首页|A novel subset assignment and matching method for DIC measurement of complex deformation in aircraft braking process

A novel subset assignment and matching method for DIC measurement of complex deformation in aircraft braking process

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This paper proposes a measurement method related to the braking deformation of a complex motion.During the braking process,the deformation of the wheel includes large amounts of movement,vibration,warping,and distortion.A novel subset assignment and correlation method is proposed to measure the complex deformation.The proposed method can greatly improve the accuracy and stability of the calculation of complex deformations by simplifying the complex deformation into translational deformations in logarithmic coordinate system.According to the simulation and actual experiments,the proposed method can be utilized to measure the defor-mations of up to 100％tensile strain under complex deformation.According to the accuracy ver-ification experiment,the error of the proposed method is less than 50 με.The results show that the proposed method can effectively carry out structural deformation measurement in the complex motion and deformation process.The proposed method has great significance for structural perfor-mance analysis and optimization design considering complex motion and deformation.

Complex deformationMeasurementDigital image correlationAircraft brakingDeformation field

Xin SHI、Xiang GUO、Tao SUO、Yingtao YUAN、Hongli HE、Zhiyong REN

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School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China

International Research Laboratory of Impact Dynamics and its Engineering Application,Xi'an 710072,China

Institute of Extreme Mechanics,Northwestern Polytechnical University,Xi'an 710072,China

Chinese Flight Test Establishment,Xi'an 710089,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

12072279120022151160220112141203U2341236

2024

10.1016/j.cja.2024.02.003

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(8)
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