| 后机身静力试验加载端盖设计与优化 |
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| 引用本文： | 孙喜桂,聂小华,常亮,韩涛.后机身静力试验加载端盖设计与优化[J].工程与试验,2020(1):65-67. |
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| 作者姓名： | 孙喜桂 聂小华 常亮 韩涛 |
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| 作者单位： | 中国飞机强度研究所 |
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| 基金项目： | 民用飞机专项科研项目(MJ-2017-F-020)。 |
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| 摘 要： | 根据加载端盖需要满足的试验加载以及约束要求,设计了一种后机身静力试验加载端盖结构。采用梁单元模拟加载端盖中的螺栓连接,板壳元模拟加载端盖中的对接端板、"工"字型钢以及盖板的建模方法,对其进行有限元分析,给出分析结果和强度校核结论。最后根据有限元分析结果,针对"工"字型钢安全系数低的问题对其进行了优化,最终使其达到设计要求,为该型飞机后机身静力试验加载端盖的设计优化提供了重要支持。
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| 关 键 词： | 加载端盖 有限元分析 强度校核与优化 |
Design and Optimization of Static Test Loading End Cover of Rear Fuselage |
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| Sun Xigui,Nie Xiaohua,Chang Liang,Han Tao.Design and Optimization of Static Test Loading End Cover of Rear Fuselage[J].ENGINEERING & TEST,2020(1):65-67. |
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| Authors: | Sun Xigui Nie Xiaohua Chang Liang Han Tao |
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| Affiliation: | (Aircraft Strength Research Institute of China,Xi’an Shaanxi 710065,China) |
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| Abstract: | According to the test load and constraint requirement of loading end cover,this paper designs a static test load end cover structure of rear fuselage.Using beam element to simulate the bolt connection,and shell element is used to simulate the butt end plate,I-beam and cover plate.Then the finite element analysis is carried out.Based on the finite element analysis result,it is optimized for the low safety factor of I-beam,after the optimization,it meets the requirement of design.This paper provides an important support for design and optimize the static test load end cover structure of the rear fuselage. |
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| Keywords: | loading end cover finite element analysis strength checking and optimization |
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