NREL：2024年风力发电机设计导则DG03偏航和俯仰轴承报告（英文版）

1.1 Scope This design guideline (DG) describes the design criteria, calculation methods, and applicable standards recommended for use in performance and life analyses of ball and roller (rolling) bearings for yaw and pitch motion support in wind turbine applications. The formulae presented here for rolling bearing analytical methods and bearinglife ratings are consistent with methods currently used by wind turbine designers and rolling bearing manufacturers. The original yaw and pitch bearing