风电叶片螺栓套疲劳试验机支架寿命分析
|
摘要
以风电叶片螺栓套试验机支架为研究对象,通过有限元分析和试验研究的方法,对螺栓套疲劳试验机加载支架的疲劳寿命进行研究。首先,根据实际工况的要求,对试验机支架进行建模并通过Solid Works Simulation组件对支架进行静力分析。然后,采用名义应力法对支架后梁结构的疲劳寿命进行计算并采用Solid Works Simulation组件对支架后梁结构进行疲劳分析。最后,通过疲劳试验对试验机支架的抗疲劳特性进行试验验证。研究结果表明,在有限元分析的基础上,采用名义应力法能够对风电叶片螺栓套试验机加载支架的疲劳寿命进行有效估算,为风电叶片螺栓套疲劳试验机的设计与应用提供理论基础。
With fatigue testing machine for bolt sleeve of wind turbine blade as the research object,through the method of finite element analysis and experimental study,fatigue life of the fatigue testing machine loading support is studied. First of all,according to the actual condition of the requirements,the testing machine support is modeled and static analysis is carried out by the Solid Works Simulation component. Then,fatiguelife for the back rest of the support was calculated by the nominal stress method and the fatigue analysis is carried out using Solid Works Simulation component. Finally,the fatigue resistance of the testing machine support is tested by the fatigue test. The results show that,on the basis of finite element analysis,the nominal stress method can estimate the fatigue life of bolt sleeve testing machine loading support for wind turbine blade effectively,providing the theoreticalbasis for the design and application of the fatigue testing machine,which is used for the boltsleeve of wind turbine blade.
With fatigue testing machine for bolt sleeve of wind turbine blade as the research object,through the method of finite element analysis and experimental study,fatigue life of the fatigue testing machine loading support is studied. First of all,according to the actual condition of the requirements,the testing machine support is modeled and static analysis is carried out by the Solid Works Simulation component. Then,fatiguelife for the back rest of the support was calculated by the nominal stress method and the fatigue analysis is carried out using Solid Works Simulation component. Finally,the fatigue resistance of the testing machine support is tested by the fatigue test. The results show that,on the basis of finite element analysis,the nominal stress method can estimate the fatigue life of bolt sleeve testing machine loading support for wind turbine blade effectively,providing the theoreticalbasis for the design and application of the fatigue testing machine,which is used for the boltsleeve of wind turbine blade.
引文
[1]周伟华,曹人靖.风力机叶片根部孔缺陷应力分析[J].机械设计与制造,2012(3):203-205.(Zhou Wei-hua,Cao Ren-jing.Stress analysis for blade root of wind turbine[J].Machinery Design and Manufacture,2012(3):203-205.)
[2]Lillo P,Crawford C.Analysis of embedded blade root carrot and T-Bolt connections subject to cold weather conditions using a finite element model[C].ASME 2010 International Mechanical Engineering Congress and Exposition.Vancouver:ASME,2010:75-79.
[3]韩玉清,吕路勇,邢晓坡.风轮叶片叶根疲劳强度分析方法的研究[J].能源工程,2009(3):33-36.(Han Yu-qing,Lv Lu-yong,Xing Xiao-po.Research on analysis method of fatigue strength in wind blade boot[J].Energy Engineering,2009(3):33-36.)
[4]Yung-Li Lee,Jwo Pan,Richard Hathaway.Fatigue Testing and Analysis Theory and Practice[M].Burlington:Butterworth-Heinemann,2005:130-171.
[5]袁熙,李舜酩.疲劳寿命预测方法的研究现状与发展[J].航空制造技术,2005(12):80-84.(Yuan Xi,Li Shun-ming.Research status and development of forecast method of fatigue life[J].Aeronautical Manufacturing Technology,2005(12):80-84.)
[6]Peippo J.A modified nominal stress method for fatigue assessment of steel plates with thermally cut edges[D].Lappeenranta:Lappeenranta University of Technology,2015.
