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
This paper presents a basic experimental study on the evaluation method for determining the equivalent acoustic impedance of an arbitrary material flat plate. The study applies an inversion method based on the complex sound speed of the acoustic material, utilizing reflectivity measurement results. To achieve this, an equation for calculating reflectivity which incorporates the equivalent acoustic impedance of the flat plate and the acoustic impedance of the contacting media, was adopted. A procedure for inverting the equivalent acoustic impedance of the plate was developed by numerically solving this equation, incorporating the reflectivity measurement results. Additionally, the validity of the method was assessed through a series of reflectivity measurements conducted for an acrylic flat plate in a simple water tank, using an omni-directional acoustic source. The equivalent acoustic impedance inversion was then performed based on the measurement data. The results demonstrate that the inversion method for determining the equivalent acoustic impedance of an arbitrary material flat plate, using reflectivity measurements, can be effectively applied to evaluate the equivalent acoustic impedance of acoustic materials attached to submarine hulls.
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) : I410-151-25-02-091245250