毕业设计论文
沈阳航空航天大学继 续教育学院 题 目: 航空发动机状态监控与故障诊断技术
系 别: 机电工程系 专 业: 飞行器动力工程 班 级:
姓 名: 指导教师:
2013年 4 月 29 日
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毕业设计课题任务书
专业： 飞行器动力工程 学生姓名： 班级： 指导教师：
一、题目：
航空发动机状态监控与故障诊断技术
二、要求：
1、字数8000-10000
2、内容完整，论述清晰、图表规范 3、论文内容不能涉密
三、进度计划要求：
1、了解毕业设计要求、调查研究，收集相关资料、
2、确定毕业设计课题 3、撰写毕业设计论文提纲 4、编写毕业设计草稿 5、整理毕业设计论文 6、审定毕业设计论文 7、答辩
1.0周（第1 周进行） 1.0周（第2 周进行） 1.0周（第 3 周进行） 2.0周（第 4-5周进行） 2.0周（第6-7 周进行） 2.0周（第 8-9 周进行） 10周
五、毕业设计时间：
2013年2月27日——2013年4月 29 日
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附件：
摘 要
按照传统时间表的维护系统是耗钱、耗力的，并且只能给出不全面的对发动机故障的检测和诊断。现代飞机发动机的监控和诊断系统具有让维护人员获得关于探测和诊断发动机故障的有价值信息的能力。在本文中，讨论现代航空发动机监控系统和故障诊断系统的组成，功能，以及相关的监控和分析参数。讨论的航空发动机滑油分析系统的原理与构成。最后，通过CFM56-3C滑油碎屑分析作为实例，阐述了发动机滑油分析的具体步骤和结论，为发动机的监控趋势分析提供了理论依据。
关键词：航空发动机；状态监控；故障诊断；滑油分析
目 录
第一章 引言 ·····················································································································1 1.1 先进发动机的可靠性技术 ·················································································1 1.2 现代发动机状态监视与故障诊断技术 ·····························································1 第二章 状态监视与故障诊断系统 ·················································································4 2.1状态监视与故障诊断系统组成 ··········································································4
2.1.1 系统组成 ································································································ 4 2.1.2 系统过程 ································································································ 4
2.2 系统功能和效益 ·································································································6
2.2.1发动机状态监控与故障诊断系统功能 ················································· 6 2.2.2发动机状态监控与故障诊断系统效益 ················································· 7
2.3 状态监视和故障诊断方法 ·················································································9 2.4 先进发动机状态监视和故障诊断系统 ···························································10
2.4.1 监控参数 ······························································································ 10 2.4.2系统功能和特点 ··················································································· 11
2.5 发展前景 ···········································································································13 第三章 滑油系统监视与分析 ·······················································································15 3.1 概述 ···················································································································15
3.1.1 系统组成 ································································································ 15 3.1.2 监控内容 ································································································ 16
3.2 滑油屑末分析 ···································································································17
3.2.1 屑末的收集 ···························································································· 18 3.2.2 屑末分析 ································································································ 18
3.3 滑油光谱分析 ···································································································19
3.3.1 滑油光谱分析原理 ················································································ 19 3.3.2 取样及分析 ···························································································· 20
3.4 滑油铁谱分析 ···································································································20 3.4.1 工作原理 ·································································································· 21
3.4.2 取样及分析 ······························································································ 21 3.5 三种技术的比较 ·······························································································22 第四章 CFM56-3C发动机滑油碎屑分析 ······································································23 4.1 概述 ···················································································································23 4.2 实验分析 ···········································································································23 4.2.1体视显微镜观察 ························································································23 4.2.2 扫描电镜观察及能谱分析 ······································································ 23 4.3 结论 ···················································································································28 第五章 总结 ···················································································································29 参考文献 ·························································································································30 致 谢 ·························································································································31