Paper Title:
Study on Effect of Rotor Vibration on Tip Clearance Variation and Fast Active Control of Tip Clearance
  Abstract

The tip clearance flow of axial turbomachines is important for their aerodynamic and maneuver performance. And the tip clearance gap leakage flow is of continuing concern in reducing efficiency losses that occur within turbines. In order to gain significant reductions in emissions and specific fuel consumption as well as dramatic improvements in operating efficiency and increased service life of aero-engine, variation mechanism of blade tip clearance was analyzed and the equation of dynamic clearance was shown firstly, then the effect of rotor vibration in clearance variation which include flight loads and engine loads was studied in this paper; based on the dynamic measurements of blade tip clearance, a method that ensure tip clearance at optimal state in given mission profile through active rotor vibration control and active tip clearance control was presented. Besides, fuzzy control theory was used to solve the high nonlinear variation of tip clearance. The analysis result shows that this technique is useful.

  Info
Periodical
Advanced Materials Research (Volumes 139-141)
Edited by
Liangchi Zhang, Chunliang Zhang and Tielin Shi
Pages
2469-2472
DOI
10.4028/www.scientific.net/AMR.139-141.2469
Citation
B. H. Jia, X. D. Zhang, "Study on Effect of Rotor Vibration on Tip Clearance Variation and Fast Active Control of Tip Clearance", Advanced Materials Research, Vols. 139-141, pp. 2469-2472, 2010
Online since
October 2010
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: Zi Xu Liu, Guang Hui Zhang, Bo Wang, Xue Wei Zhang, Tian Biao Yu, Wan Shan Wang
Chapter 8: New Energy Materials
Abstract:In the article, blade element momentum theory is used for calculated aerodynamic load of blade under the different wind velocities. 3D model...
1790
Authors: Wei Qiang Zhao, Yong Xian Liu, Mo Wu Lu
Chapter 3: Computer Aided Design, Modeling and Analysis
Abstract:This paper introduces a FEA method for vibration characteristics analysis of an aero-engine shrouded turbine blade and makes an actual modal...
443
Authors: Ling Hua Xiong, Zhe Si Zhang
Chapter 5: Control and Automation Technology, Design, Modeling and Simulation
Abstract:Spherical hinge as a kinematic pair is widely used in mechanical engineering, but clearance inevitably exists in it and reduces the run...
803
Authors: Hong Zhou Huang, Jun Lan Li, Yun Qiang Yang, Shao Ze Yan
Chapter 1: Engineering Technologies in Designing of Machines and Equipments
Abstract:Space deployable mechanisms have been widely employed in aeronautic industry, and the dynamic performance of the space deployable mechanisms...
306