Correction on Parameters in Torsion Vibration Model for Turbine-Generator Shafts


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The accuracy of parameters in model has important influence on torsion vibration analysis of turbo-generator shafts. In this paper, a method for torsion vibration response calculation based on multistage lumped mass model is introduced. A method for identification and correction on stiffness and damping in torsion vibration monitoring is put forward. Pre-revision on shaft stiffness is realized through analytic calculation of the temperature distribution of turbine-generator shafts. The difference of natural frequencies and response of torsion vibration of shafts are calculated and analyzed after parameter correction, which offers the reference for studying torsion vibration fatigue of shafts.



Key Engineering Materials (Volumes 353-358)

Edited by:

Yu Zhou, Shan-Tung Tu and Xishan Xie




Y. J. Gu et al., "Correction on Parameters in Torsion Vibration Model for Turbine-Generator Shafts ", Key Engineering Materials, Vols. 353-358, pp. 2505-2508, 2007

Online since:

September 2007




[1] Bao Wen, Wang Xitian, Yu Daren and Yang Kun: Turbine Technology Vol. 40 (1998), p.193.

[2] IEEE Working Group on the Effect of Switching on Turbine-Generators: IEEE Trans. on PAS Vol. 101 (1982), p.3151.

[3] Yan Shuiping and Huang Shuhong: Proceeding of the CSSE Vol. 20 (2000), p.10.

[4] Sihler C: Power Electronics Specialists Conference Vol. 2 (2004), p.1424.

[5] Yang Baokui and Chen Heng: Journal of Southeastern Vol. 22 (1992), p.44.

[6] D G Ramey and J A Demcko: IEEE Trans. on PAS Vol. 99 (1980), p. (1900).

[7] Yang Kun, in: Study on the Torsional Vibration and Thermal Transients of Large Steam Turbine-Generator Shafts During Fast Tubine Valving, editted by North China Electric Power University, Beijing (1992).