[7]樊俊铃,郭杏林,吴承伟.热像法和能量法快速评估Q235钢的疲劳性能[J].材料工程,2012(12):71-76.(Fan Jun-ling,Guo Xing-lin,Wu Cheng-wei.Fast evaluation of fatigue behavior of Q235 steelby infrared thermography and energy approach[J].Journal of Materials Engineering,2012(12):71-76.)
[8]姚卫星.结构疲劳寿命分析[M].北京:国防工业出版社,2003.(Yao Wei-xing.Fatigue life prediction of structure[M].Beijing:National Defend Industry Press,2003.)
[9]熊伟红,向晓东,喻青.基于名义应力法的桥式起重机用钢丝绳疲劳寿命估算[J].工业安全与环保,2014,40(7):23-25.(Xiong Wei-hong,Xiang Xiao-dong,Yu Qing.Fatigue life prediction of bridge crane wire rope based on nominal stress method[J].Industrial Safety and Environmental Protection,2014,40(7):23-25.)
[10]房乐堂,李永奎.基于Solid Works的玉米收获机割台框架的疲劳分析[J].农业科技与装备,2015(4):30-32.(Fang Le-tang,Li Yong-kui.Fatigue analysis of cutting table frame of maize harvester based on Solidworks[J].Agricultural Science Technology and Equipment,2015(4):30-32.)
[11]SS Manson.Fatigue:a complex subject—some simple approximations[J].Experimental Mechanics,1965,5(7):193-226.
[2]Lillo P,Crawford C.Analysis of embedded blade root carrot and T-Bolt connections subject to cold weather conditions using a finite element model[C].ASME 2010 International Mechanical Engineering Congress and Exposition.Vancouver:ASME,2010:75-79.
[3]韩玉清,吕路勇,邢晓坡.风轮叶片叶根疲劳强度分析方法的研究[J].能源工程,2009(3):33-36.(Han Yu-qing,Lv Lu-yong,Xing Xiao-po.Research on analysis method of fatigue strength in wind blade boot[J].Energy Engineering,2009(3):33-36.)
[4]Yung-Li Lee,Jwo Pan,Richard Hathaway.Fatigue Testing and Analysis Theory and Practice[M].Burlington:Butterworth-Heinemann,2005:130-171.
[5]袁熙,李舜酩.疲劳寿命预测方法的研究现状与发展[J].航空制造技术,2005(12):80-84.(Yuan Xi,Li Shun-ming.Research status and development of forecast method of fatigue life[J].Aeronautical Manufacturing Technology,2005(12):80-84.)
[6]Peippo J.A modified nominal stress method for fatigue assessment of steel plates with thermally cut edges[D].Lappeenranta:Lappeenranta University of Technology,2015.
[7]樊俊铃,郭杏林,吴承伟.热像法和能量法快速评估Q235钢的疲劳性能[J].材料工程,2012(12):71-76.(Fan Jun-ling,Guo Xing-lin,Wu Cheng-wei.Fast evaluation of fatigue behavior of Q235 steelby infrared thermography and energy approach[J].Journal of Materials Engineering,2012(12):71-76.)
[8]姚卫星.结构疲劳寿命分析[M].北京:国防工业出版社,2003.(Yao Wei-xing.Fatigue life prediction of structure[M].Beijing:National Defend Industry Press,2003.)
[9]熊伟红,向晓东,喻青.基于名义应力法的桥式起重机用钢丝绳疲劳寿命估算[J].工业安全与环保,2014,40(7):23-25.(Xiong Wei-hong,Xiang Xiao-dong,Yu Qing.Fatigue life prediction of bridge crane wire rope based on nominal stress method[J].Industrial Safety and Environmental Protection,2014,40(7):23-25.)
[10]房乐堂,李永奎.基于Solid Works的玉米收获机割台框架的疲劳分析[J].农业科技与装备,2015(4):30-32.(Fang Le-tang,Li Yong-kui.Fatigue analysis of cutting table frame of maize harvester based on Solidworks[J].Agricultural Science Technology and Equipment,2015(4):30-32.)
[11]SS Manson.Fatigue:a complex subject—some simple approximations[J].Experimental Mechanics,1965,5(7):193-226.