Systems with N degrees of freedom
Experimental modal analysis
Archive REF: R6180 V1
Systems with N degrees of freedom
Experimental modal analysis

Author : Jean PIRANDA

Publication date: December 10, 2001 | Lire en français

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2. Systems with N degrees of freedom

The behavior of self-joining, conservative mechanical structures can be represented by the following matrix equation:

My··(t)+Ky(t)=f(t)( 2 )

M represents the mass matrix, real, symmetrical, positive definite*, K the stiffness matrix, real, symmetrical, non-negative definite**. Both matrices are of dimension (N,N).

f (t) represents the vector of exciting forces. In the harmonic...

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