1–50 of 677 hits
|

    Multi-fidelity optimization strategy for the industrial aerodynamic design of helicopter rotor blades

    Leusink, Debbie / Alfano, David / Cinnella, Paola | Elsevier | 2015
    Keywords: Helicopter rotor blades

    CFD analysis of complete helicopter configurations – lessons learnt from the GOAHEAD project

    Steijl, R. / Barakos, G.N. | Elsevier | 2011
    Keywords: Helicopter rotor , Rotor–fuselage interaction

    Numerical Investigations of Aerodynamics Characteristics of Main Rotors in Helicopter UAV Used for Pesticide Spraying in Agriculture

    Tran, Ngoc Khanh / Dao, Van Quang / Nguyen, Phu Khanh | Trans Tech Publications | 2019
    Keywords: Helicopter , Main Rotor

    A simulation investigation of helicopter ground resonance phenomenon

    Stanislawski, Jaroslaw | Emerald Group Publishing | 2019
    Keywords: Rotor blades , Helicopter

    Mars Helicopter Ingenuity Rotor Geometry

    W. J. F. Koning / M. Dominguez | NTIS | 2024
    Keywords: Helicopter , Rotor

    About the impact of wind turbine blade tip vortices on helicopter rotor trim and rotor blade motion

    van der Wall, Berend G. / Lehmann, Paul H. | Springer Verlag | 2017
    Keywords: Vortex-rotor interaction , Helicopter rotor trim , Rotor blade motion

      About the impact of wind turbine blade tip vortices on helicopter rotor trim and rotor blade motion

      van der Wall, Berend G. / Lehmann, Paul H. | Online Contents | 2017
      Keywords: Vortex-rotor interaction , Rotor blade motion , Helicopter rotor trim

    Helicopter performance improvement by variable rotor speed and variable blade twist

    Han, Dong / Pastrikakis, Vasileios / Barakos, George N. | Elsevier | 2016
    Keywords: Helicopter , Variable rotor speed

    Assessment of a state-space aeroelastic rotor model for rotorcraft flight dynamics

    Gori, Riccardo / Serafini, Jacopo / Molica Colella, Marco et al. | Springer Verlag | 2016
    Keywords: Rotor aeroelasticity , State-space rotor modelling , Helicopter comprehensive modelling

      Assessment of a state-space aeroelastic rotor model for rotorcraft flight dynamics

      Gori, Riccardo / Serafini, Jacopo / Molica Colella, Marco et al. | Online Contents | 2016
      Keywords: State-space rotor modelling , Rotor aeroelasticity , Helicopter comprehensive modelling

    Numerical characterization of helicopter noise hemispheres

    Free access
    GENNARETTI, MASSIMO / SERAFINI, JACOPO / BERNARDINI, Giovanni et al. | BASE | 2016
    Keywords: Helicopter noise hemisphere , Inverse helicopter dynamic , Rotor aeroelasticity

      Numerical characterization of helicopter noise hemispheres

      Free access
      Gennaretti, M. / Serafini, J. / Bernardini, G. et al. | BASE | 2016
      Keywords: helicopter noise hemisphere , inverse helicopter dynamic , rotor aeroelasticity

      Numerical characterization of helicopter noise hemispheres

      Gennaretti, M. / Serafini, J. / Bernardini, G. et al. | Elsevier | 2016
      Keywords: Helicopter noise hemisphere , Inverse helicopter dynamics , Rotor aeroelasticity

    High-fidelity optimization framework for helicopter rotors

    Imiela, Manfred | Elsevier | 2011
    Keywords: Helicopter , Rotor

    Design and dynamics of a 2PSS+PSR+SP+RUPUR-type parallel rotor of helicopter

    Lu, Yi / Chang, Zefeng / Ye, Nijia | SAGE Publications | 2023
    Keywords: parallel rotor , Helicopter

    Mars Helicopter Ingenuity Rotor Geometry

    Witold J F Koning / Michelle Dominguez | NTRS | 2024
    Keywords: Rotor , Helicopter

    Simulating unsteady aerodynamics of helicopter rotor with panel/viscous vortex particle method

    Tan, Jian-feng / Wang, Hao-wen | Elsevier | 2013
    Keywords: Helicopter rotor , Rotor wake

    Single-Rotor Helicopter Dynamics and Maneuvering Simulation

    Free access
    Kada, Belkacem | BASE | 2020
    Keywords: Helicopter dynamics , Helicopter maneuvering , Single-rotor helicopter , UH-60 helicopter

    Loads Transfer Principles of a Four-Bladed Scissors Rotor

    Han, Dong / Barakos, George N. | AIAA | 2022
    Keywords: Helicopter Rotor , Rotor Blades

    CFD-CSD method for rotor aeroelastic analysis with free wake model

    Wang, Siwen / Cheng, Qiyou | Emerald Group Publishing | 2022
    Keywords: Rotor aeroelasticity , Helicopter

