Results 31 to 40 of about 337,376 (283)
Vibrations of a Rotating Blade
The Journal of the Japan Society of Aeronautical Engineering, 1956 The bending vibrations of a rotating blade were investigated by some authors. But, as in the aerofoil seetion the centre of gravity and the centre of twist do not coincide the coupling of bending and twisting vibrations occurs necessarily.In the present investigation the frequencies of the above mentioned coupled vibrations of a rotating blade which ...
openaire +3 more sources
Energies, 2018 It is of great value to study the impact of abnormal blade installation angle on the inducement mechanism of rotating stall to achieve the active control of rotating stall in an axial fan.
Lei Zhang +5 more
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Comparison of Various Turbulence Models in Rotating Machinery Blade‐to‐Blade Passages [PDF]
International Journal of Rotating Machinery, 1999 Numerical calculations on four blade passages are done using Q3D Navier‐Stokes solver with a simple mixing length turbulence model and two more advanced transport‐equation approaches. Mixing length is simple and cheap but crude, while more sophisticated transport approaches are more physical but more expensive.
E. Y. K. Ng, S. T. Tan
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International Journal of Naval Architecture and Ocean Engineering, 2022 The hydrodynamic damping characteristics of elastic rotating propeller blades are investigated theoretically and experimentally. Firstly, the modal hydrodynamic damping ratio of propeller blade rotating in water is theoretically predicted based on the ...
Hongyang Chen +3 more
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Blade Crack Diagnosis Based on Blade Tip Timing and Convolution Neural Networks
Applied Sciences, 2023 The diagnosis of blade crack faults is critical to ensuring the safety of turbomachinery. Blade tip timing (BTT) is a non-contact vibration displacement measurement technique, which has been extensively studied for blade vibration condition monitoring ...
Guangya Zhu +5 more
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Dynamic analysis of cracked rotating blade using cracked beam element
Results in Physics, 2020 In this paper, the dynamic model of a pre-twisted cracked rotating blade is established using self-programed beam element (CBE) and its nonlinear characteristics are analyzed.
Chenguang Zhao +4 more
doaj +1 more source
Vibration Test of Blade Disc of High Pressure Turbine in High Rotating Speed
Hangkong gongcheng jinzhan, 2021 In the high-speed rotating state, the experimental study on the vibration characteristics of high-pressure turbine rotor blade and the vibration reduction effect of flange damping device is beneficial to the later design iteration and obtain the real ...
LUO Li, HUANG Dayong
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Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
wiley +1 more source
The influence of Blade Chord on the Aerodynamics and Performance of Vertical Axis Wind Turbines [PDF]
, 2013 The climate change due to emissions from the combustion of fossil fuel to meet the ever increasing energy demands of the growing world population has roused the attention of governments and individuals to protect the environment.
Eboibi, Okeoghene
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Advanced Engineering Materials, EarlyView.Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt +5 more
wiley +1 more source