Abstract
An experimental facility for testing full-scale bladed disks in vacuum conditions and under centrifugal load is described in this paper. The special feature of the PHARE#1 test rig is its multichannel excitation system which allows to excite woven composite fan blades with any spatial and phase distribution as well as synchronous or non-synchronous vibration forcing with respect to rotation speed. The configuration of the excitation system allows each blade to be excited independently and therefore nodal diameter excitations can be performed with traveling (forward, backward or mixed) or standing waves. First rotations of the PHARE#1 test rig produced results at different rotation speeds, for several modes, nodal diameters and excitation levels. Typical results analysis and findings are presented in this paper.
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Acknowledgments
The PHARE#1 test-rig was set up as part of the French Future Investment Program (10-EQPX-0043) and implemented by the French National Research Agency (ANR).
The authors are also grateful to Safran Aircraft Engines for providing the financial support allowing to carry out this study and for their assistance during the project.
The authors would like to extend special thanks to Sandra Dubois, Cécile Esteves, Marie-Océane Parent, Xavier Leblanc, Stéphane Lemahieu and Alain Dravet for their contribution to the PHARE#1 project.
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Mabilia, A., Gibert, C., Thouverez, F., De Jaeghere, E., Sanchez, L., Giovannoni, L. (2019). Modal Testing of a Full-Scale Rotating Woven Composite Fan Using Piezoelectric Excitation. In: Cavalca, K., Weber, H. (eds) Proceedings of the 10th International Conference on Rotor Dynamics – IFToMM . IFToMM 2018. Mechanisms and Machine Science, vol 62. Springer, Cham. https://doi.org/10.1007/978-3-319-99270-9_21
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DOI: https://doi.org/10.1007/978-3-319-99270-9_21
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