Laser triangulation measurement of blade oscillation in a transonic compressor cascade

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F23%3A00573642" target="_blank" >RIV/61388998:_____/23:00573642 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24220/23:00011209
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1742-6596/2511/1/012010/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/2511/1/012010/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/2511/1/012010" target="_blank" >10.1088/1742-6596/2511/1/012010</a>

Result language
angličtina
Original language name
Laser triangulation measurement of blade oscillation in a transonic compressor cascade
Original language description
The paper describes a method for optical measurement of oscillation of blades in a linear cascade designed for flutter research. The method uses laser triangulation, which measures the distance between the sensor and the oscillation object. The distance can be recalculated to angular displacement of the blade. However, the relation is nonlinear due to the curvature of the blade. The nonlinear dependence between the distance and angular displacement is derived and quantified analytically. The paper further analyzes the influence of light refraction in the optical window, surface quality and sensor inclination. A procedure for the nonlinear calibration is proposed and used during wind tunnel measurements in a blade cascade with forced oscillation of the middle blade.
Czech name
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Czech description
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Project
<a href="/en/project/LTAUSA19036" target="_blank" >LTAUSA19036: Advanced experimental research on synchronous and non-synchronous blade vibration</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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