Vibration and modal analysis of a rotating disc using high-speed 3D digital image correlation

Huňady, Róbert; Pavelka, Peter; Lengvarský, Pavol

doi:10.1016/j.ymssp.2018.11.024

Cited by 46 publications

(13 citation statements)

References 40 publications

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“…Vision 3D reconstruction technology can be utilized to acquire the spatial information of target objects for efficient and accurate noncontact measurement [4,5]. It is an effective approach to tasks such as real-time target tracking, quality monitoring, and surface data acquisition; further, it is the key to realizing automatic, intelligent, and safe machine operations [6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Vision-Based Three-Dimensional Reconstruction and Monitoring of Large-Scale Steel Tubular Structures

Tang

Chen

Lin

et al. 2020

Advances in Civil Engineering

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A four-ocular vision system is proposed for the three-dimensional (3D) reconstruction of large-scale concrete-filled steel tube (CFST) under complex testing conditions. These measurements are vitally important for evaluating the seismic performance and 3D deformation of large-scale specimens. A four-ocular vision system is constructed to sample the large-scale CFST; then point cloud acquisition, point cloud filtering, and point cloud stitching algorithms are applied to obtain a 3D point cloud of the specimen surface. A point cloud correction algorithm based on geometric features and a deep learning algorithm are utilized, respectively, to correct the coordinates of the stitched point cloud. This enhances the vision measurement accuracy in complex environments and therefore yields a higher-accuracy 3D model for the purposes of real-time complex surface monitoring. The performance indicators of the two algorithms are evaluated on actual tasks. The cross-sectional diameters at specific heights in the reconstructed models are calculated and compared against laser rangefinder data to test the performance of the proposed algorithms. A visual tracking test on a CFST under cyclic loading shows that the reconstructed output well reflects the complex 3D surface after correction and meets the requirements for dynamic monitoring. The proposed methodology is applicable to complex environments featuring dynamic movement, mechanical vibration, and continuously changing features.

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Section: Introductionmentioning

confidence: 99%

“…Existing target surface monitoring techniques based on 3D reconstruction include monocular vision, binocular vision, and multivision methods [15,21,25,26]. e monocular vision method cannot directly reveal 3D visual information; it must be restored through Structure from Motion (SFM) technology [27].…”

Section: Introductionmentioning

confidence: 99%

Vision-Based Three-Dimensional Reconstruction and Monitoring of Large-Scale Steel Tubular Structures

Tang

Chen

Lin

et al. 2020

Advances in Civil Engineering

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“…In the work by Huňady et al [21], the results of three experiments are presented, in which oscillatory motions around a flat disk having rotation are studied. These results are characterized by more pronounced frequency response spectra.…”

Section: Review Of the Researchmentioning

confidence: 99%

Differential equations of motion of a material point in the perpendicular plane to the plane of the gravitating disk

Rakhmetullina

Amenova

2021

IJEECS

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This paper presents an analytical solution of the differential equations of motion of a material point in the plane perpendicular to the plane of the gravitating disk. The differential equations of the problem under study and the applied Gilden's method are described in the works of A. Poincaré. Differential equations refer to nonlinear equations. The analysis of methods for solving nonlinear differential equations was carried out. The methodology of applying the Gilden method to the solution of the differential equations under consideration can be applied in studies of the problem of the motion of celestial bodies in the “disk-material point” system in perpendicular planes. To identify the various properties of the gravitating disk, an analytical review of the state of the problem of the motion of a material point in the field of a gravitating disk is carried out. Summing up the presented review on the problem under study, a conclusion is made. The substantive formulation of the problem is described, which is formulated as follows: the study of the influence of disk-shaped bodies on the motion of a material point and methods for their solution.

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“…Hence, many studies have employed this technique for simply obtaining shapes [ 9 , 10 , 11 , 12 , 13 ], even with low-speed equipment [ 14 , 15 ]. Full modal characterization has been also performed in different studies for experimental modal analysis [ 16 , 17 , 18 ], showing different capabilities and applications such as the combination of measurements with a multiview system [ 19 ], the evaluation of a single-camera alternative to DIC for 3D measurements [ 20 ] or measuring in rotating disks [ 21 ] and in artificial beetle’s wings [ 22 ]. Furthermore, the technique has shown potential for vibration-based methodologies for structural health monitoring [ 23 ], evaluating impact damage severities on mode shapes [ 24 ] or locating damages taking advantage of the dense information [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Full-Field Operational Modal Analysis of an Aircraft Composite Panel from the Dynamic Response in Multi-Impact Test

Molina-Viedma

López‐Alba

Felipe-Sesé

et al. 2021

Sensors

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Experimental characterization and validation of skin components in aircraft entails multiple evaluations (structural, aerodynamic, acoustic, etc.) and expensive campaigns. They require different rigs and equipment to perform the necessary tests. Two of the main dynamic characterizations include the energy absorption under impact forcing and the identification of modal parameters through the vibration response under any broadband excitation, which also includes impacts. This work exploits the response of a stiffened aircraft composite panel submitted to a multi-impact excitation, which is intended for impact and energy absorption analysis. Based on the high stiffness of composite materials, the study worked under the assumption that the global response to the multi-impact excitation is linear with small strains, neglecting the nonlinear behavior produced by local damage generation. Then, modal identification could be performed. The vibration after the impact was measured by high-speed 3D digital image correlation and employed for full-field operational modal analysis. Multiple modes were characterized in a wide spectrum, exploiting the advantages of the full-field noninvasive techniques. These results described a consistent modal behavior of the panel along with good indicators of mode separation given by the auto modal assurance criterion (Auto-MAC). Hence, it illustrates the possibility of performing these dynamic characterizations in a single test, offering additional information while reducing time and investment during the validation of these structures.

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Vibration and modal analysis of a rotating disc using high-speed 3D digital image correlation

Cited by 46 publications

References 40 publications

Vision-Based Three-Dimensional Reconstruction and Monitoring of Large-Scale Steel Tubular Structures

Vision-Based Three-Dimensional Reconstruction and Monitoring of Large-Scale Steel Tubular Structures

Differential equations of motion of a material point in the perpendicular plane to the plane of the gravitating disk

Full-Field Operational Modal Analysis of an Aircraft Composite Panel from the Dynamic Response in Multi-Impact Test

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