1. Properties of systems with one degree of freedom (ddl)
The basic concepts of dynamic systems can be illustrated using the simple case of a viscous-damped mass-spring system. A conservative system is defined as an undamped system, and a dissipative system as one with damping.
Consider the one-ddl system defined in figure 1 .
Assuming that damping results in a force proportional to velocity, we obtain the differential equation of mass motion :
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Properties of systems with one degree of freedom (ddl)
Systems with N degrees of freedom
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