大长径比中央传动杆转子动力学特性与故障分析
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摘要
对航空发动机中央传动杆转子动力学特性进行研究,分析了中央传动杆两端花键套齿联轴器的支承刚度,在此基础上提出了考虑花键套齿联轴器横向刚度和角向刚度的转子动力学设计方法。针对发生碰磨故障的中央传动杆,在试验振动数据详尽分析的基础上,采用该设计方法对其进行了改进设计。发动机整机试验验证表明,改进后的中央传动杆工作稳定,状态良好。通过动力学特性研究以及故障分析,掌握了中央传动杆碰磨故障的简易现象表征,完善了中央传动杆的转子动力学设计技术。
The rotor dynamic characteristics of radial driving shaft were studied, the supporting stiffness of the spline coupling at both ends of radial driving shaft were analyzed in detail. On this basis, a rotor dynamic design method considering lateral stiffness and angular stiffness of the spline coupling was proposed.Then the experimental vibration data of radial driving shaft for rubbing malfunction was analyzed, and the improved design of radial driving shaft structure was carried out. The testing results showed that the operation condition of the improved radial driving shaft was stable and sound. Finally, simple feature for rubbing malfunction of radial driving shaft was mastered, and the rotor dynamic design technology of radial driving shaft was improved.
The rotor dynamic characteristics of radial driving shaft were studied, the supporting stiffness of the spline coupling at both ends of radial driving shaft were analyzed in detail. On this basis, a rotor dynamic design method considering lateral stiffness and angular stiffness of the spline coupling was proposed.Then the experimental vibration data of radial driving shaft for rubbing malfunction was analyzed, and the improved design of radial driving shaft structure was carried out. The testing results showed that the operation condition of the improved radial driving shaft was stable and sound. Finally, simple feature for rubbing malfunction of radial driving shaft was mastered, and the rotor dynamic design technology of radial driving shaft was improved.
引文
[1]李勇,冯国全,蔚夺魁.某型燃气轮机中央传动杆磨损故障分析[J].航空发动机,2008,34(1):3-6.
[2]郭梅,陈聪慧,战鹏,等.航空发动机中央传动杆磨损故障分析与研究[J].燃气涡轮试验与研究,2013,26(2):54-58.
[3]杜佳佳,梁作斌,藏戈.支承对航空发动机中央传动杆动态特性的影响[J].哈尔滨工业大学学报,2017,49(1):139-143.
[4]AL-Hussain K M,Redmond I.Dynamic response of two rotors connected by rigid mechanical coupling with parallel misalignment[J].Journal of Sound and Vibration,2002,249(3):483-498.
[5]《航空发动机设计手册》总编委会.航空发动机设计手册:第19册--转子动力学及整机振动[K].北京:航空工业出版社,2000.
[6]《航空发动机设计手册》总编委会.航空发动机设计手册:第12册--传动及润滑系统[K].北京:航空工业出版社,2002.
[7]陈光.航空发动机结构设计分析[M].北京:北京航空航天大学出版社,2006.
[2]郭梅,陈聪慧,战鹏,等.航空发动机中央传动杆磨损故障分析与研究[J].燃气涡轮试验与研究,2013,26(2):54-58.
[3]杜佳佳,梁作斌,藏戈.支承对航空发动机中央传动杆动态特性的影响[J].哈尔滨工业大学学报,2017,49(1):139-143.
[4]AL-Hussain K M,Redmond I.Dynamic response of two rotors connected by rigid mechanical coupling with parallel misalignment[J].Journal of Sound and Vibration,2002,249(3):483-498.
[5]《航空发动机设计手册》总编委会.航空发动机设计手册:第19册--转子动力学及整机振动[K].北京:航空工业出版社,2000.
[6]《航空发动机设计手册》总编委会.航空发动机设计手册:第12册--传动及润滑系统[K].北京:航空工业出版社,2002.
[7]陈光.航空发动机结构设计分析[M].北京:北京航空航天大学出版社,2006.