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http://dx.doi.org/10.5293/kfma.2014.17.4.070

Dynamic Response Analysis of a Heavy Duty Gas Turbine-Generator with Rigid Coupling Offset  

Ha, Jin Woong (Doosan Heavy Industries and Construction Co., LTD.)
Jung, Dae Seok (Doosan Heavy Industries and Construction Co., LTD.)
Publication Information
The KSFM Journal of Fluid Machinery / v.17, no.4, 2014 , pp. 70-75 More about this Journal
Abstract
In this paper a analysis method is presented to obtain the steady state dynamic response from the finite element based equations of a rotor-bearing system with initial deflection. The method has been applied to analyze the dynamic response of the two-shaft rotor-bearing system with rigid coupling offset in a heavy duty gas turbine-generator. Bumps in the dynamic response of each rotor system have been observed at each critical speed due to the effect of initial deflection for rigid coupling offset. And, the dynamic responses have been shown to reduce for operating condition changes from cold to hot.
Keywords
Dynamic Response Analysis; Rigid Coupling Offset; Initial Deflection; Critical Speed; Gas Turbine-Generator;
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1 Nicholas, J. C., Gunter, E. J., and Allaire, P. E., 1976, "Effect of Residual Shaft Bow on Unbalance Response and Balancing of a Single Mass Flexible Rotor, Part 1: Unbalance Response," Journal of Engineering for Power, Trans. ASME, Vol. 98, No. 2, pp. 171-181.
2 Nicholas, J. C., Gunter, E. J., and Allaire, P. E., 1976, "Effect of Residual Shaft Bow on Unbalance Response and Balancing of a Single Mass Flexible Rotor, Part 2: Balancing," Journal of Engineering for Power, Trans. ASME, Vol. 98, No. 2, pp. 182-187.
3 Kim, Y. C., Kim, B. K., and Kim, B. O., 1998, "A Study on the Dynamic Characteristics of a Shaft with Initial Deflection," Transactions of Korean Society of Automotive Engineers, Vol. 6, No. 6, pp. 80-87.
4 Nelson, H. D., 2002, "Steady Synchronous Response and Balancing of Rotor Systems with Residual Shaft Bow," International Journal of Rotating Machinery, Vol. 8, No. 6, pp. 431-438.   DOI
5 Lalanne, M., Ferraris, G., 1998, Rotordynamics Prediction in Engineering, John Wiley.
6 Ha, J. W. and Lee, A. S., 2012, "Rotordynamic Design Sensitivity Analysis of a Heavy Duty Gas Turbine-Generator," Proceedings of 2012 Annual Meeting of Korean Fluid Machinery Association, KFMA_2012_OP07074.