Determination of Vibration Properties and Reliable Frequency Estimation for Synchronous Vibrations Through Improved Blade Tip Timing Techniques Without a Once-per-Revolution Sensor [PDF]
SensorsSynchronous vibrations, which are caused by periodic excitations, can have a severe impact on the service life of impellers. Blade Tip Timing (BTT) is a promising technique for monitoring synchronous vibrations due to its non-intrusive nature and ability
Marios Sasakaros +3 more
doaj +2 more sources
Synchronous Vibration Measurements for Shrouded Blades Based on Fiber Optical Sensors with Lenses in a Steam Turbine [PDF]
Sensors, 2019 It is important to obtain accurate dynamic vibrations of steam turbine blades for safe operation. Strain gauge (SG) measurements cannot fully obtain vibrations of all blades and nodal diameter (ND) details.
Dechao Ye +6 more
doaj +2 more sources
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
doaj +2 more sources
Wavelet Transform-Based Damage Identification in Bladed Disks and Rotating Blades
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
doaj +2 more sources
Multi-Stage Robust Bayesian High-Resolution Identification of Asynchronous Blade Vibrations Using Blade Tip Timing [PDF]
EntropyBlade Tip Timing (BTT) is an essential non-contact technique for monitoring vibrations in rotating machinery, but its practical accuracy is often degraded by noise, undersampling, and spectral leakage.
Qinglei Zhang, Xiwen Chen
doaj +2 more sources
Capacitance Tip Timing Techniques in Gas Turbines [PDF]
, 2003 The vibration of turbomachinery blades is an important phenomenon to understand, observe and predict and is the reason for developing a tip timing measurement system.
Lawson, Craig P.
core +7 more sources
UEG Week 2016 Poster Presentations [PDF]
United European Gastroenterol J, 2016 United European Gastroenterology Journal, Volume 4, Issue S5, Page A157-A720, October 2016.
europepmc +2 more sources
Experimental Testing of Tip-Timing Methods used for Blade Vibration Measurement in the Aero-Engine [PDF]
, 2004 An important component within the jet engine in terms of vibration and high cycle fatigue (HCF) is the blade. This is the component where continuously higher demands on weight and loading are being made.
Grant, Kelly
core +7 more sources
Vibration analysis of compressor blade tip-rubbing [PDF]
, 2011 There has been a significant increase in air traffic volume, particularly over the past twenty years. In order to cope with this increase in demand, it has been necessary to increase the efficiency of aircraft engines.
Arzina, Dina
core +7 more sources
Journal of Electrical and Computer Engineering, Volume 2023, Issue 1, 2023., 2023 The development of a network termed microgrid (MG) has been motivated owing to augmentation in renewable energy source (RES) infiltration along with the utilization of enhanced power electronic technologies. Recently, more popularity has been gained by the hybrid MG (HMG).
Ginbar Ensermu +6 more
wiley +1 more source