𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sound source for scale model measurements of traffic noise

✍ Scribed by Josef Novák

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
463 KB
Volume
24
Category
Article
ISSN
0003-682X

No coin nor oath required. For personal study only.

✦ Synopsis

This paper dealt with the problem of the prmctples and destgn of sound source for scale model predlctton techmques of road traffic norse levels The possible physwal concepttons of norse field modehng are dzscus~ed, and the mam required radtatton charactertstws of scale model source are gwen In the Research Institute of Sound and Ptcture, Prague, the pneumatw point source~ based on the principle of alr jet~ leadmg mto central cavtty were chosen The de~tgn of Ill the important parts of source from the pomt of view o f frequency responve and radtatton charactert~ttcs m vertwal and hortzontal planer ts de~crtbed The sources were destgned for the scale 1/50

📜 SIMILAR VOLUMES

Scale model experiments for the predicti
Scale model experiments for the prediction of road traffic noise and the design of noise control facilities
✍ Mitsuyasu Yamashita; Kohei Yamamoto 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 750 KB

## A BSTRA CT A method of scale model experiments for traffic noise prediction and design of traffic noise control facilities was developed. The scale model experiment technique may be useful to clarify complex factors, to verify theory and, fiwthermore, to formulate noise prediction. Two methods

A method for the determination of a dist
A method for the determination of a distributed FET noise model based on matched-source noise-figure measurements
✍ M. C. Maya; A. Lázaro; L. Pradell 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 131 KB 👁 1 views

## Abstract A new method for the determination of a distributed FET noise model is presented. It is based on the extraction of the intrinsic noise‐correlation matrix of an elemental section of the device from the device's noise figure, measured for only one source‐impedance state at a number of fre

Computer simulation model for the predic
Computer simulation model for the prediction of traffic noise levels
✍ I.S. Diggory; B. Oakes 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 462 KB

This paper describes a computer simulation model capable of predicting the noise levels generated by traffic passing through road intersections controlled by roundabouts where departures from free-flow traffic conditions occur. The model depends Jbr its operation on the acoustical and flow character

IMPROVED METHOD FOR SELECTING SCALE FACT
IMPROVED METHOD FOR SELECTING SCALE FACTORS AND MODEL MATERIALS FOR SCALE MODELLING OF OUTDOOR SOUND PROPAGATION
✍ T.A. BUSCH; M.R. HODGSON 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 214 KB

Critical to the development of an acoustical scale model to be used to measure the e!ectiveness of roadside noise barriers is the selection of both a model scale and materials with which to construct the scale model. Previous work on acoustical scale modelling has typically proceeded by "rst selecti

Scale model experiments on noise reducti
Scale model experiments on noise reduction by acoustic barrier of a straight line source
✍ Masaru Koyasu; Mitsuyasu Yamashita 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 361 KB

Noise reduction by an acoustic barrier of a straight line source is examined with the aid of scale model experiments. The line source used in these experiments is an incoherent line source mechanically radiating broad band noise. From the experimental results a curve can be deduced which shows a rel