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  • RecurDyn (리커다인)
  • 국내학술지

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    국내학술지 제목 게시판 내용
    제목(국문) 다공패널형 공명기의 흡음성능에 관한 연구
    제목(영문) A Study on the Absorption Performance of a Perforated Panel type of Resonator
    저자 송화영 (Hwa-Young Song ,서울산업대학교 에너지환경대학원 에너지시스템공학과 ) ▷공저자네트워크등록하기
    양윤상 (Yoon-Sang Yang ,서울과학기술대학교 에너지 시스템공학과 ) ▷공저자네트워크등록하기
    이동훈 (Dong—Hoon Lee ,서울과학기술대학교 기계 • 자동차공학과 ) ▷공저자네트워크등록하기
    초록
    초록(영문)

    When aiming to reduce the low frequency noise of a subway guest room through sound absorbing treatment methods inside the wall of a tunnel the resonator is often more effective than a porous sound absorbing material. Therefore, the perforated panel type resonator embedded with a perforated panel is proposed. The perforated panel is installed in the neck, which is then extended into the resonator cavity so that it can ensure useful volume. The absorption performance of the perforated panel type of resonator is obtained by acoustic analysis and experiment. The analytical results are in good agreemen1 with the experimental results. In the case of multiple perforated panel type resonators, as the number of perforated panels increase, the I st resonance frequency is moved to a low frequency band and sound absorption bandwidth is extended on the whole. In order to obtain excellent absorption performance, the impedance matching between multi-panels should be considered. When the perforated panel in the resonator is combined with a porous material, the absorption performance is highly enhanced in the anti-resonance and high frequency range. In case of the resonator inserted with perforated panels of 2, the 2nd resonance frequency is shifted to a low frequency band in proportion to the distance between perforated panels 

    keyword Resonator(공명기), Absorption coefficient(흡음계수), Perforated panel(다공 패널), Impedance(임피던스)
    저널명 설비공학 논문집 ▷관련저널보기
    VOL 28
    PAGE 0224
    발표년도 2016
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