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Article | REF: BM4175 V1

Alternating vibrations and stresses in turbomachinery

Authors: Martial NAUDIN, Jean-Marc PUGNET

Publication date: July 10, 1999

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1. Damped vibration system

The determination of dynamic stresses uses the results of the study of a simple (one degree-of-freedom), damped vibratory system subjected to forced excitation.

1.1 Free motion study

Applying the fundamental equation of dynamics to the vibratory system shown in figure 1 gives :

m  d2x d t2  +b dx d t  +kx=0

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