A Study on Design of Periodically Folded Barrier by BEM and Scale Model Test

경계요소법과 축소모형실험을 이용한 주기적 구조를 갖는 굴절형방음벽의 설계에 관한 연구

This study is aimed to compare the insertion losses of periodically folded barriers which have same folded width, depth and period of arrangement but different direction of arrangement. One is vortical to the roadside and another is parallel. The pressure levels and the insertion losses at the receiving points behind finite length barriers are measured in an anechoic room by scale model test. The measured insertion losses are compared with calculated insertion losses by 3D BEM models.