Analysis of Acoustic Characteristics and Shooting Noise Prediction for Shooting Range Soundproofing in Military

Abstract

The shooting noise caused by shooting training, which has strength and impacts, is becoming a serious damage to the residents around the shooting range and, consequently, the number of civil appeals against the shooting noise is on the constant increase. For this reason, the military examines the effects of the shooting noise at the stage of design in constructing a shooting range and tries to build a soundproof shooting range to minimize civil appeals. However, the lack of research and data concerning propagation and attenuation, both of which characterize the shooting noise from within a soundproof shooting range, even makes it so difficult to design a soundproof shooting range in constructing it. So this study used an acoustic simulation in a soundproof shooting range to identify acoustic and propagation characteristics within the shooting range and, on this basis, predicted the noise level at an exit of the soundproof shooting range. As a result, if the form and specifications of a soundproof shooting range were decided on at the stage of design, it was possible to use a simulation to design a soundproof shooting range with optimized acoustic performance and, on this basis, to predict a sound pressure level at an exit of the soundproof shooting range. On the basis of these data, it is probably possible to determine the degree of the effects of the shooting noise on the villages around a shooting range and the extent of damage to it and to minimize civil appeals against the shooting noise and resolve the issues of compensation and agreement with ease. This study is expected to provide useful data for designing and constructing a similar soundproof shooting range.

A Muffler with Ventilation Holes for a 40 mm Medium Caliber Gun

“…최근에는 상당히 큰 소음기가 포구의 반동 시스템 및 기동성 등에 제약을 준다고 판단하여, 포 주변에 차폐 구조물을 만들어 소음을 저감하는 연구를 수행하고 있다 [5] . 국내에 서는 소구경 화기를 대상으로 한 실험적 방법을 중심으로 소음기 연구가 일부 시도 되었으며 사격장 밖으로의 소음의 전파를 효과적 으로 차단시키기 위한 방음시설에 대한 연구가 수행되었다 [6][7][8][9] . 지 금까지의 국내외 연구에서는 주로 배플 형태의 사일런서, 물분사 또는 차폐 구조물 등에 대한 연구를 수행해 왔다.…”