Elastic Panel Backed by an Acoustic Cavity
Elastic Panel Backed by an Acoustic Cavity
Elastic Panel Backed by an Acoustic Cavity
Elastic Panel Backed by an Acoustic Cavity
Elastic Panel Backed by an Acoustic Cavity

In this example, the coupling between an elastic rectangular panel and the acoustic cavity backing it is analyzed. A coupled BEM-FEM formulation is employed by Coustyx to model the feedback coupling between the surface acoustic pressure and the structure vibration. The FE model is further reduced using structure invacuo modes. Coustyx results are compared with the analytical series solution derived by Pretlove [1]. Excellent agreement between the two is observed.

References

  1. A. J. Pretlove, "Free vibrations of a rectangular panel backed by a closed rectangular cavity", Journal of Sound and Vibration, 2:197-209, 1965.

In this example, the coupling between an elastic rectangular panel and the acoustic cavity backing it is analyzed. A coupled BEM-FEM formulation is employed by Coustyx to model the feedback coupling between the surface acoustic pressure and the structure vibration. The FE model is further reduced using structure invacuo modes. Coustyx results are compared with the analytical series solution derived by Pretlove [1]. Excellent agreement between the two is observed.

References

  1. A. J. Pretlove, "Free vibrations of a rectangular panel backed by a closed rectangular cavity", Journal of Sound and Vibration, 2:197-209, 1965.

In this example, the coupling between an elastic rectangular panel and the acoustic cavity backing it is analyzed. A coupled BEM-FEM formulation is employed by Coustyx to model the feedback coupling between the surface acoustic pressure and the structure vibration. The FE model is further reduced using structure invacuo modes. Coustyx results are compared with the analytical series solution derived by Pretlove [1]. Excellent agreement between the two is observed.

References

  1. A. J. Pretlove, "Free vibrations of a rectangular panel backed by a closed rectangular cavity", Journal of Sound and Vibration, 2:197-209, 1965.

In this example, the coupling between an elastic rectangular panel and the acoustic cavity backing it is analyzed. A coupled BEM-FEM formulation is employed by Coustyx to model the feedback coupling between the surface acoustic pressure and the structure vibration. The FE model is further reduced using structure invacuo modes. Coustyx results are compared with the analytical series solution derived by Pretlove [1]. Excellent agreement between the two is observed.

References

  1. A. J. Pretlove, "Free vibrations of a rectangular panel backed by a closed rectangular cavity", Journal of Sound and Vibration, 2:197-209, 1965.

In this example, the coupling between an elastic rectangular panel and the acoustic cavity backing it is analyzed. A coupled BEM-FEM formulation is employed by Coustyx to model the feedback coupling between the surface acoustic pressure and the structure vibration. The FE model is further reduced using structure invacuo modes. Coustyx results are compared with the analytical series solution derived by Pretlove [1]. Excellent agreement between the two is observed.

References

  1. A. J. Pretlove, "Free vibrations of a rectangular panel backed by a closed rectangular cavity", Journal of Sound and Vibration, 2:197-209, 1965.

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Download and install the latest version of Coustyx. The Demo Model contains the Coustyx model for this example problem, with an embedded trial license that is valid only for this example.
Download and install the latest version of Coustyx. The Demo Model contains the Coustyx model for this example problem, with an embedded trial license that is valid only for this example.
Download and install the latest version of Coustyx. The Demo Model contains the Coustyx model for this example problem, with an embedded trial license that is valid only for this example.
Download and install the latest version of Coustyx. The Demo Model contains the Coustyx model for this example problem, with an embedded trial license that is valid only for this example.
Download and install the latest version of Coustyx. The Demo Model contains the Coustyx model for this example problem, with an embedded trial license that is valid only for this example.