Research On Dynamic Characteristics Of Gear Transmission System On Wind Power Speed Increasing Box

As genergy and evironmental issues becomeing more severe,wind energy gets widly used in the wordwide. Because of the formiderable work conditions, domestic wind turbine often break. A lot of practice has proved that speed increasing gearbox is an important link of wind turbine failure. Research on dynamic characteristic of gear transmission system on wind power speed increasing gearbox is one of the urgent tasks of domestic wind power equipment design and manufacturing problems.The project of this paper is based on the grants of Chongqing Science and Technology Project. The gear transmission system on wind power speed increasing gearbox is the object of study. The dynamic characteristic of gear transmission on wind power speed increasing gearbox which is droved by wind load and inner motivation is researched.The main research work:â‘ Nonlinear dynamics equations of gear transmission on wind power speed increasing gearbox is deduced by Lagrange equation. This equation considers time variable mesh stiffness, error stiffness and mesh damp.â‘¡Nonlinear time variable mesh stiffness of inner and outer gearing in the gear transmission system and error motivation are calculated. External motivation which is generated by wind load is analyzed and the distribution map of wind load is draw.â‘¢The inherent characteristic of the system is analyzed by subspace iteration method and the Natural frequency and mode of vibration are calculated.â‘£Time and frequency response of the gear transmission system are calculated by using numerical integration methods of Gill. The dynamic characteristics of gear transmission system in wind power speed increasing gearbox are studied comprehensively.