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초기 비틀림각을 갖는 회전하는 비균일 복합재료 박판보 블레이드의 진동 특성해석 원문보기
Vibration Analysis of Rotating Composite Thin-Walled Pretwisted Beam with Non-uniform Cross Section

  • 저자

    임성남

  • 학위수여기관

    고려대학교 대학원

  • 학위구분

    국내석사

  • 학과

    기계공학과

  • 지도교수

  • 발행년도

    2004

  • 총페이지

    ⅹ, 58p.

  • 키워드

    비틀림각 복합재료 박판보 블레이드;

  • 언어

    kor

  • 원문 URL

    http://www.riss.kr/link?id=T10072000&outLink=K  

  • 초록

    This paper addresses the control of free and dynamic response of composite rotating pretwisted fan blade modeled as non-uniform thin-walled beam fixed at the certain presetting angle and incorporating piezoelectric induced damping capabilities. A distributed piezoelectric actuator pair is used to suppress the vibrations caused by external disturbances. The blade model incorporates non-uniform features such as transverse shear and includes the centrifugal and Coriolis force field. A velocity feedback control law relating the piezoelectiriccally induced transversal bending moment at the beam tip with the appropriately selected kinematical response quantity is used and the beneficial effects upon the closed loop eigenvibration and dynamic characteristics of the fan blade are highlighted.


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