Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial Rotors
Multirotors are gaining great importance in the layout of innovative and more agile mobility. In this framework, a possible solution to developing an aircraft complying with the stringent size requirements characterizing this type of application may be a coaxial rotor configuration. To exploit sever...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Aerospace |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2226-4310/10/6/535 |
| _version_ | 1827739095841898496 |
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| author | Nicola Russo Aniello Daniele Marano Giuseppe Maurizio Gagliardi Michele Guida Tiziano Polito Francesco Marulo |
| author_facet | Nicola Russo Aniello Daniele Marano Giuseppe Maurizio Gagliardi Michele Guida Tiziano Polito Francesco Marulo |
| author_sort | Nicola Russo |
| collection | DOAJ |
| description | Multirotors are gaining great importance in the layout of innovative and more agile mobility. In this framework, a possible solution to developing an aircraft complying with the stringent size requirements characterizing this type of application may be a coaxial rotor configuration. To exploit several possibilities linked to coaxial rotors, a scaled experimental model is designed to evaluate the performances of the counter-rotating propeller system, specifically regarding the distance between the two propellers. Both thrust and noise are considered as parameters of interest. Two brushless motors are deployed, whereas the propellers’ angular velocity, in terms of rounds per minute (rpm), is controlled by an external control system. Tests are conducted on both single isolated propellers as well as on the counter-rotating system: the two propellers and their respective motors are characterized regarding the thrust. Furthermore, a comparison with a numerical model is performed. Noise evaluation on the single propeller shows a motor contribution prevalence at a low rpm range (1140–1500 rpm) and a propeller prevalence for angular velocities higher than 1860 rpm. By varying the distances between the propellers, a sensitivity analysis is performed with the aim of identifying the optimum configuration, taking into account both noise and thrust performances. |
| first_indexed | 2024-03-11T02:54:14Z |
| format | Article |
| id | doaj.art-d8fca39196304c25829180660ca42eb2 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-11T02:54:14Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-d8fca39196304c25829180660ca42eb22023-11-18T08:49:58ZengMDPI AGAerospace2226-43102023-06-0110653510.3390/aerospace10060535Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial RotorsNicola Russo0Aniello Daniele Marano1Giuseppe Maurizio Gagliardi2Michele Guida3Tiziano Polito4Francesco Marulo5Industrial Engineering Department, University of Naples Federico II, Via Claudio 21, 80125 Napoli, ItalyIndustrial Engineering Department, University of Naples Federico II, Via Claudio 21, 80125 Napoli, ItalyIndustrial Engineering Department, University of Naples Federico II, Via Claudio 21, 80125 Napoli, ItalyIndustrial Engineering Department, University of Naples Federico II, Via Claudio 21, 80125 Napoli, ItalyIndustrial Engineering Department, University of Naples Federico II, Via Claudio 21, 80125 Napoli, ItalyIndustrial Engineering Department, University of Naples Federico II, Via Claudio 21, 80125 Napoli, ItalyMultirotors are gaining great importance in the layout of innovative and more agile mobility. In this framework, a possible solution to developing an aircraft complying with the stringent size requirements characterizing this type of application may be a coaxial rotor configuration. To exploit several possibilities linked to coaxial rotors, a scaled experimental model is designed to evaluate the performances of the counter-rotating propeller system, specifically regarding the distance between the two propellers. Both thrust and noise are considered as parameters of interest. Two brushless motors are deployed, whereas the propellers’ angular velocity, in terms of rounds per minute (rpm), is controlled by an external control system. Tests are conducted on both single isolated propellers as well as on the counter-rotating system: the two propellers and their respective motors are characterized regarding the thrust. Furthermore, a comparison with a numerical model is performed. Noise evaluation on the single propeller shows a motor contribution prevalence at a low rpm range (1140–1500 rpm) and a propeller prevalence for angular velocities higher than 1860 rpm. By varying the distances between the propellers, a sensitivity analysis is performed with the aim of identifying the optimum configuration, taking into account both noise and thrust performances.https://www.mdpi.com/2226-4310/10/6/535multirotorscoaxial rotorscounter-rotating propellersthrust performancesnoise |
| spellingShingle | Nicola Russo Aniello Daniele Marano Giuseppe Maurizio Gagliardi Michele Guida Tiziano Polito Francesco Marulo Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial Rotors Aerospace multirotors coaxial rotors counter-rotating propellers thrust performances noise |
| title | Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial Rotors |
| title_full | Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial Rotors |
| title_fullStr | Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial Rotors |
| title_full_unstemmed | Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial Rotors |
| title_short | Thrust and Noise Experimental Assessment on Counter-Rotating Coaxial Rotors |
| title_sort | thrust and noise experimental assessment on counter rotating coaxial rotors |
| topic | multirotors coaxial rotors counter-rotating propellers thrust performances noise |
| url | https://www.mdpi.com/2226-4310/10/6/535 |
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