The Vibration Features Analysis of Twin Spool Rotor with Misalignment Fault
-
摘要: 建立了带有中介支承的双转子不对中故障系统动力学模型,利用解析分析、数值分析和实验验证,揭示了双转子系统存在平行、角度不对中故障时,高、低压转子的振动特性.理论分析和实验结果表明,由于高压转子采用中介轴承的支承方式,高、低压转子的振动相互耦合,低压转子的不对中振动特征会传至高压转子,在双转子系统临界转速的1/2处会发生2倍频共振.Abstract: A dynamic model for researching the misalignment fault of a twin spool rotor with inter-shaft bearing is established in this paper. The vibration features of high and low pressure rotors are revealed when the twin spool rotor with misalignment fault by analytical analysis,numerical analysis and experiment. The theory analysis and experiment results show that,because of the inter-shaft bearing,the coupling between the high pressure rotor and low pressure rotor is very strong; when the low pressure rotor is misaligned,the vibration characteristics of low pressure rotor can be transferred to the high pressure rotor and will happen double frequency resonance when the speed is half of the critical speed of the twin spool rotor.
-
Key words:
- damping /
- design of experments /
- experiments
-
[1] 韩捷齿式联接不对中转子的故障物理特性研究[J] 振动工程学报,1996,9(3);297-301 Han J.Study on physical c:haracaeristic、of misalignment fault of rotor connectaed by gear coupling [J].Journal of Vibration Engineering,1996,9(3):297-301(in Chinese) [2] 韩捷齿式联接转子系统的不对中故障机理与识别[J] 振动、测试与诊断,1997,17(2);20-24 Han J.Study and identification on mechanism of misalignment fault of rotor system connectaed by gear coupling[J]Journal of Vibration Measurement& Diagnosis, 1997,17(2);20-24(in Chinese) [3] 韩捷,石来德转子系统齿式联接不对中故障的运动 学机理研究[J]振动工程学报,2004,17(4);416-420 Han J,Shi L D.Study on kinematic mechanism of misalignment fault of rotor system connectaed by gear coupling [J].Journal of Vibration Engineering,2004,17 (4); 416-420(in Chinese) [4] 陈果,李兴阳航空发动机整机振动中的不平衡-不对 中-碰摩藕合故障研究[J]航空动力学报,2009,24 (10);2277-2284 Chen G,Li X Y.Study on imbalance-misalignment and rub-impacta faults of aero-engine body vibration[J] Journal of Aerospace Power,2009,24(10):2277-2284 (in Chinese) [5] 李兴阳,陈果转子-滚动轴承系统不对中-碰摩藕合 故障动力学分析[J]飞机设计,2009,29(3);71-80 Li X Y,Chen G.Kinetic: analysis on misalignment and rub-impacta faults of rotor-bearings system[J]Aircraft Design,2009,29(3):71-80(in Chinese) [6] 赵广,刘占生,叶建槐,等转子-不对中花键联轴器系 统动力学特性研究[J]振动与冲击,2009,28(3)Zhao G,Liu Z S,Ye J K,et al.Study on dynamic characteristic、of rotor system connectaed by misalignment gear coupling [J].Journal of Vibration and Shock,2009, 28 (3)(in Chinese) [7] 廖明夫,刘永泉,王四季,等中介轴承对双转子振动 的影响[J]机械科学与技术,2013,32(5);641-646 Liao M F,Liu Y Q,Wang S J,et al.The inlluence of intermediate bearings on double rotor vibration[J] Mechanical Seience and Technology for Aerospace Engineering,2013,32 (5);641-646(in Chinese) [8] 龙鑫齿式联轴器不对中动力学特性研究[D]哈尔 滨:哈尔滨工业大学,2006 Long X.Study on dynamic: c:haracaeristic、of misalignment fault of gear coupling [D].Harbin:Harbin Institute of Technology,2006(in Chinese) [9] Jin L,Liao M F,Wang S J.A whole transfer matrix method for the〔punter-rotating dual-rotor system [C]// ISJPPE-2012 473-477 [10] Jiang Y F,Liao M F,Wang S J.The design of counter-rotating dual-rotor experimental apparatus[C]// ISJPPE-2012 467-472 [11] 苟文选材料力学[M]北京:科学出版社,2005 Gou W X.Mechanic、of materials[M]Beijing ; Seience Press,2005(in Chinese)
点击查看大图
计量
- 文章访问数: 240
- HTML全文浏览量: 46
- PDF下载量: 7
- 被引次数: 0