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vibration control of a pipe conveying fluid under external

vibration control of a pipe conveying fluid under external

vibration control of a pipe conveying fluid under external

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Vibration control of a pipe conveying fluid under external ...Aug 06, 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. Pipe is modeled using the Euler–Bernoulli beam theory, and the NES has an essentially nonlinear stiffness and a linear damping.

saeed bab - Google Scholar Citations

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 , 2016Vibration control of a pipe conveying fluid under external vibration control of a pipe conveying fluid under externalAug 06, 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. Pipe is modeled using the EulerBernoulli beam theory, and the NES has an essentially nonlinear stiffness and a linear damping.Vibration Suppression of a Nonlinear Fluid-Conveying Pipe vibration control of a pipe conveying fluid under externalAbstract. 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.

Thermoelastic vibration analysis of micro-scale vibration control of a pipe conveying fluid under external

Main Journal of Central South University Thermoelastic vibration analysis of micro-scale functionally graded material fluid-conveying pipes in.. Journal of Central South University 2019 / 10 Vol. 26; Iss. 10Primary and super-harmonic resonances of Timoshenko May 01, 2020 · A.E. Mamaghani, S. Khadem, S. BabVibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink Nonlinear Dynam., 86 (3) (2016), pp. 1761-1795 CrossRef View Record in Scopus Google ScholarOverview of Mechanics of Pipes Conveying FluidsPart I vibration control of a pipe conveying fluid under externalThe 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.

Nonlinear vibration isolation for fluid-conveying pipes vibration control of a pipe conveying fluid under external

Apr 15, 2019 · Vibration suppression of fluid-conveying pipes has gradually gained attention, with main focus on active control of the pipe vibration , , , and by employing phononic crystal , electromagnetic actuator , and shape memory alloy . Passive control has always been highly regarded in engineering fields owing to its special advantages.International Journal of Energy and Environment (IJEE)experimental techniques to control of pipe structure. Thus, the experimental part included manufacturing of actuators to control on the pipe vibration with various flow parameters effect. In addition investigation analytically and experimentally of dynamic behavior for pipe conveying fluid Hopf Bifurcation Phenomena in Tubes Carrying a Fluid vibration control of a pipe conveying fluid under external(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 Resonant Responses, Mode Interactions, and Multitime Periodic and Chaotic Oscillations of a Cantilevered Pipe Conveying Pulsating Fluid under External Harmonic Force.

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

(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 Resonant Responses, Mode Interactions, and Multitime Periodic and Chaotic Oscillations of a Cantilevered Pipe Conveying Pulsating Fluid under External Harmonic Force.Flow-Induced Vibration Analysis of Supported Pipes vibration control of a pipe conveying fluid under externalConsidering 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 externalConsidering 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, theseDynamical 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, Dynamical stability of cantilevered pipe conveying fluid vibration control of a pipe conveying fluid under externalWhen 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.

Dynamical stability of cantilevered pipe conveying fluid vibration control of a pipe conveying fluid under external

When 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.Dynamic response and vibration suppression of a vibration control of a pipe conveying fluid under externalA feedforward vibration suppression method is proposed for cantilever pipes conveying fluid. The fluidstructure interaction dynamic equation of the cantilever pipeline system is first established, vibration control of a pipe conveying fluid under external Dynamic response and vibration suppression of a cantilevered pipe conveying fluid under periodic excitation - Jiantao Li, Hua Deng, Wenjun Jiang, 2019.Boundary Control of a Marine Riser Pipe Conveying Fluid vibration control of a pipe conveying fluid under externalIn this paper, the model of pipe conveying fluid, like marine risers, is modeled with the effect of the interaction between the fluid and structure. A torque is assumed at one end of the pipe to control the vibration of the pipe. The stability of the pipe under time varying disturbance in forced vibration using boundary control law is proved.

Analysis of Vibration of the Euler-Bernoulli Pipe vibration control of a pipe conveying fluid under external

The dynamic stiffness method and Transfer method is applied to study the vibration characteristics of the Euler-Bernoulli pipe conveying fluid in this paper. According to the dynamics equation of the pipe conveying fluid, the element dynamic stiffness is established. The vibration characteristic of the single-span pipe is analyzed under two kinds of boundary conditions.Ali Ebrahimi-Mamaghani - 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 , 2016Ali EBRAHIMI-MAMAGHANI | PostDoc Position | 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

Active Vibration Control Of Pipes Conveying Fluid Using vibration control of a pipe conveying fluid under external

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 The equation of motion for the transverse vibration of the pipe is given as:Maintaining the Integrity of the Specifications: (1+ = ) ' + 4 4Active Vibration Control Analysis of Cantilever Pipe vibration control of a pipe conveying fluid under externalThe active control of a smart cantilever pipe under free and forced vibration is analyzed at different actuators locations using LQR method of control. The aluminum smart pipe is composed of Five piezoelectric (Lead- Zirconate-Titanate) patches. Three of the piezoelectric patches is used as controlling actuator in different positionA Simple Method to Design and Analyze Dynamic Vibration vibration control of a pipe conveying fluid under externalVibrations due to mechanical excitation and internal and external fluid flow can cause fatigue in pipelines and leaks in fittings. A beam-based dynamic vibration absorber (beam DVA) is a device comprising an L-shaped beam with a concentrated mass at its free end that can be used to absorb and dissipate vibrations in the pipeline. In this paper, a mathematical equation is extracted to design vibration control of a pipe conveying fluid under external

