Study on the Nonlinear Vibration of Complex Rotor System under the Effect of Temperature Fields

Abstract:

In this paper, the flow and heat model of high pressure rotor (HPR) has been established in condition of nature convection at different parking times. The flow and temperature fields of the HPR were studied by using CFD. Moreover, the continuous finite element model with multiple nodes of the rotor system was established considering the asymmetric temperature effect. Comparison of different models between ignoring and considering temperature fields was employed in detail. The calculated results show that the vibration amplitudes are increased and the orbits become disordered when the parking temperature field is considered for the HPR. In the frequency spectrum, there are abundant frequent components caused by temperature and rubbing force and the vibration characteristics considering temperature effect are more complicated than ignoring it for the HPR.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 1471-1474
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.1471
• Online since: February 2012
• Authors: Ju Wei Zhang, Chun Yi Sun, Xiang Zhe Zhu
• Keywords: Complex Rotor System, Finite Element Method (FEM), Nonlinear Vibration, Temperature Field

References

[1] Xiaoyao Shen, Jiuhong Jia and Mei Zhao. Archive of Applied Mechanics, Vol. 77 (2007), p.883.

[2] Wan Cai, Jian Chang and Chen Chao Kuang. Int. J. of Mechanical Sciences, Vol.50 (2008), p.1090.

[3] A.S. Lee, B. O. Kim, Y.C. Kim. J. of Sound and Vibration, Vol.297 (2006), p.595.

[4] N. Bachschmid, P. Pennacchi，A. Vania. Journal of Sound and Vibration, Vol. 299(2007), p.683.

[5] X. Z. Zhu, Y. D. He, L. Chen and H. Q. Yuan. Advanced Science Letters, Vol. 5(2012), in press.