Fatigue life scatter factor analysis for time truncated zero-failure data based on Weibull distribution

ZHANG Yong-bo; FU Hui-min; WANG Zhi-hua

Chinese

您当前的位置：

首页 >

文章列表页 >

Fatigue life scatter factor analysis for time truncated zero-failure data based on Weibull distribution

更新时间：2026-07-07

- Fatigue life scatter factor analysis for time truncated zero-failure data based on Weibull distribution
- Vol. 27, Issue 4, (2012)
- 作者机构：
  
  北京航空航天大学小样本技术研究中心,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
移动端阅览
ZHANG Yong-bo, FU Hui-min, WANG Zhi-hua. Fatigue life scatter factor analysis for time truncated zero-failure data based on Weibull distribution[J]. 2012, 27(4).
DOI：

ZHANG Yong-bo, FU Hui-min, WANG Zhi-hua. Fatigue life scatter factor analysis for time truncated zero-failure data based on Weibull distribution[J]. 2012, 27(4). DOI：

摘要

提出一种Weibull分布定时无失效数据疲劳寿命分散系数修正方法

定义了定时无失效数据情形下分散系数的修正系数

推导了其计算公式.定时无失效数据与完全数据截然不同

因此其疲劳寿命分散系数明显不同

从疲劳分散系数的定义出发

分别对定时无失效数据情形下基于平均寿命、特征寿命、中位值寿命、最小寿命及最大寿命的两参数Weibull分布疲劳寿命分散系数进行了修正.最后对完全数据与定时无失效数据条件下分散系数计算数值进行了对比分析

结果表明分散系数的修正充分利用了产品的寿命信息

提高了产品安全寿命的预测精度

且修正系数易于计算

便于工程应用.

Abstract

A method was introduced for correction of fatigue life scatter factor based on time truncated zero-failure data contributing to Weibull distribution. The formula of scatter factor correction coefficient was defined and proved detailedly following time truncated zero-failure data. For the completed date is basically different from the truncated zero-failure data

their fatigue life scatter factor is significantly different. Therefore

according to the definition of fatigue life scatter factor

five kinds of fatigue life scatter factors was corrected

which based on average life

character life

median life

mini life

max life respectively for two parameter Weibull distribution of time truncated zero-failure data. A comparison of fatigue life scatter factor between the complete data was introduced for analysis

and the results show that the method implied in this paper can fully make use of the information of time truncated zero-failure data

and improve the forecasting precision of safe fatigue life significantly. Also the correction coefficient is easy for calculation and convenient for engineering.

关键词

Keywords

references

Views

543

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Life scatter factor of time truncated zero-failure data subjected to normal distribution

Analysis method for the stress fatigue probability life of a disk considering size effect

Method of reliability analysis for time truncated zero-failure data based on normal distribution

Life scatter factor method based on the kth order experimental life with logarithm normal distribution

Effect of different shot peening intensities on fatigue resistance of TC17 titanium alloy

Related Author

LU Shan

ZHANG Hong

TANG Jun-xing

WANG Chun-guang

LU Xiao-yan

LU Shan

Jiali BU

Yang LÜ

Related Institution

School of Power and Energy,Northwestern Polytechnical University

School of Engine and Energy, Northwestern Polytechnical University

Shenyang Engine Research Institute，Aero Engine Corporation of China

Beijing Aerospace Propulsion Institute，China Aerospace Science and Technology Corporation

Laboratory of Science and Technology on Cryogenic Liquid Propulsion，Beijing Aerospace Propulsion Institute，China Aerospace Science and Technology Corporation

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