A Simple Method to Design and Analyze Dynamic Vibration vibration control of a pipe conveying fluid under external

Vibrations due to mechanical excitation and internal and external fluid flow can cause fatigue in pipelines and leaks in fittings. A beam-based dynamic vibration absorber (beam DVA) is a device comprising an L-shaped beam with a concentrated mass at its free end that can be used to absorb and dissipate vibrations in the pipeline. In this paper, a mathematical equation is extracted to design vibration control of a pipe conveying fluid under externalVibration suppression of a rotating flexible cantilever vibration control of a pipe conveying fluid under external1043 S. Khajehpour and V. Azadi/ Vibration suppression of a rotating flexible cantilever pipe conveying fluid using piezoelectric layers fluid by Dzhupanov and Markova (2003). The pipe was modeled by a beam restrained at the left end and supported by a special device at the other end.Vibration and control research of pipe penetration piece vibration control of a pipe conveying fluid under externalThe simplest and the most effective method of passive control of pipeline vibration is that put a layer of damping materials on the outer wall of the pipe directly, and it is also called pipe surface damping treatment [20]. 90s of last century, foreign scholars Fang and Lyons have found that there was axial vibration in the fluid-filled pipe vibration control of a pipe conveying fluid under external

Vibration reduction by using the idea of phononic crystals vibration control of a pipe conveying fluid under external

Flexural vibration in a pipe system conveying fluid is studied. The pipe is designed using the idea of the phononic crystals. Using the transfer matrix method, the complex band structure of the flexural wave is calculated to investigate the gap frequency range and the vibration reduction in band gap. Gaps with Bragg scattering mechanism and locally resonant mechanism can exist in a piping vibration control of a pipe conveying fluid under externalSuppression Aeroelastic Instability Using Broadband vibration control of a pipe conveying fluid under externalMay 02, 2012 · Vibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink 6 August 2016 | Nonlinear Dynamics, Vol. 86, No. 3 Performance comparison of linear and nonlinear vibration absorbers in aeroelastic characteristics of a wing modelOptimal modal vibration suppression of a fluid-conveying vibration control of a pipe conveying fluid under externalThis study deals with the divergence characteristics of pipes conveying fluid and explores the applicability of active modal vibration control for suppressing the associated excessive structural vibration. The Timoshenko beam theory is used to establish the system equation of motion. The analysis is based on the finite element method. Active modal control technique is developed in this work vibration control of a pipe conveying fluid under external

Nonlinear Torsional Vibration Absorber for Flexible vibration control of a pipe conveying fluid under external

Dec 07, 2018 · A new kind of nonlinear energy sink (NES) is proposed to control the vibration of a flexible structure with simply supported boundaries in the present work. The new kind of absorber is assembled at the end of structures and absorbs energy through the rotation angle at the end of the structure. vibration control of a pipe conveying fluid under external Vibration Control of a Pipe Conveying Fluid vibration control of a pipe conveying fluid under externalControl of flexural vibration in a periodic pipe conveying vibration control of a pipe conveying fluid under externalFluid and structure interaction in vibrating pipe systems that convey fluid exists in many fields. Flexural vibration control is very important because of the possible damage to pipe systems that can be caused by vibrations. Using the transfer matrix method, the band structure and the frequency response function of pipe flexural vibration are calculated to investigate the gap frequency range vibration control of a pipe conveying fluid under externalControl of flexural vibration in a periodic pipe conveying vibration control of a pipe conveying fluid under externalFluid and structure interaction in vibrating pipe systems that convey fluid exists in many fields. Flexural vibration control is very important because of the possible damage to pipe systems that can be caused by vibrations. Using the transfer matrix method, the band structure and the frequency response function of pipe flexural vibration are calculated to investigate the gap frequency range vibration control of a pipe conveying fluid under external

Ali 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.Ali EBRAHIMI-MAMAGHANI | PostDoc Position | 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.Active Vibration Control Of Pipes Conveying Fluid 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

Active Vibration Control Analysis of Cantilever Pipe vibration control of a pipe conveying fluid under external

vibration control field. For example, [1]and [2] introduced independent mode space concept in optimal control and model reference self-adaptation control, and adopt ceramic piezoelectric sheets as simulator to control cantilever pipes conveying fluid vibration under steady flow. [3] Conducted active control on nonlinear restrains(PDF) Vibration analysis and control of a screw compressor vibration control of a pipe conveying fluid under externalVibration control of a pipe conveying fluid under external periodic excitation using a nonlinear energy sink vibration control of a pipe conveying fluid under external The results show that the middle of the pipe is the best position for connecting vibration control of a pipe conveying fluid under external

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