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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Format | Patent |
Language | Chinese 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 |
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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 |
Author_xml | – fullname: NIU GUANGYUE – fullname: LI FAFU – fullname: JIANG JIAJIA – fullname: QIN HAOWEI – fullname: DUAN FAJIE – fullname: GUO PEIXUAN – fullname: LIU HAO – fullname: FU XIAO |
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Discipline | Medicine Chemistry Sciences Physics |
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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