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Turbine Tip Clearance Calculation and Structure Improvement for an Aero-engine

Author: FuZuo
Tutor: LiuTengXi;ZhongBinTao
School: Hunan University
Course: Mechanical Engineering
Keywords: Aero engine Tip Clearance calculation structure improvement
CLC: V231.9
Type: Master's thesis
Year: 2013
Downloads: 2
Quote: 0
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Abstract


Tip clearance is the radial clearance between the blade and casing. And its value is of prime importance to the Aero-engine on performance, reliability, and life. It is need to tip clearance control in the design of Aero-engine. Tip clearance numerical analysis is an important content of researching tip clearance control and improving performance of engine.In this paper, the simple method and finite element method are used in analyzing the tip clearance of a certain turbine. The result of the calculation is similar using the two methods, but using simple method can improve operation speed, shorten calculation time. It shows that the simple method for tip clearance calculation is feasible to be used for structural scheme design, it can also be used for structure improvement, finally, calculated the individual status of blade tip clearance, the rub between engine turbine blades and casing is analyzed. And some improvement were given.Research findings about the tip clearance of engine in the paper can be used as reference of control the tip clearance

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CLC: > Aviation, aerospace > Aviation > Aero-engine ( propulsion system ) > Engine theory > Engine structural mechanics
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