Acoustic Radiation From an Infinite Laminated Composite Cylindrical Shell With Doubly Periodic Rings

Yin, Xuewen; Liu, L. J.; Hu, Hua; Rongying, Shen

doi:10.1115/1.2980376

Cited by 23 publications

(5 citation statements)

References 19 publications

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“…Stiffened plates are extensively used in a variety of engineering applications such as ship hulls, aircraft fuselages, etc. The importance of the dynamics of such structures can be deduced from the fact that intensive studies have been conducted in related topics (Mace, 1980, 1981; Mead, 1990; Burroughs and Hallander, 1992; Guo, 1996; Yin et al., 2007, 2009; Mak and Wang, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Later, Burroughs and Hallander (1992), Guo (1996), and Yin et al. (2007, 2009) extended Mace’s work to sound radiation from infinitely isotropic cylindrical shells, laminated composite plates, and cylindrical shells, respectively, which are reinforced with periodic stiffeners or rings. In their works, the reactive forces due to the stiffeners were expressed as the function of the spectral dynamic stiffness and the vibration velocities of the stiffeners.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic stiffness formulation for the vibrations of stiffened plate structures with consideration of in-plane deformation

Yin¹,

Wu²,

Zhong³

et al. 2017

Journal of Vibration and Control

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A dynamic stiffness method is presented for the vibrations of plate structures that are reinforced by eccentric stiffeners. The model incorporates both out-of-plane and in-plane deformations of the plates and the stiffeners. Based on the relationship between the forces and displacements along the common edges of the plate or beam elements, the dynamic stiffness formulae for the plate and the beam elements are derived, respectively. The globally assembled dynamic stiffness matrix is then obtained using the finite element method so that the dynamics of built-up stiffened plates can be readily addressed by using the present method. Compared to the conventional finite element model, the dynamic stiffness model can provide very accurate solutions using only one element over each uniform plate and beam member, regardless of its geometry.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic stiffness formulation for the vibrations of stiffened plate structures with consideration of in-plane deformation

Yin¹,

Wu²,

Zhong³

et al. 2017

Journal of Vibration and Control

View full text Add to dashboard Cite

show abstract

“…However, less attention has been paid to the sound radiation and transmission of stiffened laminated composite plates. Based on the classical laminated composite plate theory (CLPT), Yin et al [15,16] extended Mace's model [5] to study the parallel stiffened composite plate. Recently, a first order shear deformation theory (FSDT) is employed by Mejdi et al [17] to consider the transverse shear strain of the base plate, where the in plane motion of the stiffeners is also accounted for.…”

Section: Introductionmentioning

confidence: 99%

Transmission loss of orthogonally stiffened laminated composite plates

Shen

Xin

2015

J Mech Sci Technol

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Sound transmission through laminated composite plates reinforced by two sets of orthogonal stiffeners is investigated theoretically. A layerwise shear deformable theory is used to model the vibration of the laminated composite face-panel; A governing equation of I section composite beam is introduced, which accounts for the extensional, flexural, torsional and their coupling effects. The Euler-Bernoulli beam theory and torsional wave equation are employed to describe the flexural and rotational motions of the rib stiffeners, respectively. The technique of Fourier transform is applied to solve the governing equations resulting in infinite sets of simultaneous algebraic coupled equations, which are numerically solved by truncating them into a finite range insofar as the solutions converge. The accuracy of the numerical solutions is checked by comparing the present model predictions with existing literature. The validated model is subsequently employed to quantify the effects of the spacing of the stiffeners and the stacking geometry of the laminated composite face-panel and stiffeners on sound transmission through the structure. It is demonstrated that both the stiffener spacing and the stacking geometry have significant influences on the sound transmission loss across the structure. The proposed theoretical model successfully characterizes the process of sound penetration through stiffened laminated composite plates, which should be much helpful for the practical design of such structures with acoustic requirements.

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“…Acoustic radiation from an infinite fluid-loaded, laminated composite shell, which is reinforced by doubly periodic rings, was investigated by Yin et al 22 The rings interact with the shell only through normal forces. The solution for the radial displacement in the wave number domain is obtained by using the method developed by Mace 7 for an infinite flat plate.…”

Section: Introductionmentioning

confidence: 99%

Prediction of the vibro-acoustic behavior of a submerged shell non periodically stiffened by internal frames

Maxit

Ginoux²

2010

The Journal of the Acoustical Society of America

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This paper describes the development of a numerical model to predict the vibro-acoustic behavior of an externally fluid loaded shell with non-uniformly space stiffeners and transversal bulkheads. This model constitutes an extension of the existing semi-analytic capability in predicting the acoustics of axisymmetric structures. It is based on the circumferential admittance approach (CAA) which consists in substructuring the problem so that the fluid loaded shell constitutes one subsystem and the frames constitute other independent subsystems. These subsystems are coupled together by assembling the circumferential admittances that characterize each uncoupled subsystem. Different numerical approaches can be used to estimate these admittances. The standard finite element code is well adapted for evaluating the admittances of the internal frames whatever their cross-section geometries and material properties. Classical discretization methods such as finite elements and boundary elements are too time-consuming for the fluid loaded shell. To avoid this obstacle, three different approaches with different degrees of approximation are proposed to estimate the shell admittances. Comparisons with a reference case are proposed to evaluate the accuracy and the efficiency of each of these three approaches. With the optimal approach, CAA gives very good results in satisfactory computing time. It is well-adapted for analyzing the behavior of a submarine pressure hull in a wide frequency range of interest.

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Acoustic Radiation From an Infinite Laminated Composite Cylindrical Shell With Doubly Periodic Rings

Cited by 23 publications

References 19 publications

Dynamic stiffness formulation for the vibrations of stiffened plate structures with consideration of in-plane deformation

Dynamic stiffness formulation for the vibrations of stiffened plate structures with consideration of in-plane deformation

Transmission loss of orthogonally stiffened laminated composite plates

Prediction of the vibro-acoustic behavior of a submerged shell non periodically stiffened by internal frames

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