Paper Title:
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.

  Info
Periodical
Advanced Materials Research (Volumes 378-379)
Chapter
Chapter 1: Applied Mechanics and Materials
Edited by
Brendan Gan, Yu Gan and Y. Yu
Pages
39-42
DOI
10.4028/www.scientific.net/AMR.378-379.39
Citation
F. F. Qiu, X. W. Liu, H. W. Shi, Y. Wang, "Acoustic Radiated Calculation of a Finite Cylindrical Shell and Interface Design of the Programs", Advanced Materials Research, Vols. 378-379, pp. 39-42, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Shin Lee, Hyun Soo Kim, C.H. Han
Abstract:An experimental modal analysis is the process to identify structure's dynamic characteristics. For investigating vibrational characteristics...
1617
Authors: Wen Bing Ye, Tian Yun Li, Xiang Zhu
Chapter 5: Coastal Engineering
Abstract:The characteristics of the sound radiation and vibrational power flow of the partially submerged cylindrical shell under a harmonic...
2303
Authors: Bing Ru Li, Xuan Yin Wang, Hui Liang Ge, Yue Peng Jiang
Chapter 6: Applied Mechanics and Mechanical Engineering
Abstract:Based on Donnell’s thin shell theory and basic equations, the wave propagation method is discussed here in detail, which is used to...
1325
Authors: Yan Qi Liu, Fu Lei Chu
Chapter 1: Vibration Engineering
Abstract:In this paper, the vibration characteristics of the rotating thin circular cylindrical shell subjected to the radial excitation are...
262
Authors: Qi Zheng Zhou, De Shi Wang, Sheng Yao Gao
Chapter 4: Sensors, Measurement and Detection Technology
Abstract:A research on the vibration and acoustic radiation of stiffened finite cylindrical shells in water under a multiple axial-excitations driven...
721