Dynamic strain field measuring method and system for rotor blade based on blade tip timing

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United States of America Patent

PATENT NO 11860066
APP PUB NO 20210278312A1
SERIAL NO

17325208

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Abstract

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The present invention discloses a dynamic strain field measuring method and system for a rotor blade based on blade tip timing. The method includes the following steps: establishing a three-dimensional finite element model of a to-be-measured rotor blade, and extracting modal parameters of the three-dimensional finite element model; determining the number and circumferential mounting positions of blade tip timing sensors; establishing a mapping relationship between single-point displacement and full-field dynamic strains of the blade; acquiring blade tip single-point displacement of the rotor blade based on the blade tip timing sensors; and realizing, by the single-point displacement, dynamic strain measurement in any position and direction of the rotor blade based on the mapping relationship.

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Patent Owner(s)

Patent OwnerAddress
XI'AN JIAOTONG UNIVERSITYBEILIN DISTRICT XIANNING WEST ROAD 710049 SHAANXI CITY OF XI'AN PROVINCE NO 28 XI'AN CITY SHAANXI PROVINCE 710049

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ao, Chunyan Shaanxi, CN 2 2
Chen, Xuefeng Shaanxi, CN 100 173
He, Weifeng Shaanxi, CN 8 35
Qiao, Baijie Shaanxi, CN 3 2
Yang, Laihao Shaanxi, CN 4 1

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