Vibratory response and acoustic radiation behavior of laminated functionally graded composite plates in thermal environments

Fu, Tao; Chen, Zhaobo; Hao, Qingjun; Zhao, Yanzheng

doi:10.1177/1099636219856556

Cited by 18 publications

(3 citation statements)

References 43 publications

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“…22 The effects of the CNT volume fraction and carbon nanotubes distribution on vibro-acoustic characteristics of laminated FG-CNT composite plates under various temperatures were studied. 23 The effect of temperature profile on dynamic characteristics of aluminum silicon carbide metal matrix composite was examined. 24 Non-uniform edge loading effects on dynamic characteristics of FG-graphene composite plate were investigated and found that graphene nanoplatelets distribution and volume fraction significantly altered the resonant amplitudes.…”

Section: Introductionmentioning

confidence: 99%

Dynamic and sound radiation characteristics of a non-uniformly heated isotropic plate

Vaiduriyam

Chinnapandi

Pichaimani

2022

Noise & Vibration Worldwide

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The influence of non-uniform heating on the anisotropic plate’s dynamic and acoustic response characteristics is investigated numerically. The effect of non-uniform heating on the plate is accounted in the form of pre-stress developed on the plate due to non-uniform heating of the plate. The influence of structural boundary conditions, nature of temperature variation, and level of temperature on vibration and acoustic response characteristics are investigated in detail. Thermal buckling strength and fundamental buckling mode are highly sensitive to the nature of temperature variation across the plate. Free vibration mode shapes of the plates with high aspect ratio and free edges are changing their pattern with an increase in temperature. The resonant amplitude of sound power radiated associated with a particular mode is dominated by vibration nodes and anti-nodes shifting relative to the excitation location. Further, an increase in sound power level with an increase in temperature is observed clearly in the lower octave frequency bands.

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Section: Introductionmentioning

confidence: 99%

Dynamic and sound radiation characteristics of a non-uniformly heated isotropic plate

Vaiduriyam

Chinnapandi

Pichaimani

2022

Noise & Vibration Worldwide

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“…Additionally, they calculated the sound pressure and radiation efficiency and carried out a numerical comparison with available literature results to confirm the presented model’s validity. 37 Wen et al 38 proposed an ultra-light-weight sandwich panel with a closed octahedral core, which demonstrated the excellent acoustic property of sound transmission loss as well as outstanding mechanical performance. Hasheminejad and Jamalpoor proposed a three-dimensional analytical model developed to control sound transmission through an acoustically baffled supported hybrid smart double sandwich panel partition of rectangular planform.…”

Section: Introductionmentioning

confidence: 99%

Acoustic modeling of honeycomb structures for second load direction with damping consideration

Saffar

2022

Building Acoustics

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The control of low-frequency noise in buildings has become a critical issue because of the inadequate sound insulation in low frequencies (<200 Hz) for most partitions and doors. In the present study, an analytical model has been proposed to specify the relationship between the acoustic parameters such as acoustic impedance of honeycomb and the honeycomb geometry. In this regards, three materials (Polycarbonate, Polypropylene, and Polyurethane), seven angles (45°, 30°, 15°, 0°, −15°, −30°, −45°), and three cell arrangement (1 × 1, 2 × 2, and 3 × 3) were considered to find out the effect of these parameters on the sound absorption coefficient. Sound absorption in the frequency range of 1–500 Hz for angles of 45°, 30°, 15°, 0°, −15°, −30°, −45° was demonstrated using MATLAB software. A comparison of the results showed that the greater the angle’s absolute value, the more the sound absorption coefficient. By comparing all three materials’ absorption coefficient values, it was concluded that the 1 × 1 arrangement had greater absorption than the 2 × 2 and 3 × 3 arrangements. Also, the number of resonance peaks of polyurethane material for all angles was greater than the others in the same frequency range. Then, the panel with the honeycomb core of Polyurethane and 1 × 1 arrangement was recommended for cells with an internal angle of −45° in the present research case study for having more sound absorption.

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“…Qu and Meng [39] developed a numerical model for the nonlinear vibro-acoustic analysis of a skin–core debonded sandwich plate immersed in an infinite fluid. Fu et al [40] analyzed the vibro-acoustic behavior of laminated FG carbon nanotube reinforced composite plates based on Reddy’s higher order shear deformation theory. In despite of the abovementioned investigations, however, there is only little research on the vibro-acoustic coupling characteristics of FG honeycomb sandwich plates with negative Poisson’s ratio.…”

Section: Introductionmentioning

confidence: 99%

Free vibration and sound insulation of functionally graded honeycomb sandwich plates

Yuan

Zhang

2021

Jnl of Sandwich Structures & Materials

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Based on the hyperbolic tangent shear deformation theory, free vibration and sound insulation of two different types of functionally graded (FG) honeycomb sandwich plates with negative Poisson’s ratio are studied in this paper. Using Hamilton’s principle, the vibration and vibro-acoustic coupling dynamic equations for FG honeycomb sandwich plates with simply supported edges are established. By applying the Navier’s method and fluid–solid interface conditions, the derived governing dynamic equations are solved. The natural frequencies and the sound insulation of FG honeycomb sandwich plates obtained in this work are compared with the numerical results by the finite element simulation. It is proven that the theoretical models for the free vibration and the sound insulation are accurate and efficient. Moreover, FG sandwich plates with different honeycomb cores are investigated and compared. The corresponding results show that the FG honeycomb core with negative Poisson’s ratio can yield much lower frequencies. Then, the influences of various geometrical and material parameters on the vibration and sound insulation performance are systematically analyzed.

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Vibratory response and acoustic radiation behavior of laminated functionally graded composite plates in thermal environments

Cited by 18 publications

References 43 publications

Dynamic and sound radiation characteristics of a non-uniformly heated isotropic plate

Dynamic and sound radiation characteristics of a non-uniformly heated isotropic plate

Acoustic modeling of honeycomb structures for second load direction with damping consideration

Free vibration and sound insulation of functionally graded honeycomb sandwich plates

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