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    국내학술지 제목 게시판 내용
    제목(국문) 밀폐된 용기 안에서 동시에 회전하는 디스크의 진동과 안정성에 관한 연구
    제목(영문) Vibrations and Stability of Flexible Corotating Disks In an Enclosure
    저자 강남철 (Namcheol Kang ,경북대학교 ) ▷공저자 네트워크 보기
    초록 The vibration and stability of thin, flexible corotating disks in an enclosed compressible fluid is
    investigated analytically and compared with the results of a single rotating disk. The discretized
    dynamical system of the corotating disks is derived in the compact form of a classical gyroscopic
    system similar with a single disk. For the undamped system, coupled structure-acoustic traveling
    waves destabilize through mode coalescence leading to flutter instability. However, it is found that the
    flutter regions of the corotating disks are wider than those of a single disk. A detailed investigation
    of the effects of dissipation arising from acoustic or disk damping is also performed. Finally, in the
    presence of both acoustic and disk dampings, the instability regions are found and compared with
    those of a single disk. Although this study does not allow a radial clearance between the disk and the
    enclosure, the computational frame work of the problem can be expanded to the system having the
    radial clearance in an enclosure.
    keyword Rotating Disk(회전 원판), Corotating Disks(동방향 회전 원판), Flutter(플러터), Acoustic structure Interaction(음향-구조 상호작용), Mode Coalescence(모드 합체)
    저널명 한국소음진동공학회논문집 ▷관련저널보기
    VOL 19
    PAGE 76-84
    발표년도 2009
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