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Joint excitation synchronization characteristics of fatigue test for offshore wind turbine blade
AIP Advances, 2018 In the case of the stiffness of offshore wind turbine blade is relatively large, the joint excitation device solves the problem of low accuracy of bending moment distribution, insufficient driving ability and long fatigue test period in single-point ...
Lei-an Zhang +3 more
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Enhancement to Non-Contacting Stress Measurement of Blade Vibration Frequency [PDF]
, 2011 A system for turbo machinery blade vibration has been developed that combines time-of-arrival sensors for blade vibration amplitude measurement and radar sensors for vibration frequency and mode identification. The enabling technology for this continuous
Jagodnik, John, Platt, Michael
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Human emotional response to steering wheel vibration in automobiles [PDF]
, 2013 This is the post-print (final draft post-refereeing) version of the final published paper that is available from the link below. Copyright @ 2013 Inderscience Enterprises Ltd.This study investigates what form of correlation may exist between measures of ...
Shabani, A +7 more
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The effect of blade aerodynamic modelling on the prediction of the blade airloads and the acoustic signature of the HART II rotor [PDF]
, 2009 As a rotorcraft descends or manoeuvres, the interactions which occur between the rotor blades and vortical structures within the rotor wake produce highly impulsive loads on the blades and with these a highly intrusive external noise.
Kelly, Mary E., Brown, R.E.
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Frontiers in Mechanical EngineeringFriction-induced vibration in the wiper system of passenger cars not only causes impaired visibility as a result of uneven water film distribution on the windscreen surface, but also leads to noise problems by transmitting vibrations as sound to the ...
Chiharu Tadokoro +8 more
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Flap-wise vibration frequency measurement of wind turbine blades through moiré pattern analysis
Measurement: EnergyAccurate vibration measurement of blades is essential for monitoring wind turbines to reduce downtime and ensure operational safety in wind farms. Although imaging-based methods such as digital image correlation and photogrammetry have been applied to ...
Yi-Hsiang Liao, Lijuan Wang, Yong Yan
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VIBRATION MEASUREMENT METHOD OF WIND TURBINE BLADE BASED ON BINOCULAR PHOTOGRAM METRY
Jixie qiangdu, 2020 binocular photogrammetry vibration measurement method for considering the radial and tangential distortion parameters calibration by using the Levenberg-Marquardt algorithm based nonlinear optimization was proposed.
YAKUP AhMat +4 more
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High-order high-cycle fatigue design of centrifugal impeller under unsteady flow field excitation
Jixie qiangduObjectiveThe study aims to analyze the causes of blade trailing edge fracture in a centrifugal impeller and propose effective improvement measures to enhance its high-cycle fatigue (HCF) life.MethodsFirstly, unsteady flow field analysis was employed to ...
FENG Yajuan +4 more
doaj
AerospaceIn this study, the aerodynamic performance of a cambered wind turbine airfoil with a partially flexible membrane material on its suction surface was examined experimentally across various angles of attack and Reynolds numbers.
Kemal Koca, Mustafa Serdar Genç
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Noncontact Measurement of Rotating Blade Vibrations
Noncontact Measurement of Rotating Blade VibrationsA new noncontact measuring system for rotating blades vibrations of fans, compressors, and turbines has been developed and successfully applied in the research and development project of turbofan engines and industrial gas turbines. It is a powerful measurement system which can simultaneously measure the vibration of all blades without the need of such
openaire +1 more source