• No results found

Sound radiation from a perforated unbaffled plate

N/A
N/A
Info
Download
Protected

Academic year: 2020

Share "Sound radiation from a perforated unbaffled plate"

Copied!
6
0
0

Loading.... (view fulltext now)

Download now ( 6 Page )

Full text

Loading

Figure

Figure 1.-A perforated unbaffled plate
Figure 2.- Modal and average radiation efficiency of an unbaffled perforated plate d =10 mm, oτ = 40 %: — modal radiation efficiency, ─average radiation efficiency
Figure 3.-Effect of perforation on sound power radiation of a perforated unbaffled plate (a) d =10 mm: o—τ = 10 %, − −τ = 20 %, ---τ = 40 %, − · −τ = 60 % and (b) τ = 20 %: —d =50 mm, o− −d =20 mm, ---od =5 mm, o− · −d =2 mm
Figure 5.-Comparison of the radiation index ( (a) d—) with measured data (−□−): =5.6 mm, oτ = 5.7 %; (b) d =7.1 mm, oτ = 9.4 %; (c) d =8.8 mm, oτ = 14.1 %; (d) d =15 mm, oτ = 41.5 %

References

Download now ( PDF - 6 Page - 246.99 KB )

Related documents

ANNUAL SUMMARY OF VITAL STATISTICS—1969

Geographically the decline in infant mor- tality was seen in most states ( Table III), 39 reporting lower provisional rates in 1969. and 11 showing an increase over

WEEDS AS A SOURCE OF MEDICINES FOR THE DESCENDANTS OF ALEXANDER THE GREAT IN KALASH VALLEY, DISTRICT CHITRAL, HINDUKUSH RANGE, PAKISTAN

Weed diversity with special reference to their ethnomedicinal uses in wheat and maize at Rech valley, Hindukush Range, Chitral, Pakistan. Murad

Validity and reliability of a portable gait analysis system for measuring spatiotemporal gait characteristics: comparison to an instrumented treadmill

The purpose of this study was to assess the validity of a body-worn inertial sensor system (RehaGait®) for measuring spatiotemporal gait characteristics compared to a

PRIX DE CONFÉRENCE ACIO/CANO EN PRATIQUE CLINIQUE 2014 : Données préliminaires sur l’expérience vécue de diagnostics successifs de cancer primitif

Le fait d’avoir dépassé la barre des 5 ans marquant la « guérison » lorsqu’ils ont été diagnostiqués d’un autre cancer était particulièrement bouleversant pour les

Heterologous expression of abaecin peptide from Apis mellifera in Pichia pastoris

Keywords: Abaecin, Proline‑rich antimicrobial peptide, Heterologous expression, Pichia pastoris, Apis mellifera.. © The

The effect of cosmic ray intensity variations and geomagnetic disturbances on the physiological state of aviators

The Pearson r-coefficients were calculated and the Analysis of Variance (ANOVA) method was applied to establish the statistical significance levels (p- values) of the effect

Most Common DMVPN Troubleshooting Solutions

When DMVPN is not working, before troubleshooting with IPsec, verify that the GRE tunnels are working fine without IPsec encryption. For more information, refer to Configure the