Research Article

Efficient Midfrequency Analysis of Built-Up Structure Systems with Interval Parameters

Table 2

The relative errors of the bounds of the plate energy and the autospectrum of the mass displacements for different uncertainty levels ( Hz).

 Uncertainty level Lower boundsUpper bounds
 MCSSIPFEM/SEARelative errors (%)MCSSIPFEM/SEARelative errors (%)

(J)

(m2)