Tóm tắt:

One of the main causes of energy loss in wind turbine systems is friction between moving parts, particularly the multiplier, braking system and shaft supports. Conical- cylindrical plain bearings with a friction-reducing design help reduce energy consumption during turbine operation. Conical-cylindrical hydrodynamic bearings play a crucial role in wind turbines, reducing friction and energy losses, and effectively transmitting mechanical energy from wind blades to generators, thereby enhancing the overall efficiency of wind turbines. The research has developed a mathematical model to analyze the load-bearing capacity and energy losses due to friction. Using the calculation program developed on the basis of mathematical modeling and algorithms, a set of calculation experiments was performed to calculate the load-carrying capacity, moment and frictional power loss in a combined angular contact bearing depending on the shaft speed, lubricating oil supply pressure, radial clearance and relative eccentricity. This study investigates the characteristics of cylindrical-conical hydrodynamic fluid friction bearings and their critical role in optimizing the performance of wind turbines. By analyzing the load-carrying capacity, friction torque, and power losses under varying geometric and kinematic conditions, the research highlights how these bearings contribute to the overall efficiency and reliability of wind energy systems. The findings provide valuable insights into the design and operation of hydrodynamic bearings in highly loaded wind turbine applications, supporting the development of more sustainable and efficient wind energy technologies.