Numerical Study for Structural Design of Composite Rotor with Crack Initiation
Authors: A. Chellil, A. Nour, S. Lecheb, H. Mechakra, A. Bouderba, H. Kebir
Abstract:
In this paper, a coupled damage effect in the instability of a composite rotor is presented, under dynamic loading response in the harmonic analysis condition. The analysis of the stress which operates the rotor is done. Calculations of different energies and the virtual work of the aerodynamic loads from the rotor blade are developed. The use of the composite material for the rotor offers a good stability. Numerical calculations on the model developed prove that the damage effect has a negative effect on the stability of the rotor. The study of the composite rotor in transient system allowed determining the vibratory responses due to various excitations.
Keywords: Rotor, composite, damage, finite element, numerical.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1337719
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[1] M. Imregun and D. J. Ewins. Complex modes - Origins and limits. In Proceedings of the 13th IMAC, 1995.
[2] T. Gmür. Dynamique des structures. Presses polytechniques et universitaires ro-mandes, 1997.
[3] M. Lalanne and G. Ferraris. Rotor dynamics prediction in engineering. John Wiley & Sons, 1990.
[4] W. J. Chen. Energy analysis to the design or rotor-bearing systems. Journal of Engineering for Gas Turbines and Power, 119:411-417, Avril 1997.
[5] J. N. Sundermeyer and R. L. Weaver. On crack identification and characterization in a beam by nonlinear vibration analysis. J. Sound vibration, 183 :857–871, 1995.
[6] J. B. Hamidi, L.and Piaud, Mansour W. M., and M. Massoud. Modal parameters for cracked rotors : models comparaison, J. Sound and Vibration, 175(2) :265–278, 1994.
[7] P. F. Rizos, N. Aspragathos, and A. D. Dimarogonas. Identification of crack location and magnitude in a cantilever beam from the vibration modes. J. Sound and Vibration, 138(3) :381–388, 1990.
[8] J. Wauer. Modelling and formulation of equations of motion for cracked rotating shafts. Int. J. Solids Structures, 26(9) :901–914, 1990.