Dynamic Strain Measurement of Rotor Blades in Helicopter Flight Using Fiber Bragg Grating Sensor [PDF]
Sensors, 2023 Fiber Bragg grating (FBG) sensor has a lot of advantages over the resistance strain gauge and has been used in many applications. However, there are few applications of rotor blade dynamic measurement in helicopter flight.
Honglin Zhang +3 more
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Aerodynamics Analysis of Helicopter Rotor in Flight Test Using Strain Gauge Sensors [PDF]
SensorsThe acquisition of aerodynamic loads on helicopter rotors is fundamental to the study of helicopter performance optimization, structural design, flight control, and other aspects.
Shuaike Jiao, Jiahong Zheng
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STRENGTH ANALYSIS OF A PROTOTYPE COMPOSITE HELICOPTER ROTOR BLADE SPAR [PDF]
Applied Computer Science, 2022 This paper investigates the strenght of a conceptual main rotor blade dedicated to an unmanned helicopter. The blade is made of smart materials in order to optimize the efficiency of the aircraft by increasing its aerodynamic performance.
Rafał KLIZA +4 more
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Numerical Calculation Of Aerodynamic Loads Of Helicopter Rotor Using CFD / BET Method [PDF]
فناوری در مهندسی هوافضا, 2023 Considering the complexity of analyzing the phenomena affecting the aerodynamic performance of the main rotor helicopter and how to simulate the dynamic movements of the blade relative to the center of rotation, Using methods such as blade element theory
Mehdi Naderi Nezhad +2 more
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Active twist of model rotor blades with D-spar design [PDF]
Transport, 2007 The design methodology based on the planning of experiments and response surface technique has been developed for an optimum placement of Macro Fiber Composite (MFC) actuators in the helicopter rotor blades.
A. Kovalovs, E. Barkanov, S. Gluhihs
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Fracture fault analysis of tail rotor on a helicopter
Hangkong gongcheng jinzhan, 2023 Finding out the reason of the fracture fault of tail rotor on a helicopter is of practical significance for using and maintaining the helicopter and is of significant reference for improving safety of new type helicopter. The fracture fault of tail rotor
HOU Bo +3 more
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Modelling of Flow Characteristics of Main Rotor with Elliptical Root Section in Hover Mode [PDF]
E3S Web of Conferences, 2023 The modelling of a helicopter main rotor flow field in hover regime is being considered. The aerodynamic and aeroacoustics characteristics of two rotor models with different blade root geometries are compared.
Kusyumov Sergey +4 more
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Modeling and Analysis of Rotor System Tolerance Based on Small Displacement Torsor
Hangkong gongcheng jinzhan, 2021 Helicopter vibration is closely related to manufacturing technology.Reducing manufacturing error can effectively reduce helicopter vibration.In order to analyze the geometric rotation accuracy of helicopter rotor system, the key tolerance on the assembly
LIU Zhuangzhuang, HAN Dong
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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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