Abstract
The development of blisk structure has made the low cycle fatigue (LCF) life test more expensive for the critical components. This paper aims at design several simulating specimen to simulate the working condition and stress distribution of a high-loaded fan blisk. The finite element analysis was performed to confirm the constraining locations of the fan blisk. Afterwards, the LCF life of the blisk was calculated according to Mason-coffin equation and the total damage methods with the predicted maximum allowable LCF life reaching 158352 cycles. Meanwhile, the crack propagation simulation was carried out to figure out the propagation cycle life of the critical locations. The predicted cycle life of the fan blisk is about 4276 and 3991 cycles using the semi-elliptical crack and the 1/4 surface corner cracks. Then, by optimizing the three critical parameters with regard to the stress gradient of the specimen, the optimum simulating specimen were confirmed and tested in the thermo-mechanical fatigue test rig. Results comparisons show that the LCF life of the designed simulating specimen is approximate 153339 cycles, which is content with the calculation. The simulating specimen approach proves to be a reliable and accurate way to validate the cycle life of the engine critical components.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Liu, C.L.: Reliability analysis for an aero-engine turbine disk under low cycle fatigue condition. Acta Metallyrgica Sinica 17(4), 514–520 (2009)
Gan, L.P., Huang, G.Z., Zhu, S.P., et al.: Fatigue reliability analysis of turbine disk alloy using saddlepoint approximation. Int. J. Turbo Jet-Engines 30(3), 217–229 (2013)
Liu, T.Y., Geng, R., Zhang, J.F.: Design of simulated specimen for low-cycle fatigue of turbine engine disk. J. Aerosp. Power 23(1), 32–39 (2008). (in Chinese)
Zheng, X.M., Sun, Y.T., Yang, X.Y., Xiao, X.H., Liao, X.J.: Design of low cycle fatigue simulating specimen for bolt holes of a turbofan engine high pressure turbine. J. Aerosp. Power 33(10), 2351–2358 (2018). (in Chinese)
Li, D., Wang, Y.R., Liao, L.F., Wang, J.G., Wei, F.F.: Investigation of high and low cycle fatigue experiment for a curved dovetail assembly. Aeroengine 42(3), 61–66 (2016). (in Chinese)
Yang, X.Y., Dong, L.W., Geng, Z.X., Liu, X.L., Zhao, F.X.: Design and experimentation of simulation specimen for aero-engine compressor disk slot used in low cycle fatigue test. Aerosp. Power 23(10), 1829–1834 (2008). (in Chinese)
Zheng, Y., Han, X.Q., Shao, J., Deng, W.J.: Titanium alloy three layers hollow component-like specimen design and high cycle fatigue test. Aeronaut. Manuf. Technol. 16, 52–54 (2017). (in Chinese)
Zhu, Z.Y.: Research on the influence of prestress treatment on the disk fatigue life [dissertation]. Zhejiang University 2020. (in Chinese)
Kuang, C.Y., Liu, Y.F.: Design of simulated specimen for low-cycle fatigue of aircraft engine titanium alloy disk. Equipment Manuf. Technol. 01, 36–40 (2020). (in Chinese)
Wan, J.Y., Zho, B.Z.: Elastic-plastic disk burst criteria establishment and variable thickness disk burst rotational speed prediction. Aeroengine 37(5), 4–7 (2011). (in Chinese)
Wang, J., Zhao, F.T., Sha, Y.D., Gu, S.: Fatigue life research and experimental verification of superalloy thin-walled structures subjected to thermal-acoustic loads. Chin. J. Aeronaut. 33(2), 598–608 (2020)
Tulsidas, D., Shantharaja, M., Bharath, V.G.: Life prediction of a steam turbine blade using low cycle fatigue analysis. Procedia Mater. Sci. 5, 2392–2401 (2014)
Liu, Y.X., Cong, P.H., Wu, Y.W., Li, J.L., Wang, X.P.: Failure analysis and design optimization of shrouded fan blade. Eng. Fail. Anal. 122, 105208 (2021)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Du, Q., Liu, Y., Zhang, J., Guo, Y., Wu, Y. (2022). Design Simulation of the Low Fatigue Life of a Fan Blisk Using the Simulating Specimen Approach. In: Proceedings of the 5th China Aeronautical Science and Technology Conference. Lecture Notes in Electrical Engineering, vol 821. Springer, Singapore. https://doi.org/10.1007/978-981-16-7423-5_53
Download citation
DOI: https://doi.org/10.1007/978-981-16-7423-5_53
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-16-7422-8
Online ISBN: 978-981-16-7423-5
eBook Packages: EngineeringEngineering (R0)