The effects of wall discontinuities on the propagation of flexural waves in cylindrical shells
Abstract
The transmission of flexural type waves through various discontinuities in the walls of cylindrical shells was investigated. Theoretical curves of transmission loss were obtained for different circumferential wavenumbers and wave types, as functions of frequency. Material stiffness and extensional phase speed, together with the relationship between radial vibration amplitude and total wave power of propagation, were important factors which were found to strongly influence wave transmission through discontinuities. Some practical results useful for predicting the performance of typical pipe isolators (in vacuo) were also obtained.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 1980
- Bibcode:
- 1980STIN...8127381F
- Keywords:
-
- Cylindrical Shells;
- Discontinuity;
- Walls;
- Wave Propagation;
- Fourier Analysis;
- Pipes (Tubes);
- Stress Waves;
- Transmission Loss;
- Vibration Damping;
- Communications and Radar