Blade vibration event identification method based on time delay characteristics of blade tip timing data

The invention discloses a blade vibration event identification method based on a blade tip timing data time delay characteristic, which realizes accurate identification of a blade vibration event under the condition of a single sensor, and comprises the following steps: S1, installing a single blade...

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Main Authors NIU GUANGYUE, LI FAFU, JIANG JIAJIA, QIN HAOWEI, DUAN FAJIE, GUO PEIXUAN, LIU HAO, FU XIAO
Format Patent
LanguageChinese
English
Published 31.05.2024
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Abstract The invention discloses a blade vibration event identification method based on a blade tip timing data time delay characteristic, which realizes accurate identification of a blade vibration event under the condition of a single sensor, and comprises the following steps: S1, installing a single blade tip timing sensor at the top of a certain blade on a certain rotating blade disc; s2, on the basis of the blade tip timing principle, the sampling time ti when each blade in each circle rotates to a blade tip timing sensor is measured, and when the blades are subjected to the action of external exciting force, displacement response of generated single-degree-of-freedom coupling-free vibration is obtained; s3, measuring the vibration displacement of each circle of each blade based on the step S2, and adding a rectangular window with the length of n to the vibration displacement; the vibration displacement, measured in the jth circle, of the ith blade is expressed as yij; s4, constructing a class reconstruction attr
AbstractList The invention discloses a blade vibration event identification method based on a blade tip timing data time delay characteristic, which realizes accurate identification of a blade vibration event under the condition of a single sensor, and comprises the following steps: S1, installing a single blade tip timing sensor at the top of a certain blade on a certain rotating blade disc; s2, on the basis of the blade tip timing principle, the sampling time ti when each blade in each circle rotates to a blade tip timing sensor is measured, and when the blades are subjected to the action of external exciting force, displacement response of generated single-degree-of-freedom coupling-free vibration is obtained; s3, measuring the vibration displacement of each circle of each blade based on the step S2, and adding a rectangular window with the length of n to the vibration displacement; the vibration displacement, measured in the jth circle, of the ith blade is expressed as yij; s4, constructing a class reconstruction attr
Author JIANG JIAJIA
LI FAFU
QIN HAOWEI
LIU HAO
NIU GUANGYUE
DUAN FAJIE
FU XIAO
GUO PEIXUAN
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– fullname: GUO PEIXUAN
– fullname: LIU HAO
– fullname: FU XIAO
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DocumentTitleAlternate 一种基于叶尖定时数据时延特性的叶片振动事件识别方法
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Snippet The invention discloses a blade vibration event identification method based on a blade tip timing data time delay characteristic, which realizes accurate...
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SubjectTerms CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
MEASURING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
Title Blade vibration event identification method based on time delay characteristics of blade tip timing data
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