Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades
An optimal procedure for the design of rotor blade that generates low vibratory hub loads in nonaxial flow conditions is presented and applied to a helicopter rotor in forward flight, a condition where vibrations and noise become severe. Blade shape and structural properties are the design parameter...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2016/1302564 |
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| _version_ | 1832562511531999232 |
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| author | G. Bernardini E. Piccione A. Anobile J. Serafini M. Gennaretti |
| author_facet | G. Bernardini E. Piccione A. Anobile J. Serafini M. Gennaretti |
| author_sort | G. Bernardini |
| collection | DOAJ |
| description | An optimal procedure for the design of rotor blade that generates low vibratory hub loads in nonaxial flow conditions is presented and applied to a helicopter rotor in forward flight, a condition where vibrations and noise become severe. Blade shape and structural properties are the design parameters to be identified within a binary genetic optimization algorithm under aeroelastic stability constraint. The process exploits an aeroelastic solver that is based on a nonlinear, beam-like model, suited for the analysis of arbitrary curved-elastic-axis blades, with the introduction of a surrogate wake inflow model for the analysis of sectional aerodynamic loads. Numerical results are presented to demonstrate the capability of the proposed approach to identify low vibratory hub loads rotor blades as well as to assess the robustness of solution at off-design operating conditions. Further, the aeroacoustic assessment of the rotor configurations determined is carried out in order to examine the impact of low-vibration blade design on the emitted noise field. |
| format | Article |
| id | doaj-art-0b10c00a42c4488596defe1a4a97b64f |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-0b10c00a42c4488596defe1a4a97b64f2025-02-03T01:22:25ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342016-01-01201610.1155/2016/13025641302564Optimal Design and Acoustic Assessment of Low-Vibration Rotor BladesG. Bernardini0E. Piccione1A. Anobile2J. Serafini3M. Gennaretti4Department of Engineering, Roma Tre University, 00146 Rome, ItalyDepartment of Engineering, Roma Tre University, 00146 Rome, ItalyDepartment of Mechanical, Materials and Manufacturing Engineering, The University of Nottingham, Nottingham NG7 2RD, UKDepartment of Engineering, Roma Tre University, 00146 Rome, ItalyDepartment of Engineering, Roma Tre University, 00146 Rome, ItalyAn optimal procedure for the design of rotor blade that generates low vibratory hub loads in nonaxial flow conditions is presented and applied to a helicopter rotor in forward flight, a condition where vibrations and noise become severe. Blade shape and structural properties are the design parameters to be identified within a binary genetic optimization algorithm under aeroelastic stability constraint. The process exploits an aeroelastic solver that is based on a nonlinear, beam-like model, suited for the analysis of arbitrary curved-elastic-axis blades, with the introduction of a surrogate wake inflow model for the analysis of sectional aerodynamic loads. Numerical results are presented to demonstrate the capability of the proposed approach to identify low vibratory hub loads rotor blades as well as to assess the robustness of solution at off-design operating conditions. Further, the aeroacoustic assessment of the rotor configurations determined is carried out in order to examine the impact of low-vibration blade design on the emitted noise field.http://dx.doi.org/10.1155/2016/1302564 |
| spellingShingle | G. Bernardini E. Piccione A. Anobile J. Serafini M. Gennaretti Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades International Journal of Rotating Machinery |
| title | Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades |
| title_full | Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades |
| title_fullStr | Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades |
| title_full_unstemmed | Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades |
| title_short | Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades |
| title_sort | optimal design and acoustic assessment of low vibration rotor blades |
| url | http://dx.doi.org/10.1155/2016/1302564 |
| work_keys_str_mv | AT gbernardini optimaldesignandacousticassessmentoflowvibrationrotorblades AT epiccione optimaldesignandacousticassessmentoflowvibrationrotorblades AT aanobile optimaldesignandacousticassessmentoflowvibrationrotorblades AT jserafini optimaldesignandacousticassessmentoflowvibrationrotorblades AT mgennaretti optimaldesignandacousticassessmentoflowvibrationrotorblades |