Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors
The acquisition of aerodynamic loads on helicopter rotors is fundamental to the study of helicopter performance optimization, structural design, flight control, and other aspects. However, at present, aerodynamic loads on rotors are primarily obtained through theoretical calculations, simulation ana...
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MDPI AG
2025-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/6/1911 |
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| author | Shuaike Jiao Jiahong Zheng |
| author_facet | Shuaike Jiao Jiahong Zheng |
| author_sort | Shuaike Jiao |
| collection | DOAJ |
| description | The acquisition of aerodynamic loads on helicopter rotors is fundamental to the study of helicopter performance optimization, structural design, flight control, and other aspects. However, at present, aerodynamic loads on rotors are primarily obtained through theoretical calculations, simulation analysis, and wind tunnel tests, with few reports on flight measurements. This paper proposes a method for obtaining helicopter rotor aerodynamic loads by flapping moment measurements in flight with strain gauge sensors. First, strain gauge sensors are installed at different cross-sectional positions on the rotor blades to measure strain during flight. Then, the strains are incorporated into the blade flapping motion equations to establish the relationship between rotor aerodynamic loads and flapping moment. Finally, the aerodynamic loads on the rotor are calculated by the relationship. This method can provide more accurate load calculation results compared to simulation computations and wind tunnel tests. In this paper, the distribution patterns of rotor aerodynamic loads were investigated, which aligned with theoretical analysis and can offer valuable insights for blade design optimization. |
| format | Article |
| id | doaj-art-5fec103bfef84bd5996cc15cf004bcfb |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-5fec103bfef84bd5996cc15cf004bcfb2025-08-20T02:43:07ZengMDPI AGSensors1424-82202025-03-01256191110.3390/s25061911Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge SensorsShuaike Jiao0Jiahong Zheng1Chinese Flight Test Establishment, Xi’an 710089, ChinaChinese Flight Test Establishment, Xi’an 710089, ChinaThe acquisition of aerodynamic loads on helicopter rotors is fundamental to the study of helicopter performance optimization, structural design, flight control, and other aspects. However, at present, aerodynamic loads on rotors are primarily obtained through theoretical calculations, simulation analysis, and wind tunnel tests, with few reports on flight measurements. This paper proposes a method for obtaining helicopter rotor aerodynamic loads by flapping moment measurements in flight with strain gauge sensors. First, strain gauge sensors are installed at different cross-sectional positions on the rotor blades to measure strain during flight. Then, the strains are incorporated into the blade flapping motion equations to establish the relationship between rotor aerodynamic loads and flapping moment. Finally, the aerodynamic loads on the rotor are calculated by the relationship. This method can provide more accurate load calculation results compared to simulation computations and wind tunnel tests. In this paper, the distribution patterns of rotor aerodynamic loads were investigated, which aligned with theoretical analysis and can offer valuable insights for blade design optimization.https://www.mdpi.com/1424-8220/25/6/1911strain gauge sensorsflight testhelicopter rotorflapping momentequivalent aerodynamic force |
| spellingShingle | Shuaike Jiao Jiahong Zheng Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors Sensors strain gauge sensors flight test helicopter rotor flapping moment equivalent aerodynamic force |
| title | Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors |
| title_full | Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors |
| title_fullStr | Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors |
| title_full_unstemmed | Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors |
| title_short | Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors |
| title_sort | aerodynamics analysis of helicopter rotor in flight test using strain gauge sensors |
| topic | strain gauge sensors flight test helicopter rotor flapping moment equivalent aerodynamic force |
| url | https://www.mdpi.com/1424-8220/25/6/1911 |
| work_keys_str_mv | AT shuaikejiao aerodynamicsanalysisofhelicopterrotorinflighttestusingstraingaugesensors AT jiahongzheng aerodynamicsanalysisofhelicopterrotorinflighttestusingstraingaugesensors |