Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Effect of viscous Damping on the Stability of Beam Resting on an Elastic Foundation Subjected to Dry friction force

점성감쇠가 건성마찰력을 받는 탄성지지 보의 안정성에 미치는 효과

  • 장탁순 (충남대학교 대학원 기계공학과) ;
  • 고준빈 (한밭대학교 기계설계공학과) ;
  • 류시웅 (한국기초과학지원연구원 제작지원팀)
  • Published : 2004.11.01
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Abstract

The effect of viscous damping on stability of beam resting on an elastic foundation subjected to a dry friction force is analytically studied. The beam resting on an elastic foundation subjected to dry friction force is modeled for simplicity into a beam resting on Kelvin-Voigt type foundation subjected to distributed follower load. In particular, the effects of four boundary conditions (clamped-free, clamped-pinned, pinned-pinned, clamped-clamped) on the system stability are considered. The critical value and instability type of columns on the elastic foundation subjected to a distributed follower load is investigated by means of finite element method for four boundary conditions. The elastic foundation modulus, viscous damping coefficient and boundary conditions affect greatly both the instability type and critical load. Also, the increase of damping coefficient raises the critical flutter load (stabilizing effect) but reduces the critical divergence load (destabilizing effect).

Keywords

References

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