A model-based technique to identify lubrication condition of hydrodynamic bearings using the rotor vibrational response

Oliveira, Marcus Vinícius Medeiros; Cunha, Barbara Zaparoli; Daniel, Gregory B.

doi:10.1016/j.triboint.2021.107038

Cited by 12 publications

(3 citation statements)

References 20 publications

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“…The vibration amplitudes in Figures 5c and 6c were similar to those shown in [29], where the amplitudes in the bearings varied with respect to the lubricant supply flow rate of the rotary system. In addition, a "beat vibration" effect was observed by varying the rotational frequency, as in [30].…”

Section: Discussionsupporting

confidence: 69%

Metaheuristic Algorithm-Based Vibration Response Model for a Gas Microturbine

Montoya-Santiyanes

Rodríguez-Abreo

Rodriguez

et al. 2022

Sensors

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Data acquisition and processing are areas of research in fault diagnosis in rotating machinery, where the rotor is a fundamental component that benefits from dynamic analysis. Several intelligent algorithms have been used to optimize investigations of this nature. However, the Jaya algorithm has only been applied in a few instances. In this study, measurements of the amplitude of vibration in the radial direction in a gas microturbine were analyzed using different rotational frequency and temperature levels. A response surface model was generated using a polynomial tuned by the Jaya metaheuristic algorithm applied to the averages of the measurements, and another on the whole sample, to determine the optimal operating conditions and the effects that temperature produces on vibrations. Several tests with different orders of the polynomial were carried out. The fifth-order polynomial performed better in terms of MSE. The response surfaces were presented fitting the measured points. The roots of the MSE, as a percentage, for the 8-point and 80-point fittings were 3.12% and 10.69%, respectively. The best operating conditions were found at low and high rotational frequencies and at a temperature of 300 ∘C. High temperature conditions produced more variability in the measurements and caused the minimum value of the vibration amplitude to change in terms of rotational frequency. Where it is feasible to undertake experiments with minimal variations, the model that uses only the averages can be used. Future work will examine the use of different error functions which cannot be conveniently implemented in a common second-order model. The proposed method does not require in-depth mathematical analysis or high computational capabilities.

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Section: Discussionsupporting

confidence: 69%

Metaheuristic Algorithm-Based Vibration Response Model for a Gas Microturbine

Montoya-Santiyanes

Rodríguez-Abreo

Rodriguez

et al. 2022

Sensors

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“…However, it is still difficult to manufacture micro-nozzles. Oliveira et al [ 174 ] introduced a bearing-based rotating system model for modeling and identifying the oil supply in a dynamic pressure bearing. Based on this model, a freshly identifiable technology for bearing lubrication was developed.…”

Section: Research On Bearings Lubrication Technology Of Wind Turbinementioning

confidence: 99%

Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

et al. 2022

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Wind power, being a recyclable and renewable resource, makes for a sizable portion of the new energy generation sector. Nonetheless, the wind energy industry is experiencing early failure of important components of wind turbines, with the majority of these issues also involving wind power bearings. Bearing dependability is directly tied to the transmission efficiency and work performance of wind turbines as one of its major components. The majority of wind turbine failures are due to bearings, and the vast majority of bearing failures are due to lubrication. The topic of improving the accuracy and life of wind power bearing motion is becoming increasingly essential as the wind power industry develops rapidly. This study examines the various constructions and types of wind turbines, as well as their bearings. We also examined the most typical causes of friction and lubrication failure. Furthermore, contemporary research on wind turbine bearings has been compiled, which mostly comprises the study and development of lubrication technology and other areas. Finally, a conclusion and outlook on current challenges, as well as future research directions, are offered.

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“…[4][5][6] Aerodynamic/hydrodynamic bearings present a relatively large wear rate during startup stage and have high requirements for design and processing. [7][8][9] Magnetic bearings can only act on magnetic materials and produce electromagnetic interference to precision instruments. 10,11 Therefore, starting from the new working principle, exploring new methods may be a way to expand the application field of non-contact bearings.…”

Section: Introductionmentioning

confidence: 99%

The performance evaluation of a surface-textured ultrasonic levitation bearing under multi-operation mode

Shi

Gao

Zhang

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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The load capacity of ultrasonic levitation bearing has become an important factor limiting its practical application in engineering, due to which the load capacity is very small compared to that of other gas bearing. In order to obtain greater load capacity, surface texture is introduced into ultrasonic levitation bearing in this study. A theoretical model considering the geometry parameters and mode shape is established to obtain the running performance of surface-textured ultrasonic levitation bearing, which is solved by using eight-point discrete grid finite-difference method. Influence of driving voltage, rotational speed, eccentricity ratio, texture position, and texture size parameters on load capacity is investigated systematically. Previous experimental results were used to verify the feasibility of the proposed model. The results show that positive texture can effectively improve the load capacity of ultrasonic levitation bearing, especially under ultrasonic levitation mode. Research results are instructive for understanding the lubrication mechanism of ultrasonic levitation bearing and further promote the practical application of the bearing in engineering.

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A model-based technique to identify lubrication condition of hydrodynamic bearings using the rotor vibrational response

Cited by 12 publications

References 20 publications

Metaheuristic Algorithm-Based Vibration Response Model for a Gas Microturbine

Metaheuristic Algorithm-Based Vibration Response Model for a Gas Microturbine

Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

The performance evaluation of a surface-textured ultrasonic levitation bearing under multi-operation mode

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