Affiliation:
1. Department of Convergence Engineering, Jungwon University, Goesan-gun 28024, Republic of Korea
2. Institute for Advanced Engineering, Yongin 17180, Republic of Korea
Abstract
The present study was conducted to evaluate the analytical precision of finite element analysis models of wind turbine bearings. In the finite element analysis models, balls were modeled as finite element meshes as a solid model or replaced by nonlinear springs as two kinds of spring models. In addition, test bench modeling was performed to calculate the displacement following the application of a turnover moment by means of a global model analysis and to calculate the contact stress by means of a sub-model analysis. The comparison of the results of the finite element analyses with the results of the bearing bench test showed that the analytical precision was 17% in the single-spring model, 9% in the Daidie spring model, and 3% in the finite element mesh ball model, indicating that the finite element mesh ball model exhibited the highest precision.
Funder
Korea Institute of Energy Technology Evaluation and Planning
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference22 articles.
1. Abhijith, S. (2018). Study of Pitch Bearings in Wind Turbines—A Model Based Approach. [Master’s Thesis, KTH Industrial Engineering and Management Machine Design].
2. Harris, T.A. (1991). Rolling Bearing Analysis, Wiley-Interscience. [3rd ed.].
3. An Engineering Approach to Hertzian Contact Elasticity—Part I;Houpert;J. Tribol.,2000
4. A New Proposal for Explicit Angle Calculation in Angular Contact Ball Bearing;Antoine;J. Mech. Des.,2005
5. Calculation of General Static Load-Carrying Capacity for the Design of Four-Contact-Point Slewing Bearings;Aguirrebeitia;J. Mech. Des.,2010