Acoustic Radiated Calculation of a Finite Cylindrical Shell and Interface Design of the Programs

Fei Fei Qiu; Xiao Wei Liu; Huan Wen Shi; Yong Wang

doi:10.4028/www.scientific.net/AMR.378-379.39

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 378-379Acoustic Radiated Calculation of a Finite...

Acoustic Radiated Calculation of a Finite Cylindrical Shell and Interface Design of the Programs

Abstract:

Based upon the vibratory equation and sound radiation impedance of a cylindrical shell, the sound field distribution of a finite cylindrical shell simply-supported at two infinite rigid cylindrical shells were resolved with considering the structural loss. An interface containing some buttons connected with all the programs was designed by using Matlab, and their data were all stored in a file. It has been shown that the sound radiation power of the cylindrical shell decreases and the radiation efficiency increases with increasing of structural damping loss factors; when the frequency of the driving force is low, the sound field shapes “∞” directivity pattern; When the frequency of the driving force grows higher the sound directivity pattern becomes complex due to superposition of axial modes and circumferential modes; Only when the radiation of the end plates is much weaker than the cylindrical shell the analytical results of the shell simply-supported at two infinite rigid cylindrical shells can be utilized to illustrate the sound radiation by a finite cylindrical shell with two end plates.

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Periodical:

Advanced Materials Research (Volumes 378-379)

Pages:

39-42

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.378-379.39

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Online since:

October 2011

Authors:

Fei Fei Qiu, Xiao Wei Liu, Huan Wen Shi, Yong Wang

Keywords:

Acoustic Field Distribution, Cylindrical Shell, Interface Designed, Structural Loss

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References

[1] Wen Lihua. On Using Wavelets to Solve Problem of Acoustic Radiation and Scattering from Axisymmetric Body with Arbitrary Boundary Conditions. Doctorial Thesis of Northwestern Polytechnic University, (1999).

Google Scholar

[2] Harari A, Sandman B E, Zaldonis J A. Journal of the Acoustical Society of America, 1994, 95(6): 3360～3368.

Google Scholar

[3] Sandman B E. Computers & Structures, 1976, 6: 467～473.

Google Scholar

[4] Stepanishen P R. Journal of the Acoustical Society of America, 1982, 71(4): 813～823.

Google Scholar

[5] Junger M C, Feit D. Sound, Structure and their interaction[M]. 2nd Edition, Cambridge, Massachusetts: The MIT Press, 1986; 216～311.

Google Scholar