• 제목/요약/키워드: 다기능성구조물

검색결과 1건 처리시간 0.015초

자기장 및 열하중을 받는 복합재료 원통셸의 진동 및 안정성해석 (Vibration and Stability of Composite Cylindrical Shells Subjected to Electromagnetic and Thermal Fields)

  • 박상윤;강성환;서정석;송오섭
    • 한국소음진동공학회논문집
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    • 제23권9호
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    • pp.797-805
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    • 2013
  • In this paper vibration and stability analysis of laminated composite shells based on the first order shear deformation theory(FSDT) for two different boundary conditions(clamped-clamped, simply supported) are performed. Structural model of cross-ply symmetric laminated composite cylindrical shells subjected to a combination of magnetic and thermal fields is developed via Hamilton's variational principle. These coupled equations of motion are based on the electromagnetic equations(Faraday, Ampere, Ohm, and Lorenz equations)and thermal equations which are involved in constitutive equations. Extended Galerkin method is adopted to obtain the discretized equations of motion. Variations of dynamic characteristics of composite shells with applied magnetic field, temperature gradient, laminate thickness-ratio and radius ratio for two boundary conditions are investigated and pertinent conclusions are derived.