International Journal of Rotating Machinery, 2007 Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies undergoing two simultaneous synchronous resonances
J. Gallego-Garrido +3 more
doaj +1 more source
Thermal effect of plastic dissipation at the crack tip on the stress intensity factor under cyclic loading [PDF]
, 2011 The authors acknowledge Arts et Métiers ParisTech and Fondation Arts et Métiers for the financial support of Paul C. Paris’ stay at LAMEFIP in 2009. The encouragement of Prof. Ivan Iordanoff, Director of LAMEFIP, is acknowledged with thanks.
PARIS, Paul C. +8 more
core +1 more source
The tipping times in an Arctic sea ice system under influence of extreme events [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2020 <p>In light of the rapid recent retreat of Arctic sea ice, the extreme weather events triggering the variability in Arctic ice cover has drawn increasing attention. A non-Gaussian &#945;-stable L&#233;vy process is thought to be an appropriate model to describe such extreme events.
Fang Yang +4 more
openaire +4 more sources
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
A Study on the High Load Operation of a Natural Gas-Diesel Dual-Fuel Engine
Frontiers in Mechanical Engineering, 2020 Diesel fueled compression ignition engines are widely used in power generation and freight transport owing to their high fuel conversion efficiency and ability to operate reliably for long periods of time at high loads.
Shouvik Dev, Hongsheng Guo, Brian Liko
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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
doaj +1 more source
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
The Measurement of Turbomachinery Blade Vibration Through Tip Timing With Capacitance Tip Clearance Probes [PDF]
, 2020 Turbomachinery blade vibrations can cause High Cycle Fatigue, which reduces blade life. In order to observe this vibration a non-intrusive monitoring system is sought.
Paul C Ivey +2 more
core
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Determining Rotor Blade Multi-Mode Vibration Components
Applied SciencesThe new algorithm presented in this paper determines the multi-mode blade vibration components when the time of blade arrival is known from an experiment.
Jerzy Manerowski +3 more
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