    Rotor Power Savings and Pitch-Link Load Reductions with Spanwise-Varying Active Camber Morphing

    Komp, Dominik / Hajek, Manfred / Yavrucuk, Ilkay et al. | AIAA | 2024
    Keywords: Helicopter Rotor , Active Rotor , Rotor Design , Rotor Aerodynamics

    Mission-based optimal morphing parameters for rotors with combined chord and twist morphing

    Free access
    Majeti, Rohin Kumar / Benz, Stephan | German Aerospace Center (DLR) | 2022
    Keywords: Helicopter rotor

    Airflow hazard prediction for helicopter flight in icing condition

    Cao, Yihua / Li, Guozhi / Sheridan, J | SAGE Publications | 2014
    Keywords: rotor icing , Helicopter

    Evaluation of quad ducted-fan helicopter

    Miwa, Masafumi / Uemura, Shinji / Ishihara, Yasuyuki et al. | Emerald Group Publishing | 2013
    Keywords: Quad ducted-fan helicopter , Multi rotor helicopter

    Design optimization of helicopter rotor using kriging

    Kizhakke Kodakkattu, Saijal / Nair, Prabhakaran / M.L., Joy | Emerald Group Publishing | 2018
    Keywords: Helicopter rotor

    Vibration reduction of helicopter with trailing-edge flaps at various flying conditions

    Kodakkattu, SK / Joy, ML / Prabhakaran Nair, K | SAGE Publications | 2017
    Keywords: helicopter vibration , rotor blade

    Analyzing Helicopter Evasive Maneuver Effectiveness Against Rocket-Propelled Grenades

    Anderson, David / Thomson, Douglas | AIAA | 2013
    Keywords: Helicopter Rotor , Rotor Wake , Westland Lynx Helicopter

    Development and validation of a hybrid method for predicting helicopter rotor impulsive noise

    Wang, Liangquan / Xu, Guohua / Shi, Yongjie | SAGE Publications | 2019
    Keywords: Helicopter rotor

    Linearly variable chord-extension morphing for helicopter rotor blades

    Free access
    Majeti, Rohin K. / van der Wall, Berend G. / Balzarek, Christoph G. | Springer Verlag | 2021
    Keywords: Rotor blade morphing , Helicopter rotor efficiency

    Rotor Performance Predictions of a Next Generation Mars Science Helicopter

    Dorsa Shirazi / Athena Chan / Wayne Johnson | NTRS
    Keywords: Mars Science Helicopter , Rotor Performance

    High-efficiency hybrid trim method for CFD simulation of rigid coaxial rotor

    Qi, Haotian / Wang, Ping / Jiang, Linsong et al. | SAGE Publications | 2023
    Keywords: rigid coaxial rotor , helicopter

    Tip Vortex Meandering Characteristics of a Model Helicopter Rotor with Different Tip Shapes

    Uluocak, Sinem / Percin, Mustafa / Uzol, Oguz | AIAA | 2023
    Keywords: Helicopter Rotor , Rotor Aerodynamics

    Characterization and selection of basic parameters for steering servo of a small remotely-piloted single-rotor helicopter with tail rotor

    D’yakonov, D. A. / Zavalov, O. A. / Kuptsov, D. A. et al. | Springer Verlag | 2014
    Keywords: remotely piloted helicopter , rotor system , rotor blade , tail rotor blade , rotor head , tail rotor hub

      Characterization and selection of basic parameters for steering servo of a small remotely-piloted single-rotor helicopter with tail rotor

      D’yakonov, D. A. / Zavalov, O. A. / Kuptsov, D. A. et al. | Online Contents | 2014
      Keywords: rotor head , remotely piloted helicopter , tail rotor hub , rotor system , rotor blade , tail rotor blade

    Smart Twisting Active Rotor (STAR) - Pre-Test Predictions

    Free access
    van der Wall, Berend G. / Lim, Joon W. / Riemenschneider, Johannes et al. | German Aerospace Center (DLR) | 2022
    Keywords: slowed rotor concept , helicopter vibration , rotor stall , active rotor blade control

    Multiple-Surrogate Approach to Helicopter Rotor Blade Vibration Reduction

    Glaz, Bryan / Goel, Tushar / Liu, Li et al. | AIAA | 2009
    Keywords: Helicopter Rotor , Helicopter Vibration Reduction , Hingeless Rotor Blade

    Rotor-state feedback control design to improve helicopter turbulence alleviation in hover

    Ji, Honglei / Chen, Renliang / Li, Pan | SAGE Publications | 2018
    Keywords: rotor-state feedback , Helicopter

    Modelling Helicopter Flight Dynamics: Trim and Stability Analysis

    Padfield, Gareth D. | Wiley | 2018
    Keywords: helicopter flight dynamics , rotor dynamic effects , helicopter motion

    Numerical Modeling of Helicopter Main Rotor Behavior near a Small-Scale Helideck by the Vortex Method

