| 挤压强化技术在歼击机机翼油箱隔板延寿中的应用 |
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| 引用本文： | 刘文珽,李锦华.挤压强化技术在歼击机机翼油箱隔板延寿中的应用[J].航空学报,1991,12(2):112-114. |
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| 作者姓名： | 刘文珽 李锦华 |
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| 作者单位： | 北京航空航天大学
(刘文珽)，成都飞机公司(李锦华) |
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| 摘 要： | 1.引言 为确保某歼击机机翼油箱隔板达到规定的使用寿命,在对其疲劳关键部位——下耳片螺栓孔进行修理时采用挤压强化技术。为检验挤压强化的增寿效果,选取适当的挤压参数,采用4组模拟试件,第一组不进行挤压,标记为NCW;另三组分别用不同的挤压参数进行挤压强化,分别标记为CW_1、CW_2、CW_3,其挤压量依次为孔径的1.04％、1.23％
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| 关 键 词： | 挤压强化 载荷谱 疲劳寿命 |
APPLICATION OF EXTRUSION STRENGTHENING TECHNIQUE ON INCREASING LIFE OF WING-OIL-DIVISION |
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| Beijing University of Aeronautics and AstronauticsLiu WentingChengdn Aircraft Company Li Jinhua.APPLICATION OF EXTRUSION STRENGTHENING TECHNIQUE ON INCREASING LIFE OF WING-OIL-DIVISION[J].Acta Aeronautica et Astronautica Sinica,1991,12(2):112-114. |
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| Authors: | Beijing University of Aeronautics and AstronauticsLiu WentingChengdn Aircraft Company Li Jinhua |
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| Institution: | Beijing University of Aeronautics and AstronauticsLiu WentingChengdn Aircraft Company Li Jinhua |
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| Abstract: | Fatigue tests of analog specimens in which holes are extruded by different extrusion parameters are carried out under random load spectrum. Statistical comparison and analysis of test data show that extrusion strengthening significantly increases fatigue life of wing-oil-division. Also optimal extrusion parameters are chosen. |
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| Keywords: | extrusion strengthening load spectrum fatigue life |
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