects completed …
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Measurement of aerodynamic characteristics of MAVs using motion tracking
… addressed in aeronautics literature, and more experimental data are required to help better understand the behavior of fixed-wing MAVs. In the current research, aerodynamic and stability characteristics of two MAVs were measured using a motion tracking system. Both the aircraft position and …