Modal impedances for nonaxisymmetric vibrations of a thin spherical shell
作者:
Richard B. Evans,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1996)
卷期:
Volume 100,
issue 2
页码: 1242-1245
ISSN:0001-4966
年代: 1996
DOI:10.1121/1.415972
出版商: Acoustical Society of America
关键词: SHELLS;SPHERICAL CONFIGURATION;MECHANICAL VIBRATIONS;EQUATIONS OF MOTION;MODE SELECTION;ASYMMETRY
数据来源: AIP
摘要:
Modal impedances are found by solving the equations of motion of a thin spherical shell in terms of nonaxisymmetric modes of vibration. These mechanical impedances relate the modal expansion coefficients of the applied force per unit area and the velocity of the shell. The application and interpretation of these modal impedances require an awareness of the lack of orthogonality of certain modes. In proper combinations, the modal impedances in the nonaxisymmetric case are found to be identical to known modal impedances in the axisymmetric case. The analysis is restricted to extensional effects of a thin shell with radial forcing.
点击下载:
PDF
(106KB)
返 回