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Vibration control of a pipe conveying fluid under external

Vibration Characteristics of Fluid-Conveying Pipes Vibration control of a pipe conveying fluid under external

: 16 1396 : 14 1396 : 16 1696 Vibration control of a pipe conveying fluid under external (PDF) A THEORETICAL STUDY INTO THE VIBRATION Vibration control of a pipe conveying fluid under external This research investigates the effect of end conditions on the vibration characteristics of a pipe conveying fluid with different cross sections such as (sudden enlargement and sudden contraction). Several end pipe supports (flexible, simply and

A Hybrid Method for Transverse Vibration of Multi-Span Vibration control of a pipe conveying fluid under external

Then, a comparative study is performed to investigate the effects of fluid velocity, volume fraction laws and internal damping on transverse vibration and stability of the FGM pipes conveying fluid. The results demonstrate that the present method has high precision in dynamic analysis of multi-span pipes conveying fluid.A comparative study on optimization of multiple Vibration control of a pipe conveying fluid under external In recent years, nonlinear energy sinks (NES) have been recognized as a promising method for passive vibration control of pipes conveying fluid due to their advantages over the classic tuned mass damper (TMD). Nevertheless, it has been shown that their performance is highly sensitive to uncertainties, and they are only effective in a narrow range of flow velocities and external excitations.

Ali Ebrahimi-Mamaghani - Google Scholar

Vibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink AE Mamaghani, SE Khadem, S Bab Nonlinear Dynamics 86 (3), 1761-1795 , 2016Ali Ebrahimi-Mamaghani - Postdoctoral Researcher Vibration control of a pipe conveying fluid under external Vibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink Nonlinear Dynamics November 1, 2016 This paper investigates the effects of a smooth nonlinear energy sink (NES) on the vibration suppression of a fixed-fixed pipe conveying fluid under excitation of an external harmonic load.

An approximate method for pipes conveying fluid with Vibration control of a pipe conveying fluid under external

The pipe conveying fluid is widespread in many fields. It plays a key role in the petroleum transportation, the fuel feeding for all kinds of engines, the chemical processing and so on. Theoretically, it is a typical gyroscopic system subjected to the Coriolis force in the lateral direction and the investigation on it bloomed after word-war II Vibration control of a pipe conveying fluid under external Cited by 76Publish Year 2016Author Ali Ebrahimi Mamaghani, S. E. Khadem, Saeed BabEstimated Reading Time 12 minsActive Vibration Control Of Pipes Conveying Fluid Using Vibration control of a pipe conveying fluid under external focused on pipes conveying fluid vibration control problem under steady flow. 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

Coupled Bi-FlexuralTorsional Vibration of Fluid-Conveying Vibration control of a pipe conveying fluid under external

Y. D. Li and Y. R. Yang, Nonlinear vibration of slightly curved pipe with conveying pulsating fluid, Nonlinear Dyn. 88 (4) (2017) 25132529. Crossref, Google Scholar; 29. Y. Tang, Y. X. Zhen and B. Fang, Nonlinear vibration analysis of a fractional dynamic model for the viscoelastic pipe conveying fluid, Appl. Math. Model. 56 (2018) 123136.Dynamic response and vibration suppression of a Vibration control of a pipe conveying fluid under external Mar 25, 2019Abstract. A feedforward vibration suppression method is proposed for cantilever pipes conveying fluid. The fluidstructure interaction dynamic equation of the cantilever pipeline system is first established, based on the EulerBernoulli beam model. Next, the pulsation function of pipeline pressure is established using the Fourier series, which will serve as the input of the cantilever pipeline system.

Dynamic response and vibration suppression of a Vibration control of a pipe conveying fluid under external

Mar 25, 2019Mamaghani, AE, Khadem, SE, Bab, S (2016) Vibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink. Nonlinear Dynamics 86(3) 1761 1795. . Google Scholar CrossrefDynamical stability of cantilevered pipe conveying fluid Vibration control of a pipe conveying fluid under external Translate this pageWhen the velocity of fluid flow in a cantilevered pipe is successively increased, the system may become unstable and flutter instability would occur at a critical flow velocity. This paper is concerned with exploring the dynamical stability of a cantilevered fluid-conveying pipe with an additional linear dynamic vibration absorber (DVA) attachment.

Experimental Investigation and Optimization Design of Vibration control of a pipe conveying fluid under external

Jan 09, 2021A E Mamaghani, S E Khadem. Vibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink. Nonlinear Dynamics, 2016, 86(3) 1761-1795. MATH Article Google Scholar [5] Q Chai, J Zeng, H Ma, et al.Flow-Induced Vibration Analysis of Supported Pipes Vibration control of a pipe conveying fluid under external Sep 21, 2010Considering the effect of the internal and external fluids, the three-dimensional nonlinear differential equations of a fluid-conveying pipe undergoing overall motions were derived based on Kanes equation and the Ritz method . Moreover, the time histories for the displacements were obtained using the incremental harmonic balance method.

