Electric submersible pump vibration analysis under several operational conditions for vibration fault differential diagnosis

Reges, Galdir; Fontana, Márcio; Ribeiro, Marcos Pellegrini; Silva, Tiago; Abreu, Odilon S.L. de; Reis, Ricardo; Schnitman, Leizer

doi:10.1016/j.oceaneng.2020.108249

Cited by 32 publications

(8 citation statements)

References 9 publications

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“…Fault diagnosis for centrifugal pumps is most commonly performed with vibration analysis [19][20][21][22][23][24]. Vibration analysis is the process of monitoring vibration signals within a machine to detect abnormal operating levels or patterns to evaluate its condition.…”

Section: Pump Fault Mechanismsmentioning

confidence: 99%

Integrating Survival Analysis with Bayesian Statistics to Forecast the Remaining Useful Life of a Centrifugal Pump Conditional to Multiple Fault Types

Kapuria

Cole

2023

Energies

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To improve the viability of nuclear power plants, there is a need to reduce their operational costs. Operational costs account for a significant portion of a plant’s yearly budget, due to their scheduled-based maintenance approach. In order to reduce these costs, proactive methods are required that estimate and forecast the state of a machine in real time to optimize maintenance schedules. In this research, we use Bayesian networks to develop a framework that can forecast the remaining useful life of a centrifugal pump. To do so, we integrate survival analysis with Bayesian statistics to forecast the health of the pump conditional to its current state. We complete our research by successfully using the Bayesian network on a case study. This solution provides an informed probabilistic viewpoint of the pumping system for the purpose of predictive maintenance.

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Section: Pump Fault Mechanismsmentioning

confidence: 99%

Integrating Survival Analysis with Bayesian Statistics to Forecast the Remaining Useful Life of a Centrifugal Pump Conditional to Multiple Fault Types

Kapuria

Cole

2023

Energies

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“…The main reasons for the unsteady pulsating flow are inherent in the very nature of the centrifugal pump, its design features, and the physical processes that occur when water flows through the elements of the flow path [10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Assessment of units vibration state and water supply path of Amuzang-2 pumping station

Shaazizov

2023

E3S Web of Conf.

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This article presents separate results of studies devoted to the study and analysis of vibrational phenomena occurring on pumping units and along the line of the pressure pipeline of the surveyed pumping stations, associated with flow pulsation in the water supply path and cavitation manifested on pumping units. As is known, the operation of pumps is accompanied by hydrodynamic oscillatory phenomena, which are expressed in the non-stationarity of the field of velocities and pressures of water at the outlet of the pump. This is especially typical for powerful centrifugal pumps with high volumetric flow rates and pressure drops on the impeller, which took place at Amuzang-2 pumping station. Thus, the analysis of the results of vibration tests of pipelines allows us to draw the following conclusions: 1. The vibration state of all pipelines is unsatisfactory. 2. The cause of increased vibration is an unfavorable combination of design, installation, and operational factors.

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“…When the system is complex and the physical model is difficult to accurately establish, this method is widely used [7]. A correlation matrix analysis is provided to demonstrate that variation in the fluid-temperature difference between the pump intake and discharge is related to the vibration amplitude variation in a pump with a fault [8]. Kundu [9] presents a correlation coefficient based parameter for detecting the natural progression of pitting fault in spur gear.…”

Section: Introductionmentioning

confidence: 99%

Turbo generator vibration source identification based on operational transfer path analysis technology

Yan,

Zhong,

et al. 2023

J. vibroeng.

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Unstable vibrations in rotating machinery can stem from various causes, making it challenging to determine their origins. This research introduces the operational transfer path analysis method (OTPA) as a means to identify the causes of turbo generator vibrations. The model takes operational parameters, such as power and current, as input, and the vibration amplitude as output, to establish the source analysis model. To address the ill-conditioned input matrix, the singular value decomposition method is employed. By solving the transmissibility matrix and analyzing parameter contributions, the primary factors influencing vibration are identified. This method is applied to analyze the vibration sources in a 660 MW turbine generator unit. The generator experienced unstable vibration of unknown origin for a certain period. Operational transfer path analysis revealed that hydrogen pressure, hydrogen temperature, and bearing temperature significantly impacted the vibrations. Thermal imbalances and shaft misalignment in the generator rotor were inferred as the likely causes. Through adjustments to hydrogen pressure and temperature, the generator vibration was controlled until the next overhaul. Subsequent maintenance revealed partial blockage of the hydrogen ventilation holes, leading to rotor thermal imbalances. The feasibility of this method was confirmed. The objective of this study is to present an effective data-driven model for identifying the main influential parameters among numerous variables. This model can be applied to intelligent fault diagnosis in power generation units.

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Electric submersible pump vibration analysis under several operational conditions for vibration fault differential diagnosis

Cited by 32 publications

References 9 publications

Integrating Survival Analysis with Bayesian Statistics to Forecast the Remaining Useful Life of a Centrifugal Pump Conditional to Multiple Fault Types

Integrating Survival Analysis with Bayesian Statistics to Forecast the Remaining Useful Life of a Centrifugal Pump Conditional to Multiple Fault Types

Assessment of units vibration state and water supply path of Amuzang-2 pumping station

Turbo generator vibration source identification based on operational transfer path analysis technology

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