Simulation of torrent vibration of sluice gate based on extended finite element method

Wei Yan

doi:10.1117/12.2637618

13 May 2022 Simulation of torrent vibration of sluice gate based on extended finite element method

Wei Yan

Proceedings Volume 12248, Second International Conference on Sensors and Information Technology (ICSI 2022); 1224813 (2022) https://doi.org/10.1117/12.2637618
Event: 2nd International Conference on Sensors and Information Technology (ICSI 2022), 2022, Nanjing, China

Abstract

In hydraulic engineering, as a low head hydraulic structure, sluice plays an important role in regulating water resources, agricultural irrigation, safe flood control, industrial production and so on. Due to the limitation of geological conditions, many sluice gates are built on soft soil foundation, which usually can not meet the requirements of foundation bearing capacity in the structural design code. In practical engineering, pile groups are usually designed under the sluice bottom plate to make the pile foundation and foundation jointly bear the upper load. In this paper, taking the actual project of sluice as an example, based on the ANSYS finite element simulation technology, considering the dynamic interaction of water body structure foundation and the nonlinear problem of pile-soil contact, the finite element simulation model is established and analyzed. The dynamic coupling system of structure and water body is established. The natural vibration characteristics of the overall structure are analyzed. And the numerical analysis results are compared with the analysis results of measured data. The calculation results of the finite element model established according to FSI theory are more consistent with the modal identification results of CEEMDAN-SVD. The calculation accuracy and modal identification are better. They confirm each other and can more accurately reflect the working characteristics of the sluice structure. In the working state, the modal identification method can accurately extract the modal characteristic peak of sluice structure, and can be better applied in the dynamic characteristic analysis of sluice structure.

Citation Download Citation

Wei Yan "Simulation of torrent vibration of sluice gate based on extended finite element method", Proc. SPIE 12248, Second International Conference on Sensors and Information Technology (ICSI 2022), 1224813 (13 May 2022); https://doi.org/10.1117/12.2637618

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KEYWORDS

Denoising

Analytical research

Sensors

Bridges

Finite element methods

Interference (communication)

Reconstruction algorithms

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