Nonlinear Dynamics of Structures Excited by Flows
Relatively simple mechanical vibrating systems interacting with a one-dimensional uniform flowing medium are studied. The flow pattern around such a mechanical system may become asymmetric with respect to a reference axis fixed to the system, leading to unstability of the equilibrium position of the system. The corresponding dynamical behaviour for mechanical systems with one, two or an infinite number of degrees of freedom is analysed by using quasi-steady modeling.The relevance of the study for understanding practical problems is indicated.
KeywordsLift Force Flowing Medium Fluid Force Vertical Oscillation Double Pendulum
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