Electrostatic discharge impacts on the main shaft bearings of wind turbines [PDF]
This paper studies the electrostatic discharge effect in wind turbines, a possible trigger source of the main bearing current. A lab setup with a charge generator and downsized wind turbine was built to verify the impact of electrostatic discharge on the
J. Zhao, X. Xu, O. Carlson
doaj +3 more sources
Advanced Bearing System for Ultra Precision Plastic Electronics Production Systems [PDF]
The aims of this MSc research project are to investigate the application of aluminium for the main components of an ultra-precision spindle defined for use in R2R production systems and to produce a reel to reel rotary aluminium hydrostatic bearing ...
Zhao, Gang
core +7 more sources
The main types of ore-bearing structure of Ukraine
The article is given description of the main tectonic structures in Ukraine, which control the largest allocation of ore and oil-gas regions, it is trans-through unit area of activation units suture zone and their intersection.
L. S. Galetskiy +2 more
doaj +2 more sources
Performance studies of oil lubricated helical groove journal bearing [PDF]
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The provision of helical grooves on the surface of a plain journal bearing can improve the stability of a rotor-bearing system.
Khan, Muhammad Zubair
core +7 more sources
Research and Practice on Localization of Offshore Wind Turbines
This paper analyzed the localization status of key components and systems in offshore wind turbines such as blades, spindles, electrical systems, and control systems.In view of the localization weaknesses existing in the components and systems of ...
SUN Caixin +6 more
doaj +1 more source
Wind turbine main-bearing lubrication – Part 2: Simulation-based results for a double-row spherical roller main bearing in a 1.5 MW wind turbine [PDF]
This paper is the second in a two-part study on lubrication in wind turbine main bearings. Where Part 1 provided an introductory review of elastohydrodynamic lubrication theory, this paper will apply those ideas to investigate lubrication in the double ...
E. Hart, E. de Mello, R. Dwyer-Joyce
doaj +1 more source
Early Detection of Main Bearing Damage in Wind Turbines
According to the European Wind Energy Academy (EAWE), the wind industry has recognized that main bearing failures are a major concern in order to increase the reliability and availability of wind turbines. This is due to the high replacement cost of major repairs and the long downtime associated with main bearing failures.
Moyón, Luis +3 more
openaire +3 more sources
Condition Monitoring of Wind Turbine Main Bearing Based on Multivariate Time Series Forecasting
Condition monitoring and overheating warnings of the main bearing of large-scale wind turbines (WT) plays an important role in enhancing their dependability and reducing operating and maintenance (O&M) costs. The temperature parameter of the main bearing
Xiaocong Xiao +4 more
doaj +1 more source
A feasibility study into prognostics for the main bearing of a wind turbine [PDF]
Maintenance for wind turbines, particularly offshore turbines, presents a significant cost component to wind farm operators. The main bearing, which supports the low-speed shaft, is one of the major wind turbine system components. Since maintenance is confined to suitable weather windows, which are unpredictable, there is a need for decision support ...
Shane Butler +3 more
openaire +3 more sources
Anomaly-Based Fault Detection in Wind Turbine Main Bearings
Abstract. Renewable energy is a clean and inexhaustible source of energy, so every year interest in the study and the search for improvements in production increases. Wind energy is one of the most used and therefore the need for predictive maintenance management to guarantee the reliableness and operability of each of the wind turbines has become a ...
L. Campoverde-Vilela +5 more
openaire +4 more sources

