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论文:2017,Vol:35,Issue(4):615-621 |
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引用本文： |
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徐绯, 任选其, 李亚南, 高向阳, 吕军. 积水跑道飞机翻边轮胎溅水机理研究[J]. 西北工业大学学报 |
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Xu Fei, Ren Xuanqi, Li Ya'nan, Gao Xiangyang, Lü Jun. Mechanism of Water Spray Generated by Aircraft Chine Tire Running on Wet Runway[J]. Northwestern polytechnical university |
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| 积水跑道飞机翻边轮胎溅水机理研究 |
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| 徐绯1, 任选其1, 李亚南1, 高向阳1, 吕军2 |
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1. 西北工业大学 航空学院, 陕西 西安 710072;
2. 中国商飞上海飞机设计研究院, 上海 201210 |
| 摘要: |
| 轮胎滚动引起跑道积水飞溅进入发动机将导致发动机喘振甚至熄火，已有的飞机滑跑试验和经验证明采用具有翻边设计的轮胎可减小溅水与地面的夹角，减小发动机进水的可能性，但对翻边抑制溅水相关机理的研究仍十分匮乏。采用有限元软件LS-DYNA中的SPH/FEM耦合方法对翻边轮胎溅水机理开展分析计算。首先改进了轮胎数值模型和加载方式并验证了模型的有效性，研究了翻边轮胎溅水随滑跑速度的变化规律。其次基于特征位置水粒子的速度变化，分析了翻边抑制溅水的作用机理，通过比较不同深度水深的溅水速度分布说明翻边的作用。最后基于翻边高度和角度对轮胎溅水影响的研究，对优化的翻边构型进行了探索。 |
| 关键词:
飞机轮胎
翻边
溅水
光滑粒子动力学
溅水机理
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| Mechanism of Water Spray Generated by Aircraft Chine Tire Running on Wet Runway |
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| Xu Fei1, Ren Xuanqi1, Li Ya'nan1, Gao Xiangyang1, Lü Jun2 |
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1. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
2. Shanghai Aircraft Design and Research Institute, Shanghai 201210, China |
| Abstract: |
| The spray water generated by aircraft tire might lead to the compressor surge or even flameout if it entering aircraft engines. The previous test and numerical simulation result show that chine tire could reduce the angle between spray water and ground, which could reduce the chance of water entering engines. The related researches are still inadequate nowadays. In this paper, the mechanism of water spray that is influenced by chines is investigated by coupled smoothed particle hydrodynamics (SPH) and finite element (FEM) method in LS-DYNA software. Firstly, the numerical model of aircraft tire and the load applying method are improved and validated, and then the model is used to analyze the influence of aircraft velocity on water spray angle. Secondly, based on the analysis of velocity of fluid particles, the water deflecting mechanism of chine is proposed. The velocity variation of fluid particles with different water depth is compared to illustrate this mechanism. At last, an optimized shape of chine is proposed based on the study of the influence of chine height and angle on water spray. |
| Key words:
aircraft tire
chine
water spray
SPH
spray mechanism
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| 收稿日期: 2017-02-23
修回日期:
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| DOI: |
| 基金项目: 航空科学基金（2016ZD53038）与中央高校基本科研业务费专项资金（G2017KY0003）资助 |
| 通讯作者:
Email： |
| 作者简介: 徐绯(1970—),女,西北工业大学教授,主要从事SPH计算方法及其应用研究。
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| 作者相关文章 |
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| 徐绯 在本刊中的所有文章 |
| 任选其 在本刊中的所有文章 |
| 李亚南 在本刊中的所有文章 |
| 高向阳 在本刊中的所有文章 |
| 吕军 在本刊中的所有文章 |
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参考文献: |
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