Useful approximation formulae for radiation impedance are given for the reflection coefficients of both infinitely flanged and unflanged rigid-walled cylindrical ducts. The expressions guarantee that simple but necessary physical and mathematical principles are met, like Hermitian symmetry for the r
The vibroacoustics of slightly distorted cylindrical shells: A model of the acoustic input impedance
✍ Scribed by R. Picó; F. Gautier
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 876 KB
- Volume
- 302
- Category
- Article
- ISSN
- 0022-460X
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract We propose an analytical model for the determination of the electrical characteristics (resonant frequency, input impedance) of probe‐fed printed antennas with radiating element of various form. This model is original and is easily included in CAD system. The theoretical results are in
By using the model of an aircraft fuselage discussed in Part \(\mathrm{I}\), an analysis is presented which demonstrates that the total acoustic potential energy \(\left(E_{p}\right)\) within the cylindrical model is minimized by a unique vector of secondary force inputs. Similar analysis is used to