航空学报 > 1993, Vol. 14 Issue (8): 412-415

采用梁元的加强框结构可靠度计算

宋笔锋, 冯元生   

  1. 西北工业大学502教研室,西安 710072
  • 收稿日期:1991-09-04 修回日期:1992-04-27 出版日期:1993-08-25 发布日期:1993-08-25

RELIABILITY ANALYSIS OF A STIFFENED FRAME STRLCTURE BY USING BEAM ELEMENT

Song Bi-feng, Feng Yuan-sheng   

  1. Faculty 502, Northwestern Polvtechnical University. Xi'an, 710072
  • Received:1991-09-04 Revised:1992-04-27 Online:1993-08-25 Published:1993-08-25

摘要: 以梁元为可靠性分析单元建立了一种新的加强框结构的可靠性计算模型,采用可靠性理论方面的新成果进行了分析计算,研究了若干参数(如可靠性分析单元个数、元件强度差异系数和相关系数坟外载荷差异系数)对计算结果的影响,为加强框设计提供了依据。

关键词: 梁元, 加强框, 可靠性

Abstract: In this paper, a new reliability analysis model of a stiffened frame structure is established by adopting beam element as the reliability analysis element. The advanced theory is employed to compute the reliability of the structure.The effects on the computational results of several constants c, for example, the number of element n. the dispersion coefficient of element strength VRe , the relative coefficient of element strength XG and the dispersion coefficient of external load Vs are studied.The computational results show that the model of this paper is right and the methods adopted are efficient and the results are very useful in the design of the structure.

Key words: beam element, stiffened trame structure, reliablity