Vibration analysis of blade-disc coupled structure of compressor

Abstract

While a 3D assembly model of blade-disc structure was established, a finite element model for calculating the vibration characteristics during blade-disc coupling was built by taking into consideration the coupling action of contact stress between the blade and the disc. The vibration characteristics of the blade-disc coupling structure was calculated and analyzed using cycle analysis method with the aid of ANSYS software. The modeling experiment shows that this method is feasible for analyzing the rabbet assembly structure.

References

1. Zhou Chuanyue, Zou Jingxiang, Wen Xueyou, et al.. Calculation of the blade-disc coupled vibrationcharacteristics of a gas turbine. ActaAeronautica Et Astronautica Sinica, 2000, 21(6): 545–547 (in Chinese)
2. Zhao Meng, Zhang Yidu, Ma Liangwen, et al.. Research on modal analysis of assembly structuresbased on MSC/Nastran. Journal of Vibrationand Shock, 2005, 24(1): 28–30 (in Chinese)
3. Thomas D L . Dynamics of rotationally periodic structures. International Journal of Numerical Methods in Engineering, 1979, 14(1): 81–102. doi:10.1002/nme.1620140107
4. Zhang Jin, Chen Xiangjun, Wang Wenliang . Cyclo-symmetric modal synthesis of rotating bladed discsystem. Acta Mechanical Solid Sinica, 1992, 13(3): 225–234 (in Chinese)