Vibration reliability sensitivity design on compressor rotor system

被引：0

作者：

Zhu, Lisha ^{[1
]}

Zhang, Yimin ^{[1
]}

Du, Zunling ^{[2
]}

机构：

[1] School of Mechanical Engineering & Automation, Northeastern University, Shenyang

[2] China Czech Vertical Machining Center, Shenyang Machine Tool Co. Ltd., Shenyang

来源：

Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2015年 / 35卷 / 05期

关键词：

Isolative interval; Reliability; Rotor system; Sensitivity; Vibration;

D O I：

10.16450/j.cnki.issn.1004-6801.2015.05.019

中图分类号：

学科分类号：

摘要：

The relationship between reliability and original random variables is discussed for the design of the reliability sensitivity of a complex compressor rotor system. First, by introducing the basic concepts of isolative intervals and amplification factors, the actual and permitted isolative intervals can be calculated by the dynamic response of the rotor system. Then, the vibration reliability model for the compressor system is established according to the rule that permitted isolative intervals cannot exceed the actual ones. Second, the strong non-linear relationship between the reliability of a complex structural model and original random parameters is obtained by an artificial neural network instead of the finite element (FE) model. Finally, a geared rotor system is taken as an example. The reliability at a dangerous position is calculated based on the reliability design theory, and the reliability sensitivity of the mean value and variance of parameters are also obtained. The results show that the system's reliability is mainly affected by the working, manufacturing, installation and meshing parameters. In practical designs, the working parameters are dominant, followed by the manufacturing, installation and meshing parameters. ©, 2015, Nanjing University of Aeronautics an Astronautics. All right reserved.

引用

页码：921 / 926

页数：5

共 11 条

[1]

Wang Z., Wu J., Wen B., Research on pedestal looseness and rub-impact faults of rotor system with slowly varying mass, Journal of Vibration Engineering, 18, 2, pp. 167-171, (2005)

[2]

Chen G., Li X., Study on imbalance-misalignment-rubbing coupling faults in aero-engine vibration, Journal of Aerospace Power, 24, 10, pp. 2277-2284, (2009)

[3]

Li M., Nonlinear dynamics characteristics of rotor system with angular misalignment, Journal of Vibration, Measurement & Diagnosis, 31, 5, (2011)

[4]

Wang K.S., Chen C.S., Huang J.J., Dynamic reliability behavior for sliding wear of carburized steel, Reliability Engineering & System Safety, 58, 1, pp. 31-41, (1997)

[5]

Jing J.-P., Meng G., Sun Y., Et al., Study on the fatigue damage of a rotor under oil-whip by continuum damage mechanics, Chinese Journal of Mechanical Engineering, 40, 6, pp. 5-9, (2004)

[6]

Sorensen J.D., Toft H.S., Probabilistic design of wind turbines, Energies, 3, 2, pp. 241-257, (2010)

[7]

Zhang Y., Su C., Wen B., Natural frequency reliability analysis of rotor system, Journal of Vibration Engineering, 22, 2, pp. 218-220, (2009)

[8]

Xu J., Zhou K., Chen J., Reliability Study of steam turbine rotor based probability fracture mechanics, Turbine Technology, 48, 5, (2006)

[9]

Cheng J., Cai C.S., Xiao R., Application of artificial neural networks to the response prediction of geometrically nonlinear truss structures, Structural Engineering and Mechanics, 26, 3, pp. 251-262, (2007)

[10]

Fan H., Liang R., Reliability-based design of axially loaded drilled shafts using Monte Carlo method, International Journal for Numerical and Analytical Methods in Geomechanics, 37, 14, pp. 2223-2238, (2013)

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