APPLICATIONS OF QUASI-STATIC METHOD IN STATIC FAILURE SIMULATION FOR LARGE AIRCRAFT WINGBOX

YU Ming; LING XiaoTao; WANG QianPing

doi:10.16579/j.issn.1001.9669.2017.04.026

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APPLICATIONS OF QUASI-STATIC METHOD IN STATIC FAILURE SIMULATION FOR LARGE AIRCRAFT WINGBOX

更新时间：2022-09-22

- APPLICATIONS OF QUASI-STATIC METHOD IN STATIC FAILURE SIMULATION FOR LARGE AIRCRAFT WINGBOX
- Journal of Mechanical Strength Vol. 39, Issue 4, Pages: 893-898(2017)
- 作者机构：
  
  1. 中航工业第一飞机设计研究院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.04.026
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YU Ming, LING XiaoTao, WANG QianPing. APPLICATIONS OF QUASI-STATIC METHOD IN STATIC FAILURE SIMULATION FOR LARGE AIRCRAFT WINGBOX. [J]. 39(4):893-898(2017)
DOI：

YU Ming, LING XiaoTao, WANG QianPing. APPLICATIONS OF QUASI-STATIC METHOD IN STATIC FAILURE SIMULATION FOR LARGE AIRCRAFT WINGBOX. [J]. 39(4):893-898(2017) DOI： 10.16579/j.issn.1001.9669.2017.04.026.

摘要

机翼盒段结构静强度问题复杂,开展盒段承载特性研究,对机翼结构精细化设计、重量优化及降低研制成本等具有重要意义。借助显格式技术,考虑材料非线性及损伤特性,在准静态限制内对典型的机翼盒段试验件的静力加载破坏过程进行了分析仿真。分析得到的盒段应变分布及破坏强度均与试验结果吻合度较好。研究结果为评估飞机装配结构的极限强度提供了一定参考。

Abstract

The strength problems of large-aircraft wingbox is complex.Studying the bearing characteristics of wingbox,plays an important role in wing structure refined design,weight optimization and development cost saving.Based on the explicit time integration,this paper simulated the static loading process of typical wingbox section until failure in quasi-static limits,while taking the material nonlinearity and damage characteristics into consideration.Both the strain distribution and the strength prediction agree well with the experimental results.The study provides a reference for evaluating the ultimate strength of aircraft assembly.

关键词

机翼盒段准静态后屈曲加筋壁板非线性有限元极限承载力

Keywords

WingboxQusi-staticPost-bucklingStiffened panelsNonliner FEMUltimate strength

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