航空学报 > 1996, Vol. 17 Issue (3): 297-301

雨流-回线法及二维疲劳载荷分布假设检验

熊峻江, 高镇同   

  1. 北京航空航天大学固体力学研究所,北京,100083
  • 收稿日期:1994-11-07 修回日期:1995-04-08 出版日期:1996-06-25 发布日期:1996-06-25

RAINFLOW-LOOP METHOD AND THE HYPOTHESIS TEST FOR THE TWO-DIMENSIONAL DISTRIBUTION OF THE FATIGUE LOAD

Xiong Junjiang, Gao Zhentong   

  1. Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing,100083
  • Received:1994-11-07 Revised:1995-04-08 Online:1996-06-25 Published:1996-06-25

摘要: 提出对实测载荷谱进行计数处理的雨流-回线法,使用该法能够简便地将实测载荷谱分离出独立的完整应力循环 ;并提出了二维疲劳载荷分布假设检验及其参数估计方法。最后,给出了应用实例

关键词: 雨流-回线法, 二维疲劳载荷, 假设检验, 参数估计

Abstract: A rainflow loop method to make counting treament to load spectrum of actual measurement is presented. By means of this method, the load spectrum can be conveniently separated into the complete and independent stress cycles. A hypothesis test method for the two dimensional fatigue load distribution and a parameter estimation method are given. At last, their practical examples are presented.

Key words: rainflow-loop method, two-dimensional fatigue load, hypothesis test, parameter estimation

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