Paper Title:
Key Technique of Tip Clearance Measurement for Rotational Blades
  Abstract

It’s an important problem for power industry; energy industry, aviation and shipping to real-time measure the rotating blades’ tip clearance of engine. The conventional measurement techniques have different limitations. To achieve applied level for tip clearance measurement technique, according to the use request and application environment of tip clearance sensor, a new fiber-optic sensor was put forward to measure the blade tip radial clearance of engine in non-contact mode. The sensor was consist of single-bundle transmitting fiber in the center for laser beam delivery and three groups receiving fibers located in all around for collecting the scattered light. The sensor can not only eliminate the effect to measurement results of light source fluctuation and reflectivity variety of tip surface, but also reduce the effect of angle between the tip surface and sensor end face to measurement results. From the measurement results obtained from sensor on different clearance points, it proves that the sensor measuring system has well feasibility and reliability in blades tip clearance detection.

  Info
Periodical
Key Engineering Materials (Volumes 381-382)
Edited by
Wei Gao, Yasuhiro Takaya, Yongsheng Gao and Michael Krystek
Pages
427-430
DOI
10.4028/www.scientific.net/KEM.381-382.427
Citation
Y. Z. Ma, F.J. Duan, Y. Z. Zheng, C. S. Ai, S.H. Ye, "Key Technique of Tip Clearance Measurement for Rotational Blades", Key Engineering Materials, Vols. 381-382, pp. 427-430, 2008
Online since
June 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ming Chu Kong, Wing Bun Lee, Chi Fai Cheung, Suet To
Abstract:The formation of tool marks in single-point diamond turning is a fundamental study of the effect of materials swelling and recovery on...
544
Authors: Chang Li Liu, X.L. Zhang, L. Cui, J. Jiang, J.R. Zheng
Abstract:In this paper, the dynamic model of rotor bearing system with rub-impact and oil whirl is formulated. Continuation-shooting method for the...
517
Authors: Bing Hui Jia, Xiao Dong Zhang
Abstract:The tip clearance flow of axial turbomachines is important for their aerodynamic and maneuver performance. And the tip clearance gap leakage...
2469
Authors: W.F. Fan, Zhong Mei Zhang
II. Material Forming Science and Technology
Abstract:The hardening layer of blanking boundary could enhance structure intensity and wear resistance of blanking work piece evidently. Therefore it...
365
Authors: J.H. Li, Zhong Mei Zhang
II. Material Forming Science and Technology
Abstract:The plastic analysis software DEFORM was used to simulate the blanking process of metal plastic without burr. Based on theory of the rigid...
377