Application research on asynchronous vibration measurement of rotating blades based on optical-fiber sensor

Yugui Zhang; Fajie Duan; Tao Li; Menglin Li; Tao Ouyang

doi:10.1117/12.863848

12 October 2010 Application research on asynchronous vibration measurement of rotating blades based on optical-fiber sensor

Yugui Zhang, Fajie Duan, Tao Li, Menglin Li, Tao Ouyang

Author Affiliations +

Proceedings Volume 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 76566N (2010) https://doi.org/10.1117/12.863848
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

Based on vibration measuring principle of blade tip-timing, fiber bundle sensor used as blade tip-timing is designed. "5+2" scheme of double-rate sampling is adopt to solve the under-sampled problem of asynchronous blade vibration. By using frequency identification, blade's real vibration information can be obtained. The method is applied on a model of aerial equipment to do simulation experiment whose result is similar to theoretical model, and the frequency measured is in accord with the result of strain gauge in general. Validity of measuring scheme is verified through the contrast result which also declares high practicable value of this identifying technique.

Citation Download Citation

Yugui Zhang, Fajie Duan, Tao Li, Menglin Li, and Tao Ouyang "Application research on asynchronous vibration measurement of rotating blades based on optical-fiber sensor", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76566N (12 October 2010); https://doi.org/10.1117/12.863848

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