Nonlinear Vibration Characteristics of a Curved Pipe with Fixed Ends and Steady Internal Flow

정상 상태 내부 유동이 있는 양단 고정 곡선 파이프의 비선형 진동 특성

  • Published : 2002.01.01


The nonlinear differential equations of motion of a fluid conveying curved pipe are derived by use of Hamiltonian approach. The extensible dynamics of curled pipe is based on the Euler-Bernoulli beam theory. Some significant differences between linear and nonlinear equations and the dynamic characteristics are discussed. Generally, it can be shown that the natural frequencies in curved pipes are changed with flow velocity. Linearized natural frequencies of nonlinear equations are slightly different from those of linear equations.


Pipe Conveying Fluid;Plow-induced Vibration;Natural Frequency;Nonlinear Equations of Motion;Steady Plow


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