Results 81 to 90 of about 131,767 (349)
Study on titanium fire suppression technology for aero-engine uncontained failures
Scientific ReportsIn aero-engine containment tests, titanium alloy blades exploding and flying off generate a large amount of titanium fire, affecting the capture and recording of the blade flyoff process.
Tianxi Wang +7 more
doaj +1 more source
Adaptive Multiscale Symbolic-Dynamics Entropy for Condition Monitoring of Rotating Machinery
Entropy, 2019 Vibration data from rotating machinery working in different conditions display different properties in spatial and temporal scales. As a result, insights into spatial- and temporal-scale structures of vibration data of rotating machinery are fundamental ...
Chunhong Dou, Jinshan Lin
doaj +1 more source
Self-tuning routine alarm analysis of vibration signals in steam turbine generators [PDF]
, 2012 This paper presents a self-tuning framework for knowledge-based diagnosis of routine alarms in steam turbine generators. The techniques provide a novel basis for initialising and updating time series feature extraction parameters used in the automated ...
Campbell, Graeme +3 more
core +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
The Recovery of Weak Impulsive Signals Based on Stochastic Resonance and Moving Least Squares Fitting [PDF]
, 2014 In this paper a stochastic resonance (SR)-based method for recovering weak impulsive signals is developed for quantitative diagnosis of faults in rotating machinery.
Fengshou Gu +19 more
core +2 more sources
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
Precision optical angular position marker system for rotating machinery [PDF]
An optical system is described which generates one or more markers of the angular shaft position of rotating machinery. The system consists of a light source, an optical cable, a machinery mounted lens assembly, a light detector, and a signal conditioner.
Barranger, J. P.
core +1 more source
Advanced Engineering Materials, EarlyView.This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay +3 more
wiley +1 more source
Why have hydrostatic bearings been avoided as a stabilizing element for rotating machines [PDF]
The advantages are discussed of hydrostatic, high pressure bearings as providers of higher margin of stability to the rotor/bearing systems. It is apparent that deliberate use of hydrostatic bearing high pressure lubricated (any gas or liquid) can easily
Bently, D. E., Muszynska, A.
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Improved design of item in high speed rotating machinery [PDF]
, 1969 Greater centrifugal radial growth of the preimpeller hub with respect to the impeller and nut at operating speed alleviates clamping and alignment problems in high speed rotating machinery.
Dietrich, J. A.
core +1 more source