| 航空液压泵加速寿命试验现状及方法研究（连载2）航空液压泵典型失效模式及加速方法 |
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| 引用本文： | 马纪明,阮凌燕,付永领,陈娟,祁晓野,罗经.航空液压泵加速寿命试验现状及方法研究（连载2）航空液压泵典型失效模式及加速方法[J].液压与气动,2015,0(7):1-6. |
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| 作者姓名： | 马纪明 阮凌燕 付永领 陈娟 祁晓野 罗经 |
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| 作者单位： | 1. 北京航空航天大学， 北京100191; 2. 金城南京机电液压工程研究中心， 江苏南京211140；
3. 北京机械工业自动化研究所， 北京100120 |
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| 基金项目： | 国家自然科学基金(51205007)；质检公益性行业科研专项（201510202 07） |
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| 摘 要： | 液压柱塞泵有磨损、疲劳和老化三种典型失效模式，以航空恒压变量液压柱塞泵为对象，介绍其典型失效模式及加速方法，以及各故障模式的外在表现。基于磨损、疲劳、老化失效相关寿命模型，分别分析了不同故障模式的敏感应力。然后，分别阐述了开展加速寿命试验常用的加速手段，包括增加载荷（转速、输出压力、排量）和劣化运行环境（温度、介质污染度）两种方式，对比分析了各种加速方式的优点和局限性。最后总结了开展加速寿命试验的一些基本准则。
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| 关 键 词： | 液压柱塞泵 磨损 疲劳 老化 加速寿命试验 |
| 收稿时间： | 2015-06-02 |
Typical Failure Modes and Accelerated Lifetime Test Methods for Aircraft Hydraulic Pump |
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| MA Ji ming,RUAN Ling yan,FU Yong ling,CHEN Juan,QI Xiao ye,LUO Jing.Typical Failure Modes and Accelerated Lifetime Test Methods for Aircraft Hydraulic Pump[J].Chinese Hydraulics & Pneumatics,2015,0(7):1-6. |
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| Authors: | MA Ji ming RUAN Ling yan FU Yong ling CHEN Juan QI Xiao ye LUO Jing |
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| Affiliation: | 1. Beihang University, Beijing100191;
2. Nanjing Electrical and Hydraulic Engineering Research Center, Nanjing, Jiangsu211140;
3. Beijing Research Institute of Automation for Machinery Industry, Beijing100120 |
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| Abstract: | Wear, fatigue, and thermal aging are three typical failure modes of the pump. A typical axial hydraulic pump utilized in the aircraft is selected as the study case to present the normal failure modes and accelerated lifetime test (ALT) methods. Components related with the three typical failures are firstly introduced. According to the classical models on wear, fatigue, and thermal aging, sensitive stresses are analyzed. Then, some common stresses, such as rotation speed, outlet pressure, displacement, temperature, contamination, and so on, applied on the pump in the accelerated lifetime test are presented. The advantages and shortcomings are compared respectively. Finally, some specifications on ALT of hydraulic pump are summarized. |
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