The Validation Method of the Rotor Dynamic Model Based on the Rotor Balance
-
摘要: 基于大涵道比涡扇发动机风扇转子易于进行现场动平衡的特点,以带弹性支承的单盘对称转子为模型,根据动平衡的影响系数和转子的振动响应之间的关系,提出了利用影响系数和传递函数对转子动力学模型和模型参数(自振频率、等效刚度和弹支刚度)进行验证和估算的方法.并通过实验验证,验证了上述方法的可行性和正确性.Abstract: Based on the feature,it is easy to carry out rotor balance in situ of fan rotor for high bypass ratio turbofan engine,using the model of the symmetric rotor with a single disc and elastic support,and according to the relationship between the influencing coefficients of the rotor balance and the vibration response of the rotor,two methods in which influencing coefficients and transfer functions are used to validate the rotor dynamic model and estimate the model parameters(the natural vibration frequency,the equivalent stiffness and the elastic support stiffness) are presented. The methods are validated by experiments and the results show the feasibility and correctness of the above methods.
-
Key words:
- influencing coefficients /
- model parameters /
- rotor balance /
- rotor dynamic model /
- transfer functions
-
[1] 王四季,廖明夫,杨伸记主动式弹支干摩擦阻尼器控 制转子振动的实验研究[J]航空动力学报,2007,22 (11):1893-1897 Wang S J,Liao M F,Yang S J.Experimental investigation on rotor vibration control by elastic: support/ dry frictaion damper[J]Journal of Aerospace Power, 2007,22(11):1893-1897(in Chinese) [2] 王四季,廖明夫转子现场动平衡技术研究[J]机械科 学与技术,2005,24(12);1510-1514 Wang S J,Liao M F.Study of techniques for rotor balance in situ[J].Mechanical Seience and Technology, 2005,24(12):1510-1514(in Chinese) [3] 范天宇,廖明夫,王俨2[[弹性支撑干摩擦阻尼器减振试 验研究[J]机械科学与技术,2005,24(9):1062-1065 Fan T Y,Liao M F,Wang Y K.Experimental investigation of the dry frictaion damper with elastic support [J]Mechanical Seience and Technology,2005, 24(9:1062-1065(in Chinese) [4] 吴元东,漆文凯某发动机模拟机匣的模态分析与模型 验证[J]机械科学与技术,2010,29(11);1487-1492 WuYD,Qi W K.Modal analysis and model verification of an aeroengine casing[J]Mechanical Science and Technology,2010,29 (11):1487-1492(in Chinese) [5] Liu Z C,Liao M F.State judgment based on dynamic stiffness for aero-engine[C]//ISJPPE 2012 Proceedings of 4th International Symposium on Jet Propulsion and Power Engineering,Xi'an:Northwestern Polytechnical University Press,2012;502-505 [6] 晏砺堂航空燃气轮机振动和减振[M]北京:国防工 业出版社,1991 Yan L T.Aviation gas turbine vibration and damping[M Beijing ; National Delence Industry Press,1991(in Chinese) [7] 吕文林航空发动机强度计算[M]北京:国防工业出 版社,1988.Lv W L.Aero engine strength calculation[M]Beijing ; National Delence Industry Press,1988(in Chinese) -
点击查看大图
计量
- 文章访问数: 204
- HTML全文浏览量: 37
- PDF下载量: 5
- 被引次数: 0
下载:
