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nonlinear parametric vibration of a fluid conveying pipe

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Active Vibration Control Of Pipes Conveying Fluid

The pipes vibration control problems are still open. Therefore, the proposed research will focus on active control problems of pinned at both ends of pipes conveying fluid vibrations. 2.SYSTEM DYNAMIC The equation of motion for the transverse vibration of the pipe is given as:Maintaining the Integrity of the Specifications: High-Accuracy Approach for Thermomechanical Vibration Bidgoli, M. R., Karimi, M. S. and Arani, A. G. [2016] Nonlinear vibration and instability analysis of functionally graded CNT-reinforced cylindrical shells conveying viscous fluid resting on orthotropic Pasternak medium, Mechanics of Advanced Materials and Structures 23, 819831. ISI, Google Scholar

Li QIAN Northwestern Polytechnical University, Xian

In this paper, the nonlinear parametric vibration of fluid-conveying pipes flexibly restrained at both ends and subjected to the pulsation flow excitation is investigated. NONLINEAR DYNAMIC RESPONSE OF A FLUID- perturbation as the control parameters. Nonlinear vibration of a fluid-conveying pipe subjected to a transverse external har-monic excitation was investigated by Zhang et al. (2016) in the case with internal resonance. In the supercritical regime, the subharmonic, superharmonic, and combination resonances NONLINEAR DYNAMIC RESPONSE OF A FLUID- perturbation as the control parameters. Nonlinear vibration of a fluid-conveying pipe subjected to a transverse external har-monic excitation was investigated by Zhang et al. (2016) in the case with internal resonance. In the supercritical regime, the subharmonic, superharmonic, and combination resonances

Nonlinear Out-of-Plane Vibration of a Curved Pipe Due to

A great deal of study has been done on the dynamics of straight pipes conveying fluid. Relatively less effort has been directed towards the examination of the dynamics of curved pipes. In this paper, out-of-plane vibrations of a curved pipe due to the pulsating fluid flow are examined. The pipe is hanging horizontally and is supported at both ends. Nonlinear Out-of-Plane Vibration of a Curved Pipe Due to A great deal of study has been done on the dynamics of straight pipes conveying fluid. Relatively less effort has been directed towards the examination of the dynamics of curved pipes. In this paper, out-of-plane vibrations of a curved pipe due to the pulsating fluid flow are examined. The pipe is hanging horizontally and is supported at both ends. Nonlinear vibration control of a cantilevered fluid Oct 31, 2018 · Different from the both-end supported pipe conveying fluid as a conservative system, the cantilevered fluid-transporting pipe is a non-conservative system and its dynamic behavior is more complex with flutter instabilities when the flow velocity is beyond the critical value. Indeed, controlling such a flutter system is always challenging in engineering applications.

Nonlinear vibration effects on the fatigue life of fluid

Fatigue is inevitable in pipes conveying fluid due to unwanted vibration. Internal resonance occurs in such pipes due to pre-pressure. For the first time, the effects of vibration on the fatigue Nonlinear vibration isolation for fluid-conveying pipes Apr 15, 2019 · Nonlinear energy sinks have been used to absorb vibrations of fluid-conveying pipes under different excitations, such as periodic external excitation and vortex-induced vibration . Yang, et al. proposed a nonlinear energy sink integrated with a negative stiffness element to enhance passive and adaptive vibration suppression for a pipe conveying Nonlinear vibrations of a cantilevered pipe conveying on the nonlinear analysis of parametric resonance of a planar fluid-conveying cantilevered pipe using four different methods; Centre manifold theory, perturbation method, finite difference method and Increment harmonic balance method to resolve the equation and

Nonlinear vibrations of a cantilevered pipe conveying

on the nonlinear analysis of parametric resonance of a planar fluid-conveying cantilevered pipe using four different methods; Centre manifold theory, perturbation method, finite difference method and Increment harmonic balance method to resolve the equation and Stability and Chaotic Vibrations of a Fluid-Conveying Pipe Abstract. The stability and possible chaotic vibrations of a fluid-conveying pipe with additional combined constraints are investigated. The pipe, restrained by Vibration Suppression of a Nonlinear Fluid-Conveying Pipe In this paper, the vibration suppression mechanism of a nonlinear fluid pipe via nonlinear energy sink (NES) is studied for the first time. The fluid pipe is simply supported under harmonic foundation excitation. The complexification-averaging method combined with the arc-length continuation method is used to predict the response of the system.

Nonlinear vibration isolation for fluid-conveying pipes

Apr 15, 2019 · Nonlinear energy sinks have been used to absorb vibrations of fluid-conveying pipes under different excitations, such as periodic external excitation and vortex-induced vibration . Yang, et al. proposed a nonlinear energy sink integrated with a negative stiffness element to enhance passive and adaptive vibration suppression for a pipe conveying

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