Displacement–strain transformation for a variable cross-section beam based on hypergeometric and Meijer-G functions

Deng, Huaxia; Wu, Yimin; Wang, Jun; Wang, Buyi; Zhong, Xiang

doi:10.1016/j.measurement.2021.110246

Cited by 4 publications

(1 citation statement)

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“…Some researchers have combined structural light projection measurements with vibrations, on the basis of which global measurements have been carried out for various structures [21,22]. Wu (2022) solves the problem of full-field strain prediction of variable cross-section beams by the visual method, and improves the theoretical calculation accuracy of displacement-strain transformation [23]. This method is aimed at the measurement of modal parameters for known vibrations and thus has limitations for the identification of modal parameters in operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Non-Contact Global Measurement of the Engine in Working Condition

Wang

Deng

et al. 2023

Photonics

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Vibration measurements are essential for studying the dynamic properties of structures, as they can better capture the global characteristics of the structure. This paper proposes a three-dimensional measurement method based on projected structured light to address the challenge of measuring the vibration information of engine pipes during operation. By using the data obtained from this method and applying the time domain analysis method for modal analysis, the modal parameters of the engine under operating conditions can be obtained. The feasibility of this method is demonstrated by comparing it with different measurement methods, and it provides an effective solution for modal identification of engines under operating conditions.

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Section: Introductionmentioning

confidence: 99%