A METHOD TO PREDICT SOUND RADIATION FROM A PLATE-ENDED CYLINDRICAL SHELL EXCITED BY AN EXTERNAL FORCE
✍ Scribed by J.H. WU; H.L. CHEN; W.B. AN
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 140 KB
- Volume
- 237
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
The vibroacoustic coupling between a "nite circular cylindrical shell closed at each end by a piece of circular plate and its enclosed cavity is analyzed in this paper by using a new method, called the covering-domain method. The covering-domain method, which transforms the calculation of the scattering sound "eld of a complicated-shaped close cavity to that of a series of simply regular-shaped close shells such as close spherical shell and in"nite cylindrical shell, is applied to calculating the scattering sound "eld of the plate-ended cylindrical shell structure. So we can predict radiated sound pressure of the composite elastic structure excited by an external force by using the acoustical reciprocity theorem. The new method expands practical application of the reciprocity theorem. It is veri"ed to be valid by a corresponding test.