Flow-Induced Vibration Analysis of Supported Pipes Vibration control of a pipe conveying fluid under external

vibration for periodic pipe system conveying uid using the transfer matrix method. These methods have proved to be eective in analyzing ow-induced vibration of certain pipes. It is well known that analysis of pipe dynamics could be conducted based on the energy-based approach according to Hamiltonian principle 18, 19 . However, theseFluid-Induced Vibration Elimination of a Rotor/Seal System Vibration control of a pipe conveying fluid under external Mamaghani et al. presented the NESs to control the vibration of the pipe conveying the fluid under the external periodic excitation. Ebrahimzade et al. [ 18 ] investigated the stability properties and nonlinear behaviours of the wing model attached with the DVA and NES.

Hopf Bifurcation Phenomena in Tubes Carrying a Fluid Vibration control of a pipe conveying fluid under external

Jul 12, 2006(2020) Stabilization of a flexible pipe conveying fluid with an active boundary control method. Journal of Vibration and Control 26 :19-20, 1824-1834. (2020) Nonlinear Reant Responses, Mode Interactions, and Multitime Periodic and Chaotic Oscillations of a Cantilevered Pipe Conveying Pulsating Fluid under External Harmonic Force.Images of Vibration control of a pipe conveying fluid under e imagesVibration and Snapthrough of Fluid-Conveying Graphene Vibration control of a pipe conveying fluid under external Jul 14, 2021There exists complex fluidstructure coupling vibration in the fluid-conveying pipes under the combined actions of internal flow and external loads in the aircraft.

Internal Fluid Flow Induced Vibration of Pipes

Vibration of exposed pipe sections or systems due to external and/or internal fluid flow has been a common place in industrial plants and pipelines. It is common to use the vibration of piping systems as a quick check that a plant is operational by listening for the humming sound or by placing a hand on a pipe for the vibration feel.International Journal of Energy and Environment (IJEE)3. Control of natural system frequencies and elusion reance under the influence of external excitations. 4. Decreasing the system response through adding an assistant mass neutralizer or a vibration absorber. Therefore, various researchers investigation the effect of flow fluid induced pipe on vibration and control

Nonlinear Free Vibration of Spinning Viscoelastic Pipes Vibration control of a pipe conveying fluid under external

Drill strings are one of the most significant rotor components employed in oil and gas exploitation. In this paper, an improved dynamical model of drill-string-like pipes conveying fluid is developed by taking into account the axial spin, fluidstructure interaction (FSI), damping as Nonlinear Parametric Vibration of a Fluid-Conveying Pipe Vibration control of a pipe conveying fluid under external Oct 10, 2019The lateral vibrations are dominant in the dynamic characteristics of pipes conveying fluid, so the effects of longitudinal inertia are negligible. Sliding is axially restrained at both ends of the pipe. K_L and K_R are the transverse spring stiffness coefficients at

Nonlinear Reant Responses, Mode Interactions, and Vibration control of a pipe conveying fluid under external

Aug 28, 2020One of the main reas for the nonlinear vibrations of the pipes conveying pulsating fluid is the time-varying flow speed and external harmonic excitation. Pulsating flow due to the pump operation can cause a parametric excitation loading in the pipes conveying fluid.Nonlinear Reant Responses, Mode Interactions, and Vibration control of a pipe conveying fluid under external Nonlinear Reant Responses, Mode Interactions, and Multitime Periodic and Chaotic Oscillations of a Cantilevered Pipe Conveying Pulsating Fluid under External Harmonic Force Complexity 10.1155/2020/9840860

Nonlinear Vibration of A Loosely Supported Curved Pipe Vibration control of a pipe conveying fluid under external

In engineering applications, fluid-conveying pipes usually have geometric imperfections or initially curved configurations. Unlike the initially curved pipe supported at both ends, a slightly curved cantilevered pipe is capable of displaying some interesting behavior because it is a nonconservative system of fluid-structure interactions.Nonplanar Vibration of a Vertical Fluid-Conveying Pipe Vibration control of a pipe conveying fluid under external Apr 29, 2014Nonlinear and nonplanar lateral vibration of a self-excited vertical cantilevered pipe conveying fluid is studied for the case that the upper end of the pipe is periodically excited in the horizontal direction.

