Dynamic pressure on lock gate structure coupled with fluid

Singh, Deepak Kumar; Pal, Priyaranjan; Duggal, S.K.

doi:10.21595/vp.2019.21124

Cited by 10 publications

(2 citation statements)

References 7 publications

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“…Singh et al 27,28 evaluated the frequencies of a lock gate with various free surfaces of the fluid. Singh et al 29,30 assessed the dynamic pressure developed over the lock gates (unstiffened and stiffened) for the different aspect ratios. Bozyigit et al 31 used the transfer matrix method to determine the vibration characteristic of cracked frames with different crack ratios.…”

Section: Introductionmentioning

confidence: 99%

Forced vibration characteristics of lock gate structure

Singh

Pal

Duggal

2023

Noise & Vibration Worldwide

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The influence of fluid on the lock gate structure in a dam-reservoir system subjected to sinusoidal excitation is investigated. The gate’s material is considered homogeneous, isotropic, prismatic, and elastic, and the gate is analysed using Mindlin’s plate theory. The fluid is considered non-viscous, incompressible, and has an irrotational flow field. The method of separation of variables with the Fourier half range cosine series is used to solve the fluid domain’s Laplace equation. The fluid’s infinite length is curtailed near the gate, controlling the calculations without affecting the results too much. Both the domains are interacted with each other by transferring the fluid’s pressure to the gate and the gate’s acceleration to fluid. At the fluid’s free surface, undisturbed and linearised, conditions are considered. The Newmark-beta time integration approach is used to solve the forced vibration equations using developed FORTRAN computer code. A study has been performed to assess the dynamic pressure variation due to fluid. The present results may be valuable if the lock gate is subjected to any terrible natural phenomena.

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Section: Introductionmentioning

confidence: 99%

Forced vibration characteristics of lock gate structure

Singh

Pal

Duggal

2023

Noise & Vibration Worldwide

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“…23 The vibration analysis of lock gate structures, stiffened and unstiffened, is performed. [24][25][26][27] Free vibration analysis of stiffened plates is carried out using finite element method (FEM). 28 The dynamic response of stiffened plated structures is analysed under moving loads with different velocities using the finite element method.…”

Section: Introductionmentioning

confidence: 99%

Analysis of isotropic stiffened plate structure

Singh,

Agarwal

2023

Noise & Vibration Worldwide

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The analysis of stiffened plate has been carried out using finite element method. The study is divided into static and dynamic analyses. Primarily, free vibration frequencies of the stiffened plate have been determined followed by determination of deflection and von Mises stress for the stiffened plate subjected to the unit uniformly distributed load (1 kN/m2). Further, deflection and von Mises stress are determined, when the plate structure is subjected to hydrostatic loading. The analyses, static and dynamic, have been done using ANSYS Workbench 15.0. A single flat stiffener is used to stiffen the plate structure and the results are evaluated by varying the stiffener geometry, keeping the volume of material almost same as the unstiffened plate. Stiffened plate structure is very popular in the structural engineering domain and has a wide range of engineering applications from ship to aerospace structures. The material used to model stiffener is extracted from the primary plate for keeping the same volume of material. The plate structure is stiffened to reduce the out-of-plane bending even if the same (approximately) amount of material is utilised. Eight-noded plate bending and two-noded beam elements are used to model the plate and stiffener, respectively. The obtained results are compared with the published results and the effect of varying stiffener geometry is further examined. It may be concluded that the response of the stiffened plates are better compared to unstiffened plate even if the same or even less quantity of material is utilised in stiffening. The present findings are useful for the designers when the plate structure is influenced by the surrounding fluid.

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Effect of Stiffeners on the Natural Frequencies of Stiffened Plate

Singh

Sharma

2021

Lecture Notes in Civil Engineering

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Dynamic pressure on lock gate structure coupled with fluid

Cited by 10 publications

References 7 publications

Forced vibration characteristics of lock gate structure

Forced vibration characteristics of lock gate structure

Analysis of isotropic stiffened plate structure

Effect of Stiffeners on the Natural Frequencies of Stiffened Plate

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