Results 11 to 20 of about 97,027 (259)

Study on Vibration-Transmission-Path Identification Method for Hydropower Houses Based on CEEMDAN-SVD-TE

open access: yesApplied Sciences, 2022
The analysis of the vibration-transmission path is one of the keys to the vibration control and safety monitoring of a hydropower house, and the vibration source of the hydropower house is complex, making it more difficult to analyze the vibration ...
Jianwei Zhang   +4 more
doaj   +1 more source

A Method of Vibration Measurement with the Triboelectric Sensor during Geo-Energy Drilling

open access: yesEnergies, 2023
In the process of geo-energy drilling, the real-time vibration measurement of drill pipes is of significance for an understanding of the downhole conditions and the properties of rock.
Rui Li, He Huang, Chuan Wu
doaj   +1 more source

Decoupling of Vibration and Temperature Signals of Fiber Bragg Grating Sensor

open access: yesShanghai Jiaotong Daxue xuebao, 2022
This paper uses a single fiber bragg grating (FBG) sensor to implement an experiment to measure vibration and temperature signals at the same time, and proposes a MATLAB-based decoupling method to separate vibration and temperature signals.
LI Han, ZHANG Botao, WANG Junjie, SUN Yunda, GONG Shengjie
doaj   +1 more source

A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing

open access: yesShock and Vibration, 2021
During the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real-time vibration monitoring of the blades is of great significance to the stable operation and state-based ...
Haonan Guo   +6 more
doaj   +1 more source

Study on applicability of a contactless measurement method for vibration stress using laser displacement sensors

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This study presented a contactless method to measure vibration-induced stress (vibration stress) using multiple laser displacement sensors and the applicability of the method was investigated using beam theory and vibration test.
Akira MAEKAWA   +3 more
doaj   +1 more source

Measurement of a Vibration on a Robotic Vehicle

open access: yesSensors, 2022
This article deals with the design and construction of a robotic vehicle. The first part of the paper focuses on the selection of suitable variants for the robotic vehicle arrangement, i.e., frame, electric motors with gearboxes, wheels, steering and accumulators. Based on the selection of individual components, the robotic vehicle was built.
Frantisek Klimenda   +2 more
openaire   +3 more sources

Magnetic Levitation Rail Locomotive Vibration on-line Monitoring

open access: yesJournal of Harbin University of Science and Technology, 2018
In order to achieve underground metro flatness measurement,a maglev subway vibration tester was designed. The sensitivity of the photoelectric displacement sensor was calculated. Oscillator kinetic equation was derived. The equation derived is linear ...
JIANG Dong   +3 more
doaj   +1 more source

Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study

open access: yesShock and Vibration, 2019
The vibration measurement location is the basis for effective monitoring of aeroengine vibration conditions. Measurement locations need to reflect the vibration of the rotor sufficiently, while complex structures of the aeroengine bring many excitation ...
Lanlan Hou, Shuqian Cao
doaj   +1 more source

Measuring traffic induced ground vibration using smartphone sensors for a first hand structural health monitoring

open access: yesScientific African, 2021
This study presents the traffic induced ground vibration acquisition capabilities of smartphone sensors. Ground vibration is one of prime interests to geotechnical and geological engineering.
Henok Marie Shiferaw
doaj   +1 more source

Review of research on tip-timing and tip clearance measurement technology

open access: yesJournal of Hebei University of Science and Technology, 2021
Turbine blades will fail due to fatigue fracture caused by vibration at high-speed rotation,resulting in damage of rotating machinery.Blade tip-timing measurement technology is the most promising non-contact blade vibration real-time monitoring method at
Liang ZHANG   +3 more
doaj   +1 more source

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