极端载荷下风力机耦合动力学分析  

Analysis of Wind Turbine Coupling Dynamics Under Extreme Load

作　　者：丁健刚[1] 殷玉枫[1] 高崇仁[1] 李永健[1] 

机构地区：[1]太原科技大学机械工程学院,山西太原030024

出　　处：《机械设计与制造》2014年第6期199-202,共4页Machinery Design & Manufacture

基　　金：山西省科技攻关项目(20100321058-01)

摘　　要：在极端载荷作用下,风力机结构会产生振动和变形,影响正常运行,严重时会导致风力机损坏。因此,风力机设计必须考虑其耦合振动稳定性。通过对风力机模型的简化,建立了在极端载荷作用下由叶片、机舱、塔架组成的风力机系统动力学模型和运动方程。利用Matlab/Simulink仿真软件进行振动模拟仿真,仿真数据同实验数据比较,结果表明该模型可以较好的模拟风力机在极端载荷作用下的振动特性,对于提高风力机的总体性能以及风力机的总体设计具有重要的理论价值和实践意义。Under the extreme loads, the wind turbine structure will produce vibration and deformation, affecting the normal operation of the wind turbine, and leading to serious damage. Therefore, the wind turbine design must consider the coupled vibration. By simplifying the model of wind turbine, dynamics model and equation of motion composed of blades, nacelle, tower is built. Using MATLAB, the simulation data compared with the experimental data, the results show that it can better simulate the vibration of the wind turbine under extreme load, it has important theoretical value and practical significance to improve the overall performance of the wind turbine and wind turbine design.

关 键 词：联合概率密度函数 极端载荷 耦合振动 

分 类 号：TH16[机械工程—机械制造及自动化] TK83[动力工程及工程热物理—流体机械及工程]