𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A design criterion for sound-absorbent lining of an anechoic chamber

✍ Scribed by W.A. Davern


Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
84 KB
Volume
5
Category
Article
ISSN
0003-682X

No coin nor oath required. For personal study only.

✦ Synopsis


The usual criterion of 10 % or less pressure reflection for lining materials of anechoic chambers is related to the real and imaginary parts of the specific acoustic impedance ratio, allowing some more direct relationship between the acoustic and physical properties of the lining material.


πŸ“œ SIMILAR VOLUMES


Global analysis and realization of a wid
✍ P. Poey; D. Azevedo; X. Begaud; J. P. Daniel; G. Le Ray πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 127 KB

## Abstract A dual‐polarized array operating in the 250–500‐MHz frequency range is analyzed and realized for RCS measurements in an anechoic chamber. The elementary dual‐polarized source is presented, and then the array is completely analyzed with a parallel code solver. A comparison between comput

AN APPLICATION OF CHEBYSHEV'S MIN–MAX CR
✍ E. PennestrΔ±̀ πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 179 KB

In this paper an application of the Chebyshev's criterion to the optimal design of the damped dynamic vibration absorber is presented. The results are summarized in ready-to-use computational graphs. The reliability of the proposed method is demonstrated through a comparison of the numerical results

The optimal design of a dynamic absorber
✍ Y.Z. Wang; K.S. Wang πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 533 KB

The optimal absorber design for a randomly excited planar structure is presented in this paper. The Lagrange equations are derived with generalized coordinates. The transfer functions in closed form are obtained thereafter. Based on the band-limited whitenoise excitation, the optimum tuning and damp