Physics-data hybrid dynamic analysis of novel integrated wind turbine drivetrain

作者：Shuyi Yang, Caichao Zhu, Chengwu Li, Ye Zhou, Jianjun Tan, Liao Bo · 发表于：International Journal of Mechanical Sciences · 年份：2025 · DOI：10.1016/j.ijmecsci.2025.110564 · 被引用次数：11 · 研究领域：Hydraulic and Pneumatic Systems、Mechanical Engineering and Vibrations Research、Real-time simulation and control systems

The highly integrated design of wind turbines enhances power density and reduces costs. However, the limited full-scale test data and insufficient coupling of simulation and experimental tests in conventional dynamic analysis approaches lead to significant prediction errors in dynamic responses, limiting the development of novel integrated wind turbine drivetrain (IWTD). This study proposes a novel physics-data hybrid dynamic modelling and analysis strategy for IWTD. Specifically, a mechatronic-rigid-flexible coupling dynamic model is developed in the physical modelling based on the finite element condensation theory. In the dataset establishment, real measured vibration acceleration responses are acquired from the full-scale drivetrain bench testing. Then, the improved precise integration method is proposed to solve the dynamic response by combining the test data and the physics model. The results indicate that the gearbox and generator exhibit strong mechatronic coupling in IWTD, with gearbox vibrations showing electromagnetic excitation frequencies and generator stator current showing gear mesh frequencies. Additionally, under stable input torque, the mechatronic coupling-induced radial eccentricity of the generator rotor significantly increases the vibration acceleration amplitude of IWTD. However, reducing the downwind main shaft bearing stiffness can attenuate this vibration response. In contrast, abrupt variations in input torque can induce significant transient impact...