东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (3): 378-382.DOI: 10.12068/j.issn.1005-3026.2016.03.016

• 机械工程 • 上一篇    下一篇

基于激励阶次的失谐叶盘振动响应局部化研究

张宏远1, 袁惠群2, 寇海江1   

  1. (1. 东北大学 机械工程与自动化学院, 辽宁 沈阳110819; 2. 东北大学 理学院, 辽宁 沈阳110819)
  • 收稿日期:2015-01-14 修回日期:2015-01-14 出版日期:2016-03-15 发布日期:2016-03-07
  • 通讯作者: 张宏远
  • 作者简介:张宏远(1980-), 男, 辽宁铁岭人,东北大学博士研究生,沈阳理工大学讲师; 袁惠群(1954-),男,河北石家庄人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51275081);国家自然科学基金重点资助项目(51335003); 沈阳市科技计划项目(F15-199-1-01).

Study of Localization for the Forced Vibration of Mistuned Bladed Disks Based on Engine Orders of Excitation

ZHANG Hong-yuan1, YUAN Hui-qun2, KOU Hai-jiang1   

  1. 1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China; 2. School of Sciences, Northeastern University, Shenyang 110819, China.
  • Received:2015-01-14 Revised:2015-01-14 Online:2016-03-15 Published:2016-03-07
  • Contact: YUAN Hui-qun
  • About author:-
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摘要: 为了评估不同激励阶次和不同失谐标准差对叶盘系统结构振动的局部化影响,针对航空发动机压气机叶盘系统有限元模型, 考虑榫槽和榫头的非线性接触,采用子结构模态综合法,通过引入相对振动局部化因子,研究了在不同激励阶次下的谐调和失谐两种情况下叶盘系统振动响应,分析不同失谐标准差下失谐叶盘系统的振动响应局部化特性,讨论了激励阶次对失谐叶盘系统位移和应变能的影响规律.结果表明,激励阶次对失谐叶盘系统频率、位移和应变能分布影响显著,随着激励阶次的增加,相对局部化因子呈现先增大再减小的趋势.

关键词: 航空发动机, 叶盘, 失谐, 激励阶次, 相对局部化因子

Abstract: In order to evaluate the effect of localization for various engine orders of excitation and levels of mistuning on mistuned bladed disks, the finite element model of aero-engine compressor’s bladed disks was established. Considering the non-linear contact problem of tenon and mortise, the localization of various engine orders of excitation of mistuned bladed disks was studied by adopting the component mode synthesis method and introducing the relative localization factors. The effect of displacement and strain energy for various engine orders of excitation of mistuned bladed disks was discussed, whose results indicated that the engine orders of excitation have significant effect on frequency, displacement and strain energy. With the increase of engine orders of excitation, the relative localization factors tend to first increase and then drop.

Key words: aero-engine, bladed disk, mistuning, engine order of excitation, relative localization factor

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