风力发电机组有限元分析(FEA)
Finite Element Analysis (FEA) for wind turbines
2007年7月4日
4th July 2007
风机的有限元分析（FEA）–越来越重要
FEA for wind turbines -increasingly important
仅仅是几年前，有限元分析还仅仅用于相对简单的模型的计算。
Only a few years ago, FEA was ud for relatively simple models
组织论
中国结编法目前：
Prently:
•越来越多的风机部件使用有限元进行分析
Increasing number wind turbine components analyd using FEA
•越来越多的细节在有限元模型中的体现，例如
Increasing amount of detail in FE model for instance
°变接触角轴承的表示法variable-contact-angle bearing reprentation
°部件间具有有限摩擦的接触面的表示法（法兰表面的张开和移位）
reprentation of contact between parts with finite friction (opening/ sliding of flange surfaces)°已装配螺栓的详细表示法detailed reprentation of bolts in asmblies
•越来越多的复杂的非线性有限元Increasing number of complex, non-linear FEA
FE analysis for wind turbines
FE analysis for wind turbines
头像素描风机的FEA –在设计中的位置
FEA for wind turbines -place in the design process
GH 有限元分析过程GH FEA process
规范regulations
制造限制
manufacturing limits 客户经验/偏好
client experience/ preference
质量quality
人员通过Personnel access
安装/安全asmbly/safety青春励志广播稿
与其他部件的接口
interfaces with other components
材料限制material limits
最优/可接受的设计
Optimal /acceptable design
设计性能指标
Design performance indicators:
成本（材料，产品，运输，操作）Cost (material, production,transport, handling)重量Weight 强度Strength
FE analysis for wind turbines
白带变绿Main bearing asmbly
Nacelle structure
Rotor head
Nacelle extender
Blade ction
Pitch bearing
Pitch bearing plates
(on top and bottom of inner race)
同一组载荷下不同设计概念的比较
comparison of different concepts under identical load ts
最终设计尺寸强度的详细分析
detailed analysis of strength of final design geometry
打光屁股的作文风机的FEA –在设计中的位置
FEA for wind turbines -place in the design process
风机的FEA –最新的分析技术
FEA for wind turbines -state of art technology
德国劳埃德船级社2003版规范
GL (Germanisher Lloyd) 2003 regulations
有很大一章是对有限元分析的原则性和细节的要求
Extensive chapter with general and detailed FEA requirements
挪威船级社（丹麦规范）
DNV (Danish regulations)
对有限元分析的要求很少，认证更具一般性
Fewer FEA requirements, more generic in certification
Garrad Hassan的工作符合GL的要求或更进一步
Garrad Hassan work to GL requirements or further
生地黄的功效GL 规范GL regulations
母猪不发情
GH 分析发展
GH analysis development 某个部件的有限元分析—
模型和实际之间的小差距
FEA for certain components –
narrow gap between model and reality
GL接受新的或者改进的有限元分析方法
acceptance and adoption by GL
of new or improved FEA
FE analysis for wind turbines
