Book chapter
A New Multiscale Modeling and Simulation of Rolling Contact Fatigue for Wind Turbine Bearings
Advanced Wind Turbine Technology, pp.119-142
Springer International Publishing
05/08/2018
DOI: 10.1007/978-3-319-78166-2_4
Abstract
A hierarchical multiscale method is proposed in this chapter to study the rolling contact fatigue in wind turbine bearing with the consideration of lubricant effects. This multiscale model consists of a molecular model of lubricant and a continuum model of rolling contact components. At the nanoscale, molecular dynamics is employed to model the lubricant and to calculate the friction coefficient at the rolling contact surface. At the macroscale, the finite element method is used to conduct stress analysis of the rolling contact component so that the fatigue life can be predicted. The calculated friction coefficient is passed from the molecular model to the continuum model in the proposed multiscale model. The effect of fluctuating load on the rolling contact fatigue life is also studied in this chapter. The objective of this study is to develop a new multiscale framework which connects the nanoscale and the macroscale. It shall be noted that a commonly used fatigue life model is employed in the continuum model.
Details
- Title: Subtitle
- A New Multiscale Modeling and Simulation of Rolling Contact Fatigue for Wind Turbine Bearings
- Creators
- Mir Ali Ghaffari - General MotorsShaoping Xiao - University of Iowa
- Resource Type
- Book chapter
- Publication Details
- Advanced Wind Turbine Technology, pp.119-142
- DOI
- 10.1007/978-3-319-78166-2_4
- Publisher
- Springer International Publishing; Cham
- Language
- English
- Date published
- 05/08/2018
- Academic Unit
- Iowa Technology Institute; Mechanical Engineering
- Record Identifier
- 9984195163102771
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