NASA Technical Reports Server (NTRS) : Dynamic pdf

NASA Technical Reports Server (NTRS) : Dynamic

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After an analysis of the close connection between the symmetries of a dynamical system and the multiplicity of its vibrational natural frequencies, it is proved by variational arguments that for a system of invariable symmetry the eigenfrequencies associated with the eigenmodes of a given symmetry type do not cross, in general, during the evolution of this system. The theory is implemented by some numerical calculations applied to the analysis of the evolution of the axisymmetric hydroelastic modes of the Ariane launch vehicle during burning of the first stage

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 9/1/1984
• Year: 1984
• Book Topics/Themes: NASA Technical Reports Server (NTRS), ARIANE LAUNCH VEHICLE, COMBUSTION, KINETIC ENERGY, OSCILLATORS, VIBRATION, APPROXIMATION, DISPLACEMENT, FINITE ELEMENT METHOD, HYDROELASTICITY, OPERATORS (MATHEMATICS), SYMMETRY, VIBRATION, Morand, H. J. P

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