A flight experimental platform for synchrophasing control based on a small propeller UAV
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Turboprop engine has the advantages of high efficiency and high thrust, but it has not been widely used in the civil field because of the noise excited by the low speed propellers. Propeller synchrophasing control is an active noise control method without increasing the weight of the airframe, which can attenuate the noise level in the cabin by controlling the relative phase among multiple propellers. It is generally accepted that altitude and airspeed have a great influence on the noise reduction effect of propeller synchrophasing, but there is no theoretical research about how these two factors affect the noise level. Therefore, flight experiment is considered to be a credible way. However, flight experiments of propeller synchrophasing control in turboprop aircraft have been accomplished in few countries due to enormous cost and inconvenience. An experimental platform of synchrophasing control based on a two-propeller small unmanned air vehicle (UAV) is proposed which can carry out the flight experiment research in a low-cost way. The phase angle sensor, the FOC-based scheme of motor driving, the all-slave synchrophasing control and the coordination between speed and phase difference control are presented in the UAV platform to meet its synchrophasing control precision requirement, experimental results prove that all of them can significantly enhance the performance of synchrophasing control. Noise characteristics of propellers are studied in the flight experiments, the noise predicted by the noise model is highly consistent with the actual measured noise, which verifies that the noise characteristics of small UAV accord with propeller signature theory. Based on the noise model, propeller synchrophasing has a steady effect to minimizing noise in the UAV platform. These show that the UAV platform is a feasible solution for propeller synchrophasing research.
Keywordspropeller synchrophasing noise reduction small UAV flight experimental platform low cost
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- 3.Magliozzi B. Synchrophasing for cabin noise reduction of propellerdriven airplanes. In: Proceedings of the 8th Aeroacoustics Conference. Atlanta, 1983. 717Google Scholar
- 7.Huang D, Ferguson N, Yang T, et al. Synchrophase vibration control for isolated rotating machines. In: INTER-NOISE and NOISE-CON Congress and Conference Proceedings. Institute of Noise Control Engineering, Hong Kong. 2017. 255: 3845–3856Google Scholar
- 8.Kumar R, Nemati A, Kumar M, et al. Position and attitude control by rotor tilt and rotor speed synchronization for single axis tilting-rotor quadcopter. In: ASME 2017 Dynamic Systems and Control Conference. American Society of Mechanical Engineers. Tysons, 2017. V003T39A005Google Scholar
- 9.Jones J D, Fuller C R. An experimental investigation of the interior noise control effects of propeller synchrophasing. NASA Technical Report. NASA CR-178185. National Aeronautics and Space Administration, 1986Google Scholar
- 10.Pla F, Goodman G, Ranaudo R, et al. Cabin noise cancellation using active rpm control OV-10A flight test results. In: Proceedings of the 15th AIAA Aeroacoustics Conference. Long Beach, 1993. 25–27Google Scholar
- 11.Ewing M, Kirk M, Swearingen J. Beech 1900D flight test to characterize propeller noise on the fuselage exterior. In: Proceedings of the AIAA/CEAS Aeroacoustics Conference and Exhibit, Maastricht, 2001. 2110Google Scholar
- 12.David M. Blunt and brian rebbechhi. propeller synchronous angle optimisation study. In: Proceedings of the 13th AIAA/CEAS Aeroacoustics Conference. Rome, 2007. 1–10Google Scholar
- 13.Huang X, Wang Y, Sheng L. Synchrophasing control in a multi-propeller driven aircraft. In: Proceedings of the American Control Conference. Chicago: IEEE. 2015. 1836–1841Google Scholar
- 15.Yedamale P. Brushless DC (BLDC) motor fundamentals. Microchip Technology Inc, 2003, 20: 3–15Google Scholar
- 16.Rau D, Rodina J, Palkovič L, et al. Sensorless field oriented control of BLDC motors for MAVs. Trans Electric Eng, 2015, 4: 91–96Google Scholar
- 17.Simplifying motor control design for the masses: TI now offers InstaSPIN ™-FOC sensorless motor control technology for low-cost motor applications. News Releases. Texas Instuments. 2013Google Scholar