Nonlinear dynamic and bifurcations analysis of an axially moving circular cylindrical nanocomposite shell

Mohamadi, Arash; Shahgholi, Majid

doi:10.1007/s10999-021-09571-9

Cited by 8 publications

(1 citation statement)

References 41 publications

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“…Zigang Li et al in [12] conducted a nonlinear dynamic study of a rotor-bearing system, considering the effects of misalignment faults and analyzing nonlinear dynamic behaviors supported by sliding bearings. Several other works have been undertaken, exploring different bifurcation analyses of vibration and fault-tolerant control to monitor gas turbines in their design and implementation, as carried out by Ahmed Hafaifa et al in [13], Choayb Djeddi et al in [14], Arash Mohamadi et al in [15], Avramov and Malyshev in [16], Avramov and Raimberdiyev in [17], Jafar Aghayari et al in [18], Li Ma et al in [19], Nicolas Noiray and Bruno Schuermans in [20], and Xiao-Ye Mao et al in [21].…”

Section: Introductionmentioning

confidence: 99%

Practical bifurcation analysis for the vibration’s proficiency and their influences on gas turbine operations: Towards the digitization of their monitoring

Mahroug,

Hafaifa,

Iratni

et al. 2024

Scientia Iranica

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The emergence of modern technology in the oil and gas sectors presents an opportunity to enhance productivity, minimize environmental impact and optimize the energy efficiency of these facilities, leading to increased economic benefits. In pursuit of sustainable development in gas-turbine operations, this study develops a mathematical model that is validated through experimental tests for monitoring the vibrations of an MS5002B gas turbine located in a gas compressor station. The primary objective is to determine the bifurcation indices, ensuring the continuous stability of the studied turbine's operating state while monitoring its vibrations in real-time.A comparison between the experimental and numerical results of the developed model is validated against real operating data, enabling predictions of the complex dynamic behaviors within the bearingrotor system of the examined turbine. Robustness tests, based on real-time operating data, are conducted to analyze the impacts of undesirable effects that may disrupt the turbine system, as depicted in the bifurcation diagram. This approach facilitates the monitoring of the dynamic behavior of vibratory phenomena in the examined turbine, allowing for the establishment of reliable diagnostic elements to ensure component stability and prevent unscheduled production shutdowns. Ultimately, this approach enhances energy efficiency while delivering environmental and economic improvements.

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