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Rotating blade propellers in prospective aviation technology [PDF]
E3S Web of Conferences, 2023 The study proposes the use of a new generation of aircraft based on the use of cylindrical rotating blade propellers as a means of transportation. The results of research and development work carried out on several dimensions of cylindrical rotating ...
Prokhorov Viktor +4 more
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Journal of Low Frequency Noise Vibration and Active Control, 2021 Rotating blade is one of the most important components for turbomachinery. Blade crack is one of the most common and dangerous failure modes for rotating blade. Therefore, the fault mechanism and feature extraction of blade crack are vital for the safety
Laihao Yang, Meng Ma, Shuming Wu
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Wavelet Transform-Based Damage Identification in Bladed Disks and Rotating Blades [PDF]
Shock and Vibration, 2018 Blade vibration and blade clearance are effective diagnostic features for the identification of blade damage in rotating machines. Blade tip-timing (BTT) is a noncontact method that is often used to monitor the vibration and clearance of blades in a ...
P. Rajendran +3 more
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Determination of angle of attack for rotating blades [PDF]
INCAS Bulletin, 2012 For a rotating blade the flow passing by a blade section is bended due to the rotation and the local flow field is influenced by the bound circulation on the blade. As a further complication, 3-D effects from tip and root vortices do a precise definition
Alexandru DUMITRACHE +3 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.
Jin Zeng
exaly +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.
Songling Wang
exaly +3 more sources
Impact of the Closed, Semi-Opened, and Combined Contra-Rotating Stages on Volume Loss Characteristics [PDF]
Журнал інженерних наук, 2022 The article is devoted to studying the contra-rotating stages with different impellers and blade discs. Determining the reduction of volumetric losses by modeling the contra-rotating stages in the software package ANSYS CFX.
Kulikov O. +4 more
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Frontiers in Physics, 2023 Introduction: In the present paper, experiments for a contra-rotating axial fan have been conducted to investigate the influences of the fan parameters including axial distance, blade number, blade pattern and blade thickness on the performance and noise
Yanjie Zhao +4 more
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Analysis and Calibration of Blade Tip-Timing Vibration Measurement Under Variable Rotating Speeds
IEEE Access, 2021 Blade tip timing (BTT) vibration measurement is a promising on-line blade monitoring method, but various uncertainties bring great challenge in engineering applications. Most existing works are based on the assumption of constant rotating speeds. However,
Zhongsheng Chen +3 more
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Review of research on tip-timing and tip clearance measurement technology
Journal of Hebei University of Science and Technology, 2021 Turbine blades will fail due to fatigue fracture caused by vibration at high-speed rotation,resulting in damage of rotating machinery.Blade tip-timing measurement technology is the most promising non-contact blade vibration real-time monitoring method at
Liang ZHANG +3 more
doaj +1 more source