A concept to reduce vibrations in steel catenary risers by the use of viscoelastic materials

Borges, Flávia; Roitman, Ney; Magluta, Carlos; Castello, Daniel A.; Franciss, Ricardo

doi:10.1016/j.oceaneng.2013.12.004

Cited by 21 publications

(29 citation statements)

References 20 publications

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“…The experimental study carried out by Borges et al (2014) is used as the reference to calibrate the finite element model. The numerical results are compared with the experimental data.…”

Section: Numerical Model Calibrationmentioning

confidence: 99%

“…For completeness, the experimental studies are briefly introduced in this section, more detailed information can be found in Borges et al (2014). Borges et al (2014) carried out a series of experimental studies to identify the modal parameters (vibration frequencies and damping) of the original structure and structures assembled with different VEMs and CLs. The original structure consists of a brass beam with tubular cross section that is cantilevered at one end and free at the other.…”

Section: Numerical Model Calibrationmentioning

confidence: 99%

“…Saidi et al 2011;Borges et al 2014). Normally a layer or multiple layers of viscoelastic materials (VEM) and a constraining layer (CL) are added to the original structure.…”

Section: Introductionmentioning

confidence: 99%

“…This paper investigates the effectiveness of using constrained VEM layers to mitigate seismic induced vibrations of above ground pipelines. This idea originates from the recent work done by Borges et al (2014), in which they proposed and investigated a concept aimed at suppressing vibrations in steel catenary risers by the use of viscoelastic sandwich layers. A series of experimental studies were carried out to find out the frequencies and damping of different vibration modes of the riser equipped with different scenarios of VEM.…”

Section: Introductionmentioning

confidence: 99%

“…Instead of performing experimental studies, numerical simulations are carried out in the present study to investigate the effectiveness of using viscoelastic materials as the seismic vibration control solution to above ground pipelines by using the commercial software package ANSYS. The numerical model of the viscoelastic material is calibrated based on the experimental data obtained from testing a 1.6m long tubular sandwich structure (Borges et al 2014). The calibrated model is then applied to the above ground pipeline system.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The effectiveness of using viscoelastic materials to reduce seismic induced vibrations of above ground pipelines

Bi¹,

Hong²

2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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Pipeline systems are commonly used to transport oil, natural gas, water, sewage and other materials. They are normally regarded as important lifeline structures. Ensuring the safety of these pipeline systems is crucial to the economy and environment. There are many reasons that may result in the damages to pipelines and these damages are often associated with pipeline vibrations. Therefore it is important to control pipeline vibrations to reduce the possibility of catastrophic damages. This paper carries out numerical investigations on the effectiveness of using viscoelastic material layers to mitigate seismic induced vibrations of above ground pipelines. The numerical analyses are carried out by using the commercial finite element code ANSYS. The numerical model of the viscoelastic material is firstly calibrated based on the experimental data obtained from a 1.6m long tubular sandwich structure. The calibrated material model is then applied to the pipeline system. The effectiveness of using viscoelastic materials as the seismic vibration control solution is discussed.

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“…The experimental study carried out by Borges et al (2014) is used as the reference to calibrate the finite element model. The numerical results are compared with the experimental data.…”

Section: Numerical Model Calibrationmentioning

confidence: 99%

Section: Numerical Model Calibrationmentioning

confidence: 99%

“…Saidi et al 2011;Borges et al 2014). Normally a layer or multiple layers of viscoelastic materials (VEM) and a constraining layer (CL) are added to the original structure.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The effectiveness of using viscoelastic materials to reduce seismic induced vibrations of above ground pipelines

Bi¹,

Hong²

2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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Analytical model for transfer process of deepwater steel lazy-wave riser on elastic seabed

Wang

Duan

2018

J Mar Sci Technol

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A study on vibration-suppression mechanism for risers using flexible structural joints

Fujiwara

2024

J Mar Sci Technol

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These new mechanisms for suppressing vibration in large diameter intake pipes and pumping systems has been developed for use in Floating Liquefied Natural Gas (FLNG) facilities. Like existing devices such as fairings and strakes, this mechanism is designed for practical use and has a flow path inside the pipe. The mechanism is designed to suppress vibration caused by both float motion and vortex-induced vibration (VIV) due to currents. Experiments were conducted using a scale model, and numerical calculations were used to evaluate the mechanism’s ability to reduce vibration. As a result, the natural frequencies of the pipes were analyzed, and it was found that the vibration damping mechanism, when installed at appropriate locations, can provide effective vibration suppression against the motion of the upper float and vibration caused by VIV due to currents over the entire length of the pipe, even at limited installation locations. On the other hand, it was found that the vibration suppression effect could not be achieved without appropriate positioning, and that the longer the pipe length, the more limited the vibration damping capability.

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A concept to reduce vibrations in steel catenary risers by the use of viscoelastic materials

Cited by 21 publications

References 20 publications

The effectiveness of using viscoelastic materials to reduce seismic induced vibrations of above ground pipelines

The effectiveness of using viscoelastic materials to reduce seismic induced vibrations of above ground pipelines

Analytical model for transfer process of deepwater steel lazy-wave riser on elastic seabed

A study on vibration-suppression mechanism for risers using flexible structural joints

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