Abstract
The design of lighter and highly loaded aircraft turbo engines is driven by the need of improving their efficiency for a sustainable air propulsion. In this context, forced and self-excited vibrations in bladed disks must be mitigated to avoid HCF damage that jeopardizes the structural integrity of the whole engine. Current vibration prediction methods are not fully reliable due to complexities of the bladed disks design and nature of excitations. To improve the reliability of such methods, it is necessary to (i) investigate key problems like mistuning and nonlinear friction damping and (ii) validate design methodologies. In this chapter, the results of a test campaign to study the effect of mistuning and of underplatform dampers are presented and discussed. The data collected have been used to validate an in-house numerical code. The code exploits an efficient reduction method for large finite-element models of mistuned bladed disks.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Pinto, V., Battiato, G., Firrone, C. M.: A reduction technique for the calculation of the forced response of bladed disks in the presence of contact mistuning at blade root joints. J. Eng. Gas Turbines Power 145(2), 021013 (2023). https://doi.org/10.1115/1.4055722
Sanliturk, K.Y., Ewins, D.J.: Modelling two-dimensional friction contact and its application using harmonic balance method. J. Sound Vib. 193(2), 511–523 (1996). https://doi.org/10.1006/jsvi.1996.0299
Corral, R., Khemiri, O., Martel, C.: Design of mistuning patterns to control the vibration amplitude of unstable rotor blades. Aerosp. Sci. Technol. 80, 20–28 (2018). https://doi.org/10.1016/j.ast.2018.06.034
Castanier, M.P., Pierre, C.: Using intentional mistuning in the design of turbomachinery rotors. AIAA J. 40(10), 2077–2086 (2002). https://doi.org/10.2514/2.1542
Craig Jr, R.R., Bampton, M.C.: Coupling of substructures for dynamic analyses. AIAA J. 6(7), 1313–1319 (1968)
Cameron, T.M., Griffin, J.H.: An alternating frequency/time domain method for calculating the steady-state response of nonlinear dynamic systems. J. Appl. Mech. 56(1), 149–154 (1989). https://doi.org/10.1115/1.3176036
Yang, B.D., Chu, M.L., Menq, C.H.: Stick-slip-separation analysis and non-linear stiffness and damping characterization of friction contacts having variable normal load. J. Sound Vib. 210(4), 461–481 (1998). https://doi.org/10.1006/jsvi.1997.1305
Acknowledgements
This study has been conducted within the ARIAS (“Advanced Research Into Aeromechanical Solutions”) European project, funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 769346.
The authors wish to thank GE Avio s.r.l. for its support and permission to publish this chapter.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Battiato, G., Firrone, C.M., Pinto, V., D’Ettole, A.G. (2024). An Extensive Test Campaign of a Turbine Bladed Disk in the Presence of Mistuning and Underplatform Dampers, and Numerical Validation. In: Lacarbonara, W. (eds) Advances in Nonlinear Dynamics, Volume I. ICNDA 2023. NODYCON Conference Proceedings Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50631-4_31
Download citation
DOI: https://doi.org/10.1007/978-3-031-50631-4_31
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-50630-7
Online ISBN: 978-3-031-50631-4
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)