风力发电机叶片的动力特性分析  

Dynamic Analysis of Wind Generators Blade

作　　者：陈海萍[1] 孙文磊[1] 

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830008

出　　处：《机床与液压》2010年第23期101-104,共4页Machine Tool & Hydraulics

基　　金：国家自然科学基金项目(50765007);新疆科技攻关项目(200932118)

摘　　要：对750 kW水平轴风力发电机叶片在风、重力和离心力的耦合作用下的动力特性进行仿真分析。根据选定的湍流模型,并将自然流风视作黏性不可压缩的定常流,同时把风机叶片作柔性体处理,模拟得出风轮面的流线图和任一时刻的风机叶片全局力学性能数据。对仿真结果进行分析,得出风力发电机叶片的受力、变形分布形态和规律,为风机叶片进一步的失效分析和结构优化设计提供依据和参考。The dynamic simulations of the blades of 750 kW horizontal axis wind generator were carried out in the coupling of wind,gravity and centrifugal force.Based on the selected turbulence model,considering the natural flow of air as a viscous incompressible steady flow,taking the fan blades as flexible body,the flowing line graph of wind wheel surface and the overall mechanical performance data at any moment were simulated.Analyzing the simulation results,the deformation distribution patterns and rules of the fan blades are obtained,which provide reference for the further failure analysis and structural optimization design of fan blade.

关 键 词：风力发电机叶片 数值仿真 流固耦合 动力特性 

分 类 号：TB126[理学—工程力学]