中文摘要：

风力发电产业发展迅速,提高发电机组可靠性成为了一个重要的课题,其中发电机轴承运行可靠性就是其中之一.利用传热学、摩擦学理论分析了风力发电机轴承正常及风速突变状态下的发热机理和传热特点,通过ANSYS 软件建模求解出温度场、热流密度等热力学量并对求解结果进行分析.研究结果对风力发电机轴承故障诊断以及优化设计有参考意义.

英文摘要：

With the rapid development of wind power industry, it has become an important subject to improve the stability of generating unit, including the reliability of generator bearing operation. Using heat transfer theory and tribology theory, the heating mechanism and heat transfer characteristics of wind turbine bearing are analyzed under the normal wind speed and the wind speed mutation. The bearing is modeled by ANSYS software to calculate the temperature field, heat flux density and oth-er thermodynamic quantities, and the results are analyzed to deduce some conclusions, which gives a reference value to fault diagnosis of wind turbine generator bearings and its design optimization.