Results 221 to 230 of about 4,892 (274)

Lithic Miniaturization Provides a Signature of an MIS4-3 Southern Dispersal of Homo sapiens. [PDF]

Evol Anthropol
Shipton C.
europepmc   +1 more source

Protocol to interrogate the role of creeping fat and mechanical tension in Crohn's disease using a surgical mouse model of intestinal fibrosis. [PDF]

STAR Protoc
Suh EJ, Pham B, Bauer-Rowe KE, Kim A, Liang NE, Park JY, Foster DS, Norton JA, Delitto D, Longaker MT, Hyun JS.   +10 more
europepmc   +1 more source

Vision-Based Measurement of Breathing Deformation in Wind Turbine Blade Fatigue Test. [PDF]

J Imaging
Wei X, Li C, Wang Z, Hai Z, Wang J, Zhang L.   +5 more
europepmc   +1 more source

Protocol for quantifying the thickness and puncture resistance properties of solitary bee cocoons using Osmia lignaria as a model. [PDF]

STAR Protoc
Wasserman O, Wootton MR, Fairbanks S, Bell BE, Williams MF, Jones JA.   +5 more
europepmc   +1 more source

BLADE-TIP TIMING MEASUREMENT OF SYNCHRONOUS VIBRATIONS OF ROTATING BLADED ASSEMBLIES

Mechanical Systems and Signal Processing, 2002
Blade-tip timing (BTT) is a promising method for the detection, measurement and analysis of blade vibrations in rotating bladed assemblies. However, the intricacies of the method when applied to real rotating structures undergoing synchronous (Engine Ordered) vibrations are not yet fully understood.
G. DIMITRIADIS, I.B. CARRINGTON, J.R. WRIGHT, J.E. COOPER   +3 more
openaire   +2 more sources

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Blade Crack Detection using Blade Tip Timing

IEEE Transactions on Instrumentation and Measurement, 2021
The harsh working environment of compressor threats the integrality of bladed disk. Crack is one of the most fatal faults of rotating blades. Detecting the crack of blades at early stage could ensure the safe operation of gas turbine and save economic costs.
Shuming Wu, Zengkun Wang, Haoqi Li, Zhibo Yang 0001, Shaohua Tian, Ruqiang Yan 0001, Shibin Wang, Xuefeng Chen 0002   +7 more
openaire   +1 more source

Validating Blade Vibration Amplitudes from Blade Tip-Timing Data Analysis

, 2004
Blade Tip-Timing (BTT) is a method for the measurement of blade vibration in rotating bladed assemblies such as those found in turbomachinery. BTT data needs to be analysed by specially formulated methods, to yield the vibration frequencies and amplitudes.
Gallego-Garrido, Jon, Dimitriadis, Grigorios   +1 more
openaire   +2 more sources

Improving the blade tip clearance measurement method based on blade tip timing: Accounting for rotor speed variations and non-uniform blade-by-blade tip clearance

Measurement: Journal of the International Measurement Confederation
Xiaolei Guo, Huoxing Liu, Zhihong Zhou
exaly   +2 more sources

Constant speed tip deflection determination using the instantaneous phase of blade tip timing data [PDF]

Mechanical Systems and Signal Processing, 2021
Blade Tip Timing (BTT) is a non-intrusive measurement technique that can be used to estimate the vibration characteristics of rotor blades during turbomachine operation.
P Stephan Heyns, Abrie Oberholster
exaly   +2 more sources

On the development of a magnetoresistive sensor for blade tip timing and blade tip clearance measurement systems

AIP Conference Proceedings, 2014
A simultaneous blade tip timing (BTT) and blade tip clearance (BTC) measurement system enables the determination of turbomachinery blade vibrations and ensures the monitoring of the existing running gaps between the blade tip and the casing. This contactless instrumentation presents several advantages compared to the well-known telemetry system with ...
R. Tomassini, G. Rossi, J.-F. Brouckaert
openaire   +4 more sources