Results 11 to 20 of about 15,230 (231)
Helicopter performance enhancement by alleviating retreating blade stall using active flow control
Scientific African, 2023 In this study, a model was created numerically to study the effect of active flow control on helicopter blade to improve the retreating blade stall. Active flow control is applied to helicopter blades to improve retreating blade stall along with the ...
Tarek Mokhtar Tawfik Soltan +1 more
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IEEE Access, 2022 For the typical multi-component periodic micro-Doppler signal parameter estimation, a helicopter rotor feature extraction method based on flicker phenomenon and phase compensation is proposed in this paper.
Saiqiang Xia +6 more
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Eng, 2021 In the present study, a three-dimensional finite element framework has been developed to model a full-scale multilaminate composite helicopter rotor blade. Tip deformation and stress behavior have been analyzed for external aerodynamic loading conditions
Arunabha M. Roy
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Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade
Fracture and Structural Integrity, 2021 The main objective of the work is to study the fracture behavior of AA6061-graphite material using both experimental technique and finite element simulation by considering helicopter rotor blade as a case study.
Saleemsab Doddamani +3 more
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Reducing Helicopter Vibration Loads by Individual Blade Control with Genetic Algorithm
Machines, 2022 A rotor that can realize individual blade pitch control was designed. This paper focuses on finding the trend of helicopter vibration loads after applying multiple high-order harmonic control.
Renguo Yang +3 more
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Chord Morphing for Helicopter Rotor Blades [PDF]
ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, 2019 Abstract Since helicopter rotors have different demands from different flight stats, the final design is always a compromise between flight stats such as hover and fast forward flight. Two of the design parameters are twist and chord length.
Riemenschneider, Johannes +3 more
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Научный вестник МГТУ ГА, 2018 The efficiency of the helicopter main rotor in the hover mode is very important, because this mode essentially determines the performance characteristics of the helicopter.
Y. M. Ignatkin +2 more
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Numerical Simulation of Helicopter Rotor Performance Degradation in Natural Rain Encounter
International Journal of Aerospace Engineering, 2021 Sustained flight operation in the rain conditions is still a challenge to a pilot. This problem can be mainly attributed to the aerodynamic performance degradation of aircraft.
Guozhi Li, Yihua Cao
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016 The paper deals with the non-contact method of monitoring the integrity of the main rotor blades of a helicopter. The available methods of monitoring the integrity of the main rotor blades of the helicopter are labor-intensive to implement, their ...
A. I. Danilin, S. V. Zhukov, M. S. Popov
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Dynamics of helicopter rotor blades
Computers & Structures, 1988 A rotating blade finite element with coupled bending, torsion and axial stretching degrees-of-freedom is developed. APL is used for symbolic manipulations required for the development of the element. The element is implemented in MSC/NASTRAN to generate the numerical results.
Magari, P. J. +2 more
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