航空发动机典型故障分析报告

《航空发动机典型故障分析报告》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、实用标准文案目录第1章绪论1.1发动机概述·································21.2可靠性与故障·······························21.2.1可靠性····································21.2.2故障······································21.2.3故障分析与排故方法························3第2章压气机喘振故障分析2.1概述·······································52.2喘振时的

2、现象·······························52.3喘振的根本原因·····························52.4压气机的防喘措施···························6第3章压气机转子叶片故障分析3.1概述·······································93.2压气机转子叶片受环境影响的损伤特征和有关安全准则与标准········································93.3压气机转子叶片故障模式及其分析·············103.3.1WP7系列压气机转

3、子叶片现行检查标准﹙含判废标准﹚···········································103.4WP7系列报废叶片主要失效模式统计分析·····12第4章发动机篦齿盘均压孔裂纹故障分析及预防4.1概述······································144.2篦齿盘结构与工作状态分析··················14精彩文档实用标准文案4.2.1结构分析·································144.2.2工作状态分析·····························144.2

4、.2.1工作温度高·····························144.2.2.2工作转速高·····························144.2.2.3易产生振动·····························144.3裂纹特征与产生原因分析···················154.3.1裂纹特征·································154.3.2裂纹原因分析·····························154.4结论·····································1

5、6结束语···········································17致谢·············································18文献·············································19第1章绪论1.1发动机概述二十世纪以来，特别是第二次世界大战以后，航空和空间技术有了飞跃的发展。现在，飞机已经成为一种重要的﹑不可缺少的作战武器和运输工具。飞机的飞行速度﹑高度﹑航程﹑载重量和机动作战的能力，都已达到了相当高的水平。这些成就的取得，在很大程度上取决于动力装置的发展。然而

6、，航空发动机属于高速旋转式机械，处于高转速﹑高负荷（高应力）和高温环境下工作的；发动机是飞机的心脏，是体现飞机性能的主要部件。又由于精彩文档实用标准文案发动机由许多零组件构成，即本身工作情况和外界环境都十分复杂，使发动机容易出现故障，因此航空发动机属于多发性故障的机械。经过多年的努力，在航空领域工作的研究人员已经了解和解决了发动机许多故障，然而，一些故障还是无法完全解决的，只能尽量减少故障对飞机的危害。本论文列举出发动机几种典型故障，并且尽可能的根据科学研究数据来研究分析这几种故障，给出科学的预防故障和排故方法。1.2可靠性与故障1.2.1可靠性产品在规定的条件下和规定的时

7、间内，完成规定功能的能力为产品的可靠性。所谓产品，是指任何元器件、零部件、组件、设备、分系统或系统。规定条件主要指环境条件和使用条件，如产品在工作中所承受的应力水平、温度、振动和腐蚀环境等。规定时间是指广义时间，除产品的工作小时外，还可指其循环次数等。1.2.2故障产品或产品的一部分不能或将不能完成预定功能的事件或状态。对某些产品如电子元器件、弹药等称失效。产品的故障：a.在规定的条件下，不能完成其规定的功能；b.在规定的条件下，一个或几个性能参数不能保持在规定的范围内；c.在规定的应力范围内工作时，发生产品的机械