Results 91 to 100 of about 77,768 (302)

Research of the Vibration Source Tracking in Phase-Sensitive Optical Time-Domain Reflectometry Signals Based by Image Processing Method

open access: yesAlgorithms, 2018
This paper aims to improve the source tracking efficiency of distributed vibration signals generated by phase-sensitive optical time-domain reflectometry (Φ-OTDR).
Yanzhu Hu, Song Wang, Xinbo Ai
doaj   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

open access: yesAdvanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge   +8 more
wiley   +1 more source

Fault Diagnosis of Motor Vibration Signals by Fusion of Spatiotemporal Features

open access: yes, 2022
This paper constructs a spatiotemporal feature fusion network (STNet) to enhance the influence of spatiotemporal features of signals on the diagnostic performance during motor fault diagnosis.
Fengxia Xu   +3 more
core   +1 more source

Detection of Deterioration of Three-phase Induction Motor using Vibration Signals

open access: yesMeasurement Science Review, 2019
Nowadays detection of deterioration of electrical motors is an important topic of research. Vibration signals often carry diagnostic information of a motor.
Glowacz Adam   +9 more
doaj   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

open access: yesAdvanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon   +3 more
wiley   +1 more source

A Blind Source Separation Method for Convolved Mixtures by Non-Stationary Vibration Signals [PDF]

open access: yes, 2013
A simple and feasible of BSS method to separate the convolution mixture of non-stationary vibration signals is present in this paper. The method is carried out by means of two iterative procedures: The first procedure is to estimate the coefficients of ...
Ye Hongxian, Hu Xiaoping, Li Wenchang
core   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

A Blind Denoising Method for Noisy Rotating Machinery Vibration Signals

open access: yes
The quality of signals plays a critical role in the diagnosis of faults in rotating machinery. It significantly impacts the accuracy of fault Identification and the precision of predicting the remaining useful life.
Karimi H. R., Yang D., Ma D.
core   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

Assessment of the state of technical objects by the parameters of vibration signals and their trends [PDF]

open access: yes, 2023
The state of observed technical objects is determined by parameters and characteristics. When analyzing the vibration state of a mechanism or unit, the primary characteristics are the vibration signals recorded on its bearings or housings. As a result of
Brancevich, P., Li Yibin
core  

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