    Aparinov, A. A. / Kritskii, B. S. / Setukha, A. V. | Springer Verlag | 2017
    Keywords: main rotor , helicopter

      Numerical Modeling of Helicopter Main Rotor Behavior near a Small-Scale Helideck by the Vortex Method

      Aparinov, A. A. / Kritskii, B. S. / Setukha, A. V. | Online Contents | 2017
      Keywords: helicopter , main rotor

    Tip Vortex Study of a Rotor with Double-Swept Blade Tips

    Wolf, C. Christian / Braukmann, Johannes N. / Müller, Martin M. | AIAA | 2024
    Keywords: Helicopter Rotor , Rotor Aerodynamics , Rotor Blades

    Identification of rotor wake inflow finite-state models for flight dynamics simulations

    Gennaretti, Massimo / Gori, Riccardo / Serafini, Jacopo et al. | Springer Verlag | 2016
    Keywords: Rotor wake inflow , Helicopter dynamics modelling

      Identification of rotor wake inflow finite-state models for flight dynamics simulations

      Gennaretti, Massimo / Gori, Riccardo / Serafini, Jacopo et al. | Online Contents | 2016
      Keywords: Rotor wake inflow , Helicopter dynamics modelling

    Simulation of Aerodynamic Loads on Structural Elements of Landing Platform whilst Helicopter Takeoff and Landing

    Volkov, K. N. / Emel’yanov, V. N. / Yakovchuk, M. S. et al. | Springer Verlag | 2022
    Keywords: helicopter , rotor

    Rotor blade aerodynamic shape optimization based on high-efficient optimization method

    Wang, Qing / Zhao, Qijun | SAGE Publications | 2020
    Keywords: rotor , Helicopter

    Comparing 3D and 2D CFD for Mars Helicopter Ingenuity Rotor Performance Prediction

    Witold J.F. Koning / Brian G. Allan / Ethan A. Romander et al. | NTRS
    Keywords: Mars Helicopter , Rotor Performance

    Introduction to Special Section on Sensitivity Analysis for Rotorcraft Optimization

    AIAA | 2019
    Keywords: American Helicopter Society , Rotor Blades , Helicopter Rotor

    Numerical analysis of hub and fuselage drag breakdown of a helicopter configuration

    Renaud, T. / Pape, A. / Péron, S. | Springer Verlag | 2013
    Keywords: Helicopter , Rotor hub

      Numerical analysis of hub and fuselage drag breakdown of a helicopter configuration

      Renaud, T. / Le Pape, A. / Péron, S. | Online Contents | 2013
      Keywords: Helicopter , Rotor hub

    Controllability Analysis for Multirotor Helicopter Rotor Degradation and Failure

    Du, Guang-Xun / Quan, Quan / Yang, Binxian et al. | AIAA | 2015
    Keywords: Helicopter Rotor , Helicopter Controls

    Influence of a back-flow flap on the dynamic stall flow topology

    Wolf, C. C. / Gardner, A. D. / Merz, C. B. et al. | Springer Verlag | 2017
    Keywords: Helicopter rotor

      Influence of a back-flow flap on the dynamic stall flow topology

      Wolf, C. C. / Gardner, A. D. / Merz, C. B. et al. | Online Contents | 2017
      Keywords: Helicopter rotor

    Numerical Analysis of Hovering Main Rotor Aero-Acoustic Characteristics for Ice Detection

    Chen, Xi / Zhao, Qijun / Barakos, G. N. et al. | Springer Verlag | 2019
    Keywords: rotor , helicopter

      Numerical Analysis of Hovering Main Rotor Aero-Acoustic Characteristics for Ice Detection

      Chen, Xi / Zhao, Qijun / Barakos, G. N. et al. | Online Contents | 2019
      Keywords: rotor , helicopter

    Study on performance enhancement of electrically controlled rotor using 2/rev flap control

    Wang, C / Lu, Y | SAGE Publications | 2014
    Keywords: helicopter , Electrically controlled rotor

    Autorotation-Based Descent with Trajectory Optimization

    Patnala, Susmitha / Elango, Purnanand / Mohan, Ranjith et al. | AIAA | 2023
    Keywords: Helicopter Dynamics , Multi Rotor

    Active rotor control for helicopters: motivation and survey on higher harmonic control

    Kessler, Ch. | Springer Verlag | 2011
    Keywords: Active rotor control , Helicopter vibrations , Helicopter noise

    Exploratory flight investigation and analysis of structural loads encountered by a helicopter hingeless rotor system

    Ward, J. F. | NTRS | 1966
    Keywords: HELICOPTER , ROTOR , RIGID ROTOR HELICOPTER

    Experimental investigation on the performance degradation of helicopter rotor due to ice accretion

    Huang, Mingqi / Yuan, Honggang / Wang, Liangquan et al. | SAGE Publications | 2022
    Keywords: Helicopter rotor