Free vibration analysis of an auxetic honeycomb sandwich plate placed at the wall of a fluid tank

Pakrooyan, Alireza; Yousefi, Peyman; Khorshidi, Korosh; Najafizadeh, M. M.; Nezamabadi, A. R.

doi:10.1016/j.oceaneng.2022.112353

Cited by 9 publications

(2 citation statements)

References 28 publications

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“…They assumed that the plate was under a blast load and studied the impacts of geometric factors of the AH core on the dynamic response and natural frequencies of such a sandwich plate. Pakrooyan et al 21 examined the free vibrational behavior of a sandwich plate with an AH core utilized as the wall of a fluid-filled tank. They inspected the effects of the AH core on the natural frequencies of the fluid-filled tank.…”

Section: Introductionmentioning

confidence: 99%

Vibration characteristics of a cylindrical sandwich shell with an FG auxetic honeycomb core and nanocomposite face layers subjected to supersonic fluid flow

Amirabadi,

Darakhsh,

Sarafraz

et al. 2024

Noise & Vibration Worldwide

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In this paper, the flutter analysis is studied for a cylindrical sandwich shell subjected to external supersonic fluid flow. The sandwich shell consists of a re-entrant auxetic honeycomb (AH) core made of functionally graded materials (FGMs) which is covered with two polymeric face layers enriched with either carbon nanotubes (CNTs), graphene nanoplatelets (GNPs), or graphene oxide powders (GOPs). The volume fraction (percentage) of the ceramic phase in the functionally graded auxetic honeycomb (FGAH) core varies from zero at the inner surface to one at the outer one based on either power-law function (P-FGM), exponential function (E-FGM), or sigmoid function (S-FGM). It is assumed that the nanofillers are distributed uniformly inside the face layers. The first-order shear deformation theory (FSDT) and the piston theory are employed to provide the mathematical models of the shell and the aerodynamic pressure, respectively. The governing equations and boundary conditions are derived via Hamilton’s principle. An exact solution is performed in the circumferential direction via harmonic trigonometric functions (sine and cosine) and an approximate solution is performed in the axial direction utilizing the differential quadrature method (DQM). The natural frequencies and corresponding damping ratios are attained through the presented semi-analytical solution and the impacts of several factors on the natural frequencies and the critical aerodynamic pressure of the shell are examined. These factors the type of the FGM, the material index, and inclined angle of the cells in the FGAH core, the thickness of the FGAH core, the type and mass fraction of the nanofillers in the nanocomposite face layers, and boundary conditions.

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Section: Introductionmentioning

confidence: 99%

Vibration characteristics of a cylindrical sandwich shell with an FG auxetic honeycomb core and nanocomposite face layers subjected to supersonic fluid flow

Amirabadi,

Darakhsh,

Sarafraz

et al. 2024

Noise & Vibration Worldwide

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“…The above research involves the results of finite element analysis [ 12 ], computational fluid dynamics [ 13 , 14 ], fluid-structure interaction [ 15 , 16 ], and vibration [ 17 , 18 ], etc., which provides a new method for the design of tanks like diesel tanks, reduces development costs, and improves product quality [ 3 ]. However, there are still deficiencies in the research on the sloshing problem of diesel truck tanks, and the influence of fill ratio and baffle plate on the vibration characteristics of diesel tanks is not considered comprehensively.…”

Section: Introductionmentioning

confidence: 99%

Investigation of structural parameters influencing vibration characteristics of heavy-duty truck diesel tanks

Hu,

Pi,

Wang

et al. 2024

PLoS ONE

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The working conditions of heavy-duty trucks are very complicated as the diesel shaking and resonance problems, which causes weld tears, separators to fall off, and other failures occur. Through experiments and finite element simulation, the natural frequency and vibration mode of a given 400 L diesel tank were calculated to study the influences of structural parameters such as the fill ratio (0.1–0.9), the number of baffle plates (0, 1, 2), the spacing of the plates (240 mm, 400 mm, 560 mm) and the aperture (38 mm, 78 mm, 118 mm) on the modal parameters with the wet mode method. The results of the hammering mode test and the simulation modal analysis agree well with the maximum error is 4.8%; the natural frequency of the diesel tank will increase with fill ratio decrease; the increase of the baffle plate number (0, 1, 2) can effectively increase the first-order natural frequency of the diesel tank, but the change of the natural frequency is not obvious on the higher order; the higher plates spacing has a smaller natural frequency; increasing the aperture will highly increase the natural frequency, 188 mm has better vibration safety.

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Geometrically nonlinear analysis of sandwich panels with auxetic honeycomb core and nanocomposite enriched face-sheets under periodic and impulsive loads

Mirfatah

Tayebikhorami

Shahmohammadi

et al. 2023

Aerospace Science and Technology

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Free vibration analysis of an auxetic honeycomb sandwich plate placed at the wall of a fluid tank

Cited by 9 publications

References 28 publications

Vibration characteristics of a cylindrical sandwich shell with an FG auxetic honeycomb core and nanocomposite face layers subjected to supersonic fluid flow

Vibration characteristics of a cylindrical sandwich shell with an FG auxetic honeycomb core and nanocomposite face layers subjected to supersonic fluid flow

Investigation of structural parameters influencing vibration characteristics of heavy-duty truck diesel tanks

Geometrically nonlinear analysis of sandwich panels with auxetic honeycomb core and nanocomposite enriched face-sheets under periodic and impulsive loads

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