| 激光切割对飞机蒙皮疲劳性能的影响分析 |
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| 引用本文： | 侯红玲,彭玉海,解玉坤,彭凯,张晖.激光切割对飞机蒙皮疲劳性能的影响分析[J].激光技术,2016,40(3):417-421. |
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| 作者姓名： | 侯红玲 彭玉海 解玉坤 彭凯 张晖 |
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| 作者单位： | 1.陕西理工学院 机械工程学院, 汉中 723001 |
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| 基金项目： | 陕西省自然科学基金资助项目(2014 JM7268)；陕西省教育厅科学研究计划资助项目(14JK1147) |
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| 摘 要： | 为了探索激光切割对飞机机身蒙皮材料疲劳性能的影响,采用仿真分析法和对比试验法对飞机蒙皮材料的疲劳性能进行了理论分析和实验验证,取得了飞机蒙皮材料有限元疲劳分析数据,以及机械铣削和激光切割的试件的疲劳性能测试的对比数据,同时借助扫描电镜对试件疲劳断口进行了扫描分析。结果表明,经过激光切割后飞机蒙皮材料的疲劳寿命为5.4104左右,机械铣削试件疲劳寿命为2.34105。激光切割对飞机机身蒙皮材料疲劳性能有一定的影响,但通过切缝打磨处理会提高其疲劳寿命。
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| 关 键 词： | 激光技术 激光切割 疲劳寿命 飞机蒙皮 机械切割 |
| 收稿时间： | 2015-01-26 |
Effect of laser cutting on fatigue performance of aircraft skin |
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| Abstract: | In order to explore effect of laser cutting on fatigue performance of aircraft fuselage skin , by using the method of simulation and contrast test method respectively , fatigue performance of aircraft skin material was studied by theoretical analysis and experimental verification .Analysis data of finite element fatigue of aircraft skin material , and comparison data of fatigue performance test of laser cutting specimen and mechanical milling specimen were obtained .At the same time , fatigue fracture of aircraft skin plate was scanned and analyzed by scanning electron microscope .The analysis results show that after laser cutting , fatigue life of aircraft skin material is about 5.4 ×104.After mechanical milling, fatigue life is 2.34 ×105.Laser cutting has a certain impact on fatigue performance of aircraft fuselage skin materials , but its fatigue life can increase through grinding and processing of cutting seams . |
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| Keywords: | laser technique laser cutting fatigue life aircraft skin machinery cutting |
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