Results 31 to 40 of about 2,760,319 (175)
Blade Vibration Measurements and Excitation Force Evaluation
, 2015 Tip timing blade vibration measuring systems have become nowadays common for monitoring blade vibrations, due to rather easy and non-intrusive installation of sensors. The data collected by the sensors must be heavily processed in order to get the vibration time histories of all blades at rated speed or during a run up or run down transient.
BACHSCHMID, NICOLO' +3 more
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Dynamic Strain Measurement of Rotor Blades in Helicopter Flight Using Fiber Bragg Grating Sensor
Sensors, 2023 Fiber Bragg grating (FBG) sensor has a lot of advantages over the resistance strain gauge and has been used in many applications. However, there are few applications of rotor blade dynamic measurement in helicopter flight.
Honglin Zhang +3 more
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Noncontact Vibrational Measurement Technology of Steam Turbine Blade.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1992 One of the important ways to increase reliability of the power plant is to measure the vibration of steam turbine blades in service operation. The measurement of the rotating blades is usually executed by strain gage, however, since the turbine has multiple stages, it is generally difficult to attach the strain gages to the rotating blades obtain ...
Kadoya, Yoshiki +5 more
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Sensors, 2019 Rotating stall limits the operating range and stability of the centrifugal compressor and has a significant impact on the lifetime of the impeller blade. This paper investigates the relationship between stall pressure wave and its induced non-synchronous
Xinwei Zhao +3 more
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A Novel Method of Impeller Blade Monitoring Using Shaft Vibration Signal Processing
Sensors, 2022 The monitoring of impeller blade vibrations is an important task in the diagnosis of turbomachinery, especially in terms of steam turbines. Early detection of potential faults is the key to avoid the risk of turbine unexpected outages and to minimize ...
Jindrich Liska +2 more
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Full-scale deformation measurements of a wind turbine rotor in comparison with aeroelastic simulations [PDF]
Wind Energy Science, 2020 The measurement of deformation and vibration of wind turbine rotor blades in field tests is a substantial part of the validation of aeroelastic codes.
S. Lehnhoff +2 more
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SensorsBlades are the core components of rotating machinery, and the blade vibration status directly impacts the working efficiency and safe operation of the equipment.
Zhenfang Fan +3 more
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Design and Calibration of a Tri-Directional Contact Force Measurement System
Applied Sciences, 2021 In low pressure turbine stages, adjacent blades are coupled to each other at their tip by covers, called shrouds. Three-dimensional periodic contact forces at shrouds strongly affect the blade vibration level as energy is dissipated by friction.
Rizwan Ahmed +2 more
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Blade Vibration on Centrifugal Compressors: Fundamental Considerations and Initial Measurements [PDF]
Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries, 1985 Blade vibration has to be considered in the design of high pressure ratio / high mass flow centrifugal compressors with increasing rotational speed values due to the reduced blade thickness. Results of a theoretical and experimental investigation concerning this problem are described.
Haupt, U., Bammert, K., Rautenberg, M.
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Accuracy Characterization of a MEMS Accelerometer for Vibration Monitoring in a Rotating Framework
Applied Sciences, 2023 Active and passive vibration control systems are of paramount importance in many engineering applications. If an external load excites a structure’s resonance and the damping is too low, detrimental events, such as crack initiation, growth and, in the ...
Andrea Rossi +3 more
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