Vibroacoustic Response of a Finite Clamped Laminated Composite Plate

Vibroacoustic analysis of a clamped finite orthotropic laminated double-composite plate with an air cavity

“…The vibroacoustic response of an orthotropic symmetric double-composite plate with air cavity (Fig. 1) induced by sound excitation is governed by [22][23][24]…”

“…where w 1,2 are the transverse displacements of the two single-plates; D ij (ij = 11,12,22,66) are the flexural rigidities; m * is the surface density of the plate; ρ 0 is the air density; j = √ −1, ω is the angular frequency of the incident sound and Φ i (i = 1, 2, 3) are the velocity potentials of the three acoustic fields: sound incidence field, air cavity field and transmitting field, respectively.…”

“…The natural frequencies of the bottom and upper orthotropic laminated composite plates are determined by [22]…”

“…However, to the author's best knowledge, there exist a few of studies on the vibroacoustic behavior and STL across a finite orthotropic clamped single and double-composite plate. More recently, Thinh and Thanh calculated the loss of sound propagation through a finite simply supported [21] and clamped [22] composite plate and also considered the effect of some parameters on the sound insulation ability of the plate.…”

Effect of temperature on sound transmission loss of laminated composite plate

“…Lu and Xin [4] studied the vibro-acoustic behavior of structures of the form: metallic panels or metallic panels with reinforcement ribbed, metallic double panels with air cavity, and sandwich panels consisting of the skin is metallic with a core of porous elastic is excited by harmonic sound waves in an air or liquid medium, both theoretically and experimentally. Thinh and Thanh in [5] investigated the vibroacoustic of a clamped finite orthotropic laminated double composite plate with a closed air cavity. Using the method of modal decomposition, a double Fourier series solution is obtained to characterize the vibroacoustic performance of the structure.…”