Overview of Mechanics of Pipes Conveying FluidsPart I Vibration control of a pipe conveying fluid under external

The dynamic and stability behaviors of pinned-pinned, clamped-clamped, and cantilevered pipes conveying fluid together with curved and articulated pipes will be discussed. Other problems such as pipes made of viscoelastic materials and active control of severe pipe vibrations are considered.Passive Suppression of Panel Flutter Using a Nonlinear Vibration control of a pipe conveying fluid under external Since then, the NES had been applied to suppress the vibration of many structures, including rods , beams [19, 20], plates [21, 22] and fluid-conveying pipes . Recently, Lee et al. demonstrated that the NES can improve the stability of the aeroelastic system of a two-dimensional (2D) wing by experiments and theoretical analysis.

flow-induced vibration fatigueflow-induced vibrationflow-induced vibration fatigue jet engineflow induced vibration in pipeflow induced vibration pdfflow induced pulsationDynamical stability of cantilevered pipe conveying fluid Vibration control of a pipe conveying fluid under external

[28] A. E. Mamaghani, S. Khadem, S. Bab, Vibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink, Nonlinear Dynamics, Vol. 86, No. 3, Saeed Bab - Research Faculty - Niroo Research Institute Vibration control of a pipe conveying fluid under external A.E. Mamaghani, S.E. Khadem, S. Bab, Vibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink, Nonlinear Dynamics 86(3)

The effect of two-parameter of Pasternak foundations on Vibration control of a pipe conveying fluid under external

Nov 01, 2014In this paper, the dynamics and stability of multi-span pipe conveying fluid embedded in Pasternak foundation is studied. Based on Euler-Bernoulli beam theory, the dynamics of multi-span pipe conveying fluid embedded in two parameters Pasternak foundation is analyzed. The dynamic stiffness method (DSM) is used to solve the control equation.Title Postdoctoral Researcher at Location Iran500+ connectionsInfluence of Support Stiffness on Dynamic Characteristics Vibration control of a pipe conveying fluid under external The basic vibration generated during the tunneling process of hard rock tunnel results in the change of the support stiffness of the hydraulic pipe, which causes the problem of reduction of pipe transmission efficiency. A transverse motion equation of the hydraulic pipe was established by correlating with Hamilton’s principle under basic vibration. In consideration of the fluid Vibration control of a pipe conveying fluid under external

Title Research Faculty at Niroo Location Tehran, IranConnections 32Some results are removed in response to a notice of local law requirement. For more information, please see here.Ultra-thin Piezoelectric Lattice for Vibration Suppression Vibration control of a pipe conveying fluid under external

Jul 03, 2020The compari with previous literature shows that this ultra-compact device provides a new solution for vibration and noise control in long-distance fluid-conveying pipe systems. In this paper, an electrically active, ultra-thin, easy-to-implement, and tunable phononic crystal (PC)-based device is proposed to suppress excessive vibr

Vibration Suppression of a Nonlinear Fluid-Conveying Pipe Vibration control of a pipe conveying fluid under external

Abstract. 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.Vibration analysis of post-buckled fluid-conveying Vibration control of a pipe conveying fluid under external Mar 01, 2021Monitoring the control parameters and using the active control approach are recommended to get rid of the excessive vibration and defeat due to large motions of pipes conveying fluid. The nonlinear free vibration of a fractional dynamic model for the viscoelastic pipe conveying fluid was investigated in [32] .

Vibration control of a pipe conveying fluid under external Vibration control of a pipe conveying fluid under external

Aug 06, 2016The majority of researches proposed the active vibration control of pipe conveying fluid for vibration suppression and preventing system failure due to fatigue. The active controllers make a closed loop system and detect the variations of parameters employing different sensors [ 8 , 9 ].Vibration mitigation of a pipe conveying fluid with a Vibration control of a pipe conveying fluid under external In addition, the vibration control for fluidstructure interaction systems such as pipes conveying fluid is rarely reported [37, 38], which mainly concerned on suppressing transient oscillations of the both-end supported pipe as a conservation system. With regard to controlling vibrations of the cantilevered fluid-conveying pipe as a non-conservative system, a paucity of research work was addressed, especially for controlling

Vibration suppression of a rotating flexible cantilever Vibration control of a pipe conveying fluid under external

Rathi and Khan (2012) used active vibration control and smart structure to reduce the vibration of a system by automatic modification of the system structural response. In this paper an adaptive-robust control technique is proposed to suppress the vibration of a rotating cantilever pipe conveying fluid saeed bab - Google ScholarVibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink AE Mamaghani, SE Khadem, S Bab Nonlinear Dynamics 86 (3), 1761-1795 , 2016

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