인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The basic aim of the work described here is to suggest a prediction model for sound transmission loss of multi-layered panels based on the infinite panel theory. Since the usual concepts of random or field incidence in the sound transmission loss in these panels often result in a significant discrepancy from the experiments; our particular intention is to examine in detail the angular distribution of incident energy on sound transmission loss in multi-layered panels. As a consequence, our focus is finding a weighting function to represent the directional distribution of incident energy on the wall in an actual test environment. Numerical simulations by using a ray tracing technique are performed. Using the numerical results, the directional distribution of incident energy on the wall can be expressed by the Gaussian distribution in terms of the angle of incidence. This Gaussian function is confirmed from the fact that the compared results between the measurement and the prediction show good agreements for a variety of panel configurations. The main feature of this Gaussian function is that various panel configuration, especially multi-layered panel with and without porous materials in its cavity, can be handled effectively.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-ECN-0101-2015-530-002527813