• Development of a 5 MW reference gearbox for offshore wind turbines 

      Rasekhi Nejad, Amir; Guo, Yi; Gao, Zhen; Moan, Torgeir (Journal article, 2016)
      This paper presents detailed descriptions, modeling parameters and technical data of a 5MW high-speed gearbox developed for the National Renewable Energy Laboratory offshore 5MW baseline wind turbine. The main aim of this ...
    • Effects of floating sun gear in a wind turbine’s planetary gearbox with geometrical imperfections 

      Rasekhi Nejad, Amir; Xing, Yihan; Guo, Yi; Keller, Jonathan; Gao, Zhen; Moan, Torgeir (Journal article; Peer reviewed, 2015)
      This paper addresses the effect of gear geometrical errors in wind turbine planetary gearboxes with a floating sun gear. Numerical simulations and experiments are employed throughout the study. A National Renewable Energy ...