东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (9): 1022-1025.DOI: -

• 论著 • 上一篇    下一篇

压气机盘疲劳可靠性数字仿真分析

钱文学;尹晓伟;何雪浤;谢里阳;   

  1. 东北大学机械工程与自动化学院;东北大学机械工程与自动化学院;东北大学机械工程与自动化学院;东北大学机械工程与自动化学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-09-15 发布日期:2013-06-23
  • 通讯作者: Qian, W.-X.
  • 作者简介:-
  • 基金资助:
    高等学校博士学科点专项科研基金资助项目(20050145027)

Digital simulation analysis of fatigue reliability of compressor disk

Qian, Wen-Xue (1); Yin, Xiao-Wei (1); He, Xue-Hong (1); Xie, Li-Yang (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-09-15 Published:2013-06-23
  • Contact: Qian, W.-X.
  • About author:-
  • Supported by:
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摘要： 以多轴疲劳的临界平面法为基础,应用随机有限元法确定了压气机盘榫槽部位应力的分布参数,通过标准试样的应变控制低循环疲劳试验确定了材料参数的分布,采用数字仿真分析技术,得到了压气机盘寿命的分布形式和分布参数,建立了压气机盘疲劳可靠性模型.由仿真分析结果可知此方法是可行的,它可以有效降低压气机盘的试验费用,缩短试验周期,具有较高的精度.

关键词: 压气机盘, 可靠度, 临界平面法, 多轴疲劳, 数字仿真

Abstract: It is of significance to study the reliability of compressor disk which is a key rotating part of aeroengine and its failure often causes disastrous result. The distribution parameters of stress at the compressor disk mortises were determined with stochastic finite element method. And several strain control low cycle fatigue tests were done with standard samples to determine the parameter distributions of disk material. Based on the critical plane approach which is a kind of multiaxial fatigue models and using digital simulation technique, the life distribution and distribution parameters of the compressor disk can be obtained so as to build a reliability model of the compressor disk. The simulation results showed that the method proposed is available to get a more accurate result in addition to reducing the cost of disk test and shorting the test period.

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