Vibro-acoustic analysis of the thin laminated rectangular plate-cavity coupling system

2018 ◽  
Vol 189 ◽  
pp. 570-585 ◽  
Author(s):  
Hong Zhang ◽  
Dongyan Shi ◽  
Shuai Zha ◽  
Qingshan Wang
Keyword(s):  
Rectangular Plate ◽  
Acoustic Analysis ◽  
Coupling System ◽  
Cavity Coupling

scholarly journals Vibro-acoustic analysis of a trapezoidal cavity with a clamped flexible wall

2018 ◽  
Vol 37 (4) ◽  
pp. 801-815 ◽  
Author(s):  
Yuan Wang ◽  
Jianrun Zhang ◽  
Xinzhou Zhang ◽  
Bo Wu
Keyword(s):  
Acoustic Analysis ◽  
Coupled Model ◽  
Coupled System ◽  
Coupling Theory ◽  
Incident Plane ◽  
Resonance Frequencies ◽  
Modal Coupling ◽  
Cavity Coupling ◽  
Flexible Wall ◽  
Matching Degree

The coupled model between trapezoidal cavity and its clamped flexible wall is developed using classical modal coupling theory. Based on the coupled model, the resonance frequencies of coupled system are obtained and compared with the corresponding uncoupled one. Meanwhile, the reason for the variation of resonance frequencies of coupled system modes is analyzed in detail. Then, the response of coupled system is investigated using the acoustic potential energy in the cavity and panel vibration kinetic energy when it is excited by an incident plane wave outside of the cavity. Coupling coefficient between trapezoidal cavity and its clamped flexible wall is proposed to assess the modal matching degree between them. It is shown that the coupling selection is not satisfied except in the axis direction which is parallel to the inclined wall. In addition, a rectangular cavity with a clamped flexible wall is also considered and compared with that of the trapezoidal one.

scholarly journals Vibro-acoustic coupling characteristics of orthotropic L-shaped plate–cavity coupling system

2019 ◽  
Vol 39 (4) ◽  
pp. 1102-1126
Author(s):  
Dongyan Shi ◽  
Wenhui Ren ◽  
Hong Zhang ◽  
Gai Liu ◽  
Qingshan Wang
Keyword(s):  
Boundary Conditions ◽  
Sound Pressure ◽  
Future Research ◽  
Response Analysis ◽  
Acoustic Coupling ◽  
Acoustic Cavity ◽  
Coupling System ◽  
Cavity Coupling ◽  
Coupling Characteristics ◽  
Admissible Functions

The research object of this paper is the L-shaped plate–cavity coupling system established by a cuboid acoustic cavity with rigid-wall or impedance-wall and L-shaped plate with numerous elastic boundary conditions in view of the Fourier series method. The main research content of this paper is the vibro-acoustic coupling characteristics. In this paper, the displacements admissible functions of the L-shaped plate are generally set as the sum of two cosines’ product and two polynomials. Sound pressure admissible functions of the cuboid acoustic cavity can be considered as the sum of three cosines’ product and six polynomials. The discontinuity of coupling system at all boundaries in the overall solution domain is overcome in this way. Through the energy principle and the Rayleigh-Ritz technology, it can be got that the solving matrix equation of the L-shaped plate-cavity coupling system. Based on verifying the great numerical characteristics of the L-shaped plate–cavity coupling model, they obtained both the frequency analysis and the displacement or sound pressure response analysis under the excitation, including a unit simple harmonic force or a unit monopole source. The advantages of this method are parameterization and versatility. In addition, some new achievements have been shown, based on various materials, boundary conditions, thicknesses, and orthotropic degrees, which may become the foundation for the future research.

Remote quantum state preparation and transfer with the interactions of photons and quantum-dot spins

2014 ◽  
Vol 28 (16) ◽  
pp. 1450127 ◽  
Author(s):  
Xiao-Jie Yuan ◽  
Ping Dong ◽  
Min Wang ◽  
Ming Yang ◽  
Zhuo-Liang Cao
Keyword(s):  
Quantum Dot ◽  
Quantum State ◽  
Single Photon ◽  
State Preparation ◽  
Coupling System ◽  
Quantum State Preparation ◽  
Cavity Coupling ◽  
Photon Pulse ◽  
Cavity System ◽  
Singly Charged

In this paper, we propose a scheme of remote quantum state preparation and transfer that use a double-sided cavity system, in which a singly charged quantum dot is embedded in a double-sided optical microcavity with partially reflective top and bottom mirrors. The implementation of the scheme mainly depends on the interaction between the input single-photon pulse and the spins of electrons in the coupling system. Discussions about the effect of the cavity loss, side leakage and exciton–cavity coupling strength for the fidelity of generated states show that the fidelity can remain high enough by controlling these parameters. Therefore, the current scheme is feasible in the experiment.

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