Abstract
In this paper, the nonlinear dynamics of a curved pipe is investigated in the case of principal parametric resonance due to pulsating flow and impact with loose supports. The coupled in-plane and out-of-plane governing equations with the consideration of von Karman geometric nonlinearity are presented and discretized via the differential quadrature method (DQM). The nonlinear dynamic responses are calculated numerically to demonstrate the influence of pulsating frequency. Finally, the impact is taken into consideration. The influence of clearance on fretting-wear damage, such as normal work rate, contact ratio and impact force level, is demonstrated.
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Luo, Y., Tang, M., Ni, Q. et al. Nonlinear Vibration of a Loosely Supported Curved Pipe Conveying Pulsating Fluid under Principal Parametric Resonance. Acta Mech. Solida Sin. 29, 468–478 (2016). https://doi.org/10.1016/S0894-9166(16)30265-8
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DOI: https://doi.org/10.1016/S0894-9166(16)30265-8