文档介绍：分类号
编号
20060812109
U D C
密级
中国民航飞行学院
毕业设计(论文)
题目
in***平对置式活塞发动机振动分析
Vibration Analysis of
ing Flat-type Piston Engine
作者姓名
秦宁波
专业名称
热能与动力工程
指导教师姓名及职称
吴江工程师
提交日期
2010年6月21日
答辩日期
2010年6月23日
答辩委员会主任
评阅人
20
10
年
6
月
20
日
in***平对置式活塞发动机振动分析
学生:秦宁波指导教师:吴江
摘要
对于民航飞机而言,发动机的非正常振动会引起发动机部件过早疲劳失效,从而造成重大飞行事故,同时发动机的非正常振动也将影响到飞机的整机可靠性,使用寿命和舒适性。因此,研究发动机的振动对提高飞机、发动机的可靠性,保证飞行安全及舒适性具有重要意义。ing0-360发动机为研究对象,对曲拐机构进行动力学分析,剖析水平对置式活塞发动机产生振动的机理,分析曲轴的扭转振动和配重减振的原理,建立配重减振的数学模型,完成配重失谐的原因分析,为水平对置式活塞发动机的振动故障及配重失效机理分析奠定理论基础。in***平对置式活塞发动机振动进行分析,找出影响活塞发动机振动的因素,为活塞发动机由于振动引起的故障的诊断及维护提供理论指导,对制定减小活塞发动机振动的措施具有重要指导意义。
关键词:活塞发动机,振动,配重
Vibration analysis of ing Direct Drive Aircraft engines
Abstract:
For civil aircraft, engine non-normal vibration can cause premature fatigue failure of engine parts, so it will be resulting in seriously accident, and the non-normal vibration of the engine will affect the reliability, durability fort of aircraft. Therefore, it is very important for increasing the reliability, safety fort of aircraft. ing0-360 engines as the research object of this thesis, dynamic analyses of crankshaft mechanism are carried out, and the vibration of direct drive aircraft piston engines are analyzed, what’s more, the torsional vibration of crankshaft and counter weight damping principle are analyzed, The counter weight damping mathematical model will be established, and finishing the detune analysis of counter weight, it was laid the foundation of analyzing vibration fault and failure mechanism of counter weight. By the vibration analysis of ing direct drive aircraft piston engine to find out the factors which affecting piston engine vibration, it can provide theoretical guidance for vibration failure diagnosis and maintenance, it have important significance to make measures to reduce the vibration of piston engines, the capacity of my analysis and solve problems have been improved.
Keywords: piston engine, vibration, count