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风扇叶片丢失激励下转子-支承系统结构安全性设计策略

洪杰 许美玲 马艳红 梁智超 张力

洪杰, 许美玲, 马艳红, 梁智超, 张力. 风扇叶片丢失激励下转子-支承系统结构安全性设计策略[J]. 航空动力学报, 2016, 31(11): 2723-2730. doi: 10.13224/j.cnki.jasp.2016.11.021
引用本文: 洪杰, 许美玲, 马艳红, 梁智超, 张力. 风扇叶片丢失激励下转子-支承系统结构安全性设计策略[J]. 航空动力学报, 2016, 31(11): 2723-2730. doi: 10.13224/j.cnki.jasp.2016.11.021
HONG Jie, XU Mei-ling, MA Yan-hong, LIANG Zhi-chao, ZHANG Li. Structure safety design strategy of rotor-support system due to fan blade loss[J]. Journal of Aerospace Power, 2016, 31(11): 2723-2730. doi: 10.13224/j.cnki.jasp.2016.11.021
Citation: HONG Jie, XU Mei-ling, MA Yan-hong, LIANG Zhi-chao, ZHANG Li. Structure safety design strategy of rotor-support system due to fan blade loss[J]. Journal of Aerospace Power, 2016, 31(11): 2723-2730. doi: 10.13224/j.cnki.jasp.2016.11.021

风扇叶片丢失激励下转子-支承系统结构安全性设计策略

doi: 10.13224/j.cnki.jasp.2016.11.021
详细信息
    作者简介:

    洪杰(1965-),男,北京人,教授、博士生导师,博士,从事航空发动机结构完整性与可靠性研究.

  • 中图分类号: V23

Structure safety design strategy of rotor-support system due to fan blade loss

  • 摘要: 以高涵道比涡扇发动机风扇叶片丢失载荷激励下的转子-支承系统为研究对象,提出了一套结构安全性设计策略,即通过支承方案与载荷分配、变刚度支承结构和支承结构变形控制,结合转子结构动力学特性设计,实现转子结构安全性设计.研究表明:风扇后支点采用变刚度支承结构设计,能够在转子减速停车过程中减小风扇局部振动临界转速与相应振幅.通过设计滚珠轴承支承锥壳锥角,能够使支承具有较高的轴向承载能力并减小转轴变形对滚珠轴承的影响.轴承座底部与转轴间采用鼓形配合面连接设计,能够在大弯矩作用下通过配合面相互滑移避免支承随转轴变形,保证轴承安全.研究结果可为恶劣载荷作用下高涵道比涡扇发动机结构安全性设计提供依据.

     

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出版历程
  • 收稿日期:  2015-02-02
  • 刊出日期:  2016-11-28

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