Distribution characteristic of durability load accumulation based on changeable task frequency mixing

ZHAO Fu-xing; QIU Dong; YANG Xing-yu; ZHENG Xiao-mei

doi:10.13224/j.cnki.jasp.2014.11.025

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Distribution characteristic of durability load accumulation based on changeable task frequency mixing

更新时间：2026-07-07

- Distribution characteristic of durability load accumulation based on changeable task frequency mixing
- Vol. 29, Issue 11, Pages: 2722-2728(2014)
- 作者机构：
  
  1. 北京航空工程技术研究中心,北京,100076
  2. 中国人民解放军空军装备部可靠性办公室,北京,100843
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2014.11.025
  CLC：
- Published：2014
- 稿件说明：
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赵福星, 邱栋, 杨兴宇, 郑小梅. 变任务混频寿命相关载荷累积量分布特性[J]. 航空动力学报, 2014, 29(11): 2722-2728.

doi: 10.13224/j.cnki.jasp.2014.11.025
赵福星, 邱栋, 杨兴宇, 郑小梅. 变任务混频寿命相关载荷累积量分布特性[J]. 航空动力学报, 2014, 29(11): 2722-2728. DOI： 10.13224/j.cnki.jasp.2014.11.025.

doi: 10.13224/j.cnki.jasp.2014.11.025 DOI：

摘要

在基于固定任务混频的寿命相关载荷累积量分布特性研究成果的基础上

推导了变任务混频条件下的寿命相关载荷累积量分布特性

结果表明:变任务混频的载荷参数累加量分布函数也是趋于正态分布.并采用数值方法模拟实际飞行过程中变任务混频条件下寿命相关载荷的累积过程

模拟结果和理论结果吻合良好

进一步验证了分析结果的正确性.该结果可用于变任务混频下的寿命可靠性预测.

Abstract

Based on results of distribution characteristic of durability load accumulation of fixed task frequency mixing

distribution characteristic of durability load accumulation based on changeable task frequency mixing was deduced. Results show that distribution function of durability load accumalation of changeable task frequency mixing tends to be normal as well. The process of durability load accumulation with changeable task frequency mixing in real flying operation was demonstrated by numerical simulation

and the numerical results coincide with the theoretical results

which further demonstrates the analyzed results. Results can be used in life reliability forecasting based on changeable task frequency mixing.

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Graduate School,Nanjing University of Aeronautics and Astronautics,Najing

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