Research on Similarity Scaling of Structure for Compressor Disc


Article Preview

To study the similarity scaling of structure for compressor disc, based on the basic rules of similarity scaling, physical speed of five linear scale factors (LSF) is determined, and the ratio of between centrifugal force and LSF is established, then the centrifugal force of single rotor blade and single rim flange with different LSF is obtained. Using the method of finite element numerical simulation, strength of four assessment projects including circumferential stress of disc heart, circumferential stress of cylindrical surface, radial stress of cylindrical surface and circumferential stress of meridian plane is analyzed. The results show that the maximum relative error among four assessment projects is only 2.60%, and stress level of disc corresponding to the different LSF is very close to each other. Then a conclusion can be got that the stress level of disc is little difference with itself geometry size, and the structure of disc can be designed pro rata scaling.



Advanced Materials Research (Volumes 591-593)

Edited by:

Liangchi Zhang, Chunliang Zhang, Jeng-Haur Horng and Zichen Chen




D. K. Tian and X. Y. Liu, "Research on Similarity Scaling of Structure for Compressor Disc", Advanced Materials Research, Vols. 591-593, pp. 144-147, 2012

Online since:

November 2012




[1] H. F. Jiang: Economic Research of the Aviation Industry. Vol. 1 (2007), pp.4-8(In Chinese).

[2] S. J. Tang, W. J. Tong and X. H. Zhong: Aeroengine. Vol. 33 (2007), pp.41-44(In Chinese).

[3] W. L. Lu: Strength Calculation of Aircraft Engine (Nanjing University of Aeronautics and Astronautics Press, China 2009, pp.15-50). (In Chinese).

[4] Editorial Board of Aircraft Engine Design Data Manual for Materials,: Aircraft Engine Design Data Manual for Materials (Aviation Industry Press, China 2008). (In Chinese).

[5] G. L. Hu and J. W. Ren: The Introduction and Improvement of Finite Element Analysis (ANSYS11. 0) (National Defense Industry Press, China 2009). (In Chinese).