Wear Analysis of Wind Turbine Gearbox Bearings

Blau, Peter Julian¹  Walker, Larry R¹  Xu, Hanbing¹  Parten, Randy J¹  Qu, Jun¹  Geer, Tom¹ 

[1]ORNL

关键词: BEARINGS;    CROSS SECTIONS;    DAMAGE;    FRACTURES;    HARDNESS;    NATIONAL RENEWABLE ENERGY LABORATORY;    WEAR;    WIND;    WIND TURBINES wind turbines;    gearbox;    bearings;    wear;    failure analysis;   

DOI  :  10.2172/980718
RP-ID  :  ORNL/TM-2010/59
PID  :  OSTI ID: 980718
Others  :  Other: EB2501010
Others  :  CEEB004
Others  :  TRN: US201012%%1198

学科分类：再生能源与代替技术

美国|英语

来源: SciTech Connect

【 摘 要 】

The objective of this effort was to investigate and characterize the nature of surface damage and wear to wind turbine gearbox bearings returned from service in the field. Bearings were supplied for examination by S. Butterfield and J. Johnson of the National Wind Technology Center (NREL), Boulder, Colorado. Studies consisted of visual examination, optical and electron microscopy, dimensional measurements of wear-induced macro-scale and micro-scale features, measurements of macro- and micro-scale hardness, 3D imaging of surface damage, studies of elemental distributions on fracture surfaces, and examinations of polished cross-sections of surfaces under various etched and non-etched conditions.