基于ANSYS Workbench的某型航空发动机吊挂结构有限元分析
|
摘要
吊挂结构的强度决定了航空发动机工作过程的可靠性和稳定性。使用ANSYS Workbench软件对吊挂结构进行静力分析、模态分析和疲劳分析。静力状态下,吊挂结构的形变较小。吊挂结构的前6阶振型模态分析显示,第6个节点时结构有明显弯曲扭转变形,第1~6节点的固有频率都避开了发动机的工作频率。疲劳分析结果显示了吊挂结构在循坏载荷下的疲劳寿命云图,安全系数和疲劳敏感特性曲线,当载荷变化幅度在57.5%~87.5%时,结构的寿命快速下降。有限元分析结果得到吊挂结构在不同工况下的受力及变形情况,为发动机的性能试验提供了理论指导。
The strength of pylon determines the reliability and stability of aero engine. Static analysis,modal analysis and fatigue analysis of the pylon are carried out by ANSYS Workbench. In static state,deformation of the pylon is small. The first 6 modes of the pylon are analyzed by modal analysis. The sixth node has obvious bending and torsion deformation,and the natural frequency of the 6 nodes avoid the working frequency of the engine. Results of the fatigue analysis show the fatigue life,the safety coefficient and the fatigue sensitivity curve of the pylon under the cyclic load. When the load varies around 57.5% ~ 87.5%,life of the pylon decreases rapidly. Results of the finite element analysis show the stress and deformation of the pylon under different working conditions,which would provide theoretical guidance for engine performance test.
The strength of pylon determines the reliability and stability of aero engine. Static analysis,modal analysis and fatigue analysis of the pylon are carried out by ANSYS Workbench. In static state,deformation of the pylon is small. The first 6 modes of the pylon are analyzed by modal analysis. The sixth node has obvious bending and torsion deformation,and the natural frequency of the 6 nodes avoid the working frequency of the engine. Results of the fatigue analysis show the fatigue life,the safety coefficient and the fatigue sensitivity curve of the pylon under the cyclic load. When the load varies around 57.5% ~ 87.5%,life of the pylon decreases rapidly. Results of the finite element analysis show the stress and deformation of the pylon under different working conditions,which would provide theoretical guidance for engine performance test.
引文
[1]程耀楠,张悦,安硕,等.航空发动机典型零件加工技术与刀具应用分析[J].哈尔滨理工大学学报,2014,19(3):110-116.
[2]唐维.民用飞机发动机吊挂连接件强度试验与分析[D].南京:南京航空航天大学,2014.
[3]付建军.HSE07型摆动液压马达的结构与强度分析[D].内蒙古:内蒙古科技大学,2014.
[4]李丽芬.基于ANSYS Workbench的施工升降机大跨度运输通道优化设计[D].成都:西华大学,2015.
[5]田杰.某液压机多工况下结构强度计算的比较研究及实验验证[D].长沙:中南大学,2014.
[6]郑继波.民航飞机发动机吊挂结构优化设计[D].武汉:武汉理工大学,2013.
[7]凌桂龙,丁金滨,温正.ANSYS Workbench 13.0从入门到精通[M].北京:清华大学出版社,2012.
[8]高长银,李万全,刘丽.ANSYS Workbench 14.5建模与仿真从入门到精通[M].北京:电子工业出版社,2014.
[9]袁越锦,徐英英,张艳华.ANSYS Workbench 14.0建模仿真技术及实例详解[M].北京:化学工业出版社,2014.
[10]马兴亮,王会利,张哲.一种考虑力学因素的钢结构腐蚀疲劳寿命评估方法[J].钢结构,2015,30(11):94-97.
[11]邢亮亮,仲梁维.基于ANSYS Workbench的管道疲劳强度分析及优化[J].软件导刊,2017,16(7):145-148.
[2]唐维.民用飞机发动机吊挂连接件强度试验与分析[D].南京:南京航空航天大学,2014.
[3]付建军.HSE07型摆动液压马达的结构与强度分析[D].内蒙古:内蒙古科技大学,2014.
[4]李丽芬.基于ANSYS Workbench的施工升降机大跨度运输通道优化设计[D].成都:西华大学,2015.
[5]田杰.某液压机多工况下结构强度计算的比较研究及实验验证[D].长沙:中南大学,2014.
[6]郑继波.民航飞机发动机吊挂结构优化设计[D].武汉:武汉理工大学,2013.
[7]凌桂龙,丁金滨,温正.ANSYS Workbench 13.0从入门到精通[M].北京:清华大学出版社,2012.
[8]高长银,李万全,刘丽.ANSYS Workbench 14.5建模与仿真从入门到精通[M].北京:电子工业出版社,2014.
[9]袁越锦,徐英英,张艳华.ANSYS Workbench 14.0建模仿真技术及实例详解[M].北京:化学工业出版社,2014.
[10]马兴亮,王会利,张哲.一种考虑力学因素的钢结构腐蚀疲劳寿命评估方法[J].钢结构,2015,30(11):94-97.
[11]邢亮亮,仲梁维.基于ANSYS Workbench的管道疲劳强度分析及优化[J].软件导刊,2017,16(7):145-148.