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Compressor Blade Vibration Measurements Using Blade Image Velocimetry
Journal of Vibration and Acoustics, 2015This paper discusses the application of a novel vibration measurement technique, termed blade image velocimetry (BIV), to a high-speed axial compressor. Measurements of compressor blade vibration can be difficult to obtain and are critical to aeromechanical design validation.
Paul L. Mikrut +2 more
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A noninterference blade vibration measurement system for gas turbineengines
23rd Joint Propulsion Conference, 1987A noninterfering blade-vibration measurement system has been demonstrated in tests of a gas turbine firststage fan. Conceptual design of the system, including its theory, design of case mounted probes, and data acquisition and signal-processing hardware, was done in a previous effort.
William B. Watkins, Ray M. Chi
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Laser Vibrometry Measurements of Rotating Blade Vibrations
Journal of Engineering for Gas Turbines and Power, 1995One of the most important design factors in modern turbomachinery is the vibration of turbomachinery blading. There is a need for developing an in-service, noncontacting, noninterfering method for the measurement and monitoring of gas turbine, jet engine, and steam turbine blade vibrations and stresses.
A. K. Reinhardt +2 more
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Noncontact vibration measurements on compressor rotor blades
Measurement Science and Technology, 2000In turbine engine development, rotor blade vibration measurements are made to ensure the blades are sufficiently durable in later service. These measurements are conventionally taken using strain gauges or the frequency modulated grid. In recent years, a noncontact method of blade vibration measurement has become an increasingly accepted, low-cost ...
M Zielinski, G Ziller
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Vibrations of Turbine Blades measured by Means of a Laser
Nature, 1969A RELIABLE method of measuring the vibrations of the blades of a turbine while in motion is needed1. A non-contact method is clearly preferable to one involving transducers (such as strain gauges coupled to slip-rings or miniature transmitters). We have been investigating the possibility of using a laser Doppler system for such a measurement.
Q. V. DAVIS, W. K. KULCZYK
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Nonintrusive turbomachine blade vibration measurement system
Mechanical Systems and Signal Processing, 2007Conventional measurement systems for monitoring blade vibration generally use strain gauges attached to the surface of blades. Alternative noncontact measurement techniques are investigated in order to minimise the adverse effects of this method. In this paper, a new method based on groups of regularly spaced optical sensors and on apposite treatments ...
Beauseroy, Pierre, Lengellé, Régis
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Non-Contact High-Frequency Vibration Measurement Using Blade Tip Vibration Acceleration
2024 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)Xuefeng Chen, Baijie Qiao
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Research on the nonintrusive measurement of the turbine blade vibration
SPIE Proceedings, 2008It's one of the important ways to monitor the change of dynamic characteristic of turbine blades for ensuring safety operation of turbine unit. Traditional measurement systems for monitoring blade vibration generally use strain gauges attached to the surface of turbine blades, each strain gauge gives out an analogue signal related to blade deformation,
Shi hai Zhang, Lu-ping Li, Hong-de Rao
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BLADE-TIP TIMING MEASUREMENT OF SYNCHRONOUS VIBRATIONS OF ROTATING BLADED ASSEMBLIES
Mechanical Systems and Signal Processing, 2002Blade-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 +3 more
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Interferometric Sensor System for Blade Vibration Measurements in Turbomachine Applications
IEEE Transactions on Instrumentation and Measurement, 2013In order to improve the safety, lifetime, and energy efficiency of turbomachines, the dynamic behavior of the rotor has to be analyzed. Blade vibrations have to be monitored during operation to optimize the rotor design and to validate numerical models.
Florian Dreier +4 more
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