Results 51 to 60 of about 4,321 (293)
Shock and Vibration, 2019 The identification of operational modal parameters of a wind turbine blade is fundamental for online damage detection. In this paper, we use binocular photogrammetry technology instead of traditional contact sensors to measure the vibration of blade and ...
Wenyun Wang, Xuejun Li, Anhua Chen
doaj +1 more source
Uncovering the Root Causes of Stall Flutter in a Wide Chord Fan Blisk
International Journal of Turbomachinery, Propulsion and Power, 2022 Flutter was encountered at part speeds in a scaled wide chord fan blisk designed for a civil aeroengine during a rig test when the fan bypass flow was throttled toward its stall boundary.
Huang Huang, Mingming Yang, Dingxi Wang
doaj +1 more source
Advanced Functional Materials, EarlyView.Top‐down organic pillaring expands the interlayer spacing of bulk‐sized MoS2 particles while preserving the bulk morphology. Operando X‐ray diffraction and electrochemical dilatometry show that MoS2‐bulk undergoes solvent co‐intercalation in diglyme electrolyte, causing large structural expansion, while pillared, expanded MoS2 suppresses solvent uptake
Jaehoon Choi +8 more
wiley +1 more source
3D unsteady flow in oscillating compressor cascade [PDF]
, 2004 An experimental and computational study has been carried out to enhance current understanding of three dimensional (3D) cascade aeroelastic mechanisms. 3D unsteady pressure data produced during executing this project is the first-of-its-kind, which can ...
Yang, Hui
core
Experimental and numerical investigation of turbomachinery blade vibration [PDF]
, 2020 Despite constant research on Blade Tip-Timing (BTT) for decades, the major limitation of this turbomachinery blade vibration measurement technique in terms of insufficient data sampling is still not overcome.
Heller, Daniel
core +1 more source
Non-contact identification of rotating blade vibration
Mechanical Engineering Journal, 2015 This paper presents a non-contact measurement and diagnostic method for the parametric identification of vibrations of rotating engine blades, based on blade tip-timing (BTT) measured by optical sensors.
Peng WANG +5 more
doaj +1 more source
High-Precision Extraction Method for Blade Tip-Timing Signal with Eddy Current Sensor
International Journal of Rotating Machinery, 2020 Online monitoring of high-speed rotating blades has always been a hot topic. Of the various methods, the blade tip timing (BTT) technique, based on eddy current sensors, is considered to be the most promising.
Ji-wang Zhang, Ke-qin Ding, Guang Chen
doaj +1 more source
Advanced Materials, EarlyView.This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley +1 more source
, 2010 This paper presents a summary of a recent research program, focusing on a new method of non contact gas turbine blade vibration measurement using casing pressure and vibration signals.
Forbes, Gareth Llewellyn +1 more
core +1 more source
Advanced Materials, EarlyView.Flexible neutral Zn‐air batteries achieving a remarkable 3000‐cycle lifespan and withstanding 1000 bending cycles are reported. This performance is realized by employing a 3D physically cross‐linked neutral hydrogel electrolyte that integrates high adhesion, self‐healing, O2 permeability, and CO2 tolerance to resolve critical stability challenges ...
Zhenyu Sun +3 more
wiley +1 more source