Results 21 to 30 of about 344,259 (263)
A review of wind turbine main bearings: design, operation, modelling, damage mechanisms and fault detection [PDF]
Wind Energy Science, 2020 This paper presents a review of existing theory and practice relating to main bearings for wind turbines. The main bearing performs the critical role of supporting the turbine rotor, with replacements typically requiring its complete removal.
E. Hart +8 more
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Impacts of wind field characteristics and non-steady deterministic wind events on time-varying main-bearing loads [PDF]
Wind Energy Science, 2022 This work considers the characteristics and drivers of the loads experienced by wind turbine main bearings. Simplified load response models of two different hub and main-bearing configurations are presented, representative of both inverting direct-drive ...
E. Hart +7 more
doaj +1 more source
Optimization of crankshaft main bearing lubrication performance considering bearing profiles
Journal of Physics: Conference Series, 2020 Abstract It is the aim of this work to reduce friction power loss of main bearings by optimization. To this purpose, elastohydrodynamic (EHD) model is used for EHD calculations for different main bearings. BP neural network is implemented to establish the approximation model for bearings.
Qingchuan Du +3 more
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Research on Tunnel-Boring Machine Main Bearing Fatigue Damage and Vibration Response
Metals, 2023 Based on the damage evolution equation of bearing steel, a user subroutine was developed to simulate the fatigue damage behavior of the TBM main bearing under the condition of low speed and heavy load.
Hongliang Zhang, Chuanyong Qu
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Main Bearing Stiffness Investigation
, 2011 Simplified coupled engine block-crankshaft models based on beam theory provide an efficient substitute to engine simulation in the design process. These models require accurate definition of the main bearing stiffness. In this paper, an investigation of this stiffness is presented. The clearance effect is studied using a smooth bearing model.
B. Bellakhdhar, A. Dogui, J.L. Ligier
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Bearing Signal Separation of Commercial Helicopter Main Gearbox
Procedia CIRP, 2017 © 2017 The Authors. Gears are significant component in a multiplicity of industrial applications such as machine tool and gearboxes. An unforeseen failure of gear may result in significant economic losses. Therefore this research propose fault detection improvement throught series of vibration signal processing techuiques.
Elasha, Faris +2 more
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Damage of Main Bearings in Main Engine
JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN, 1999 Troubles by the damage of the shafting of main propulsion system give a great impact on the safety of vessels as well as the budget of ship's owners with its tendency of ceaselessness. Cause of trouble varies widely and identification of it requires huge efforts and long time in many cases.The trouble case introduced hereunder also forced the vessel ...
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Polish Maritime Research, 2018 The Craig-Bampton modal synthesis method was used to establish the dynamic model of marine four-stroke diesel engine body and crankshaft. Based on the Greenwood/Tripp microlong contact theory considering the surface roughness and the generalized Reynolds
Xian Bin Teng, Jun Dong Zhang
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Effect of a generic main bearing catalogue on the power density of main bearing system predesigns
Journal of Physics: Conference SeriesAbstract Main bearings for wind turbines (WTs) are typically custom made and not chosen from a public bearing catalogue. Predesigning the WT main bearing system (MBS) based on public bearing catalogues, the uneven distribution of bearing types, diameters and width can result in a suboptimal bearing selection.
Christian Hollas +5 more
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Sliding moment bearing as a main bearing in wind turbine generators
, 2017 Conference for Wind Power Drives 2017, CWD 2017, Aachen, Germany, 7 Mar 2017 - 8 Mar 2017; 17 Folien (2017).
Schröder, Tim +2 more
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