소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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종동력을 받는 원통셸의 동적 안정성에 관한 연구

Dynamic Stability of Cylindrical Shells Subjected to Follower Forces

  • 김현순 (서울대학교 대학원 항공우주공학과) ;
  • 김지환 (서울대학교 공과대학 항공우주공학과)
  • 발행 : 1998.04.01
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초록

The dynamic instability of cylindrical shell with clamped-free boundary condition subjected to constant follower force or $P_0 + P_1cos {\Omega}_t$ type pulsating follower force is analyzed. The motion of shell is modeled using the shell theory considering rotary inertia and shear deformation, and analyzed with finite element method. In case of constant follower force, the changes of eigenvalues dependent on the magnitude of applied load are investigated and the critical loads are obtained. In case pulsating follower force, instability regions of exicitation frequency are obtained by modal transform with right and left modal matrix and by multiple scales method. The effects of thickness ratio and aspect ratio on the instability of shell are studied.

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참고문헌

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