A NEW STOCHASTIC-ANALYSIS FOR MULTIPLE SUPPORTED MDOF SECONDARY SYSTEM .2. TUNING AND SPATIAL COUPLING EFFECTS

A new stochastic analysis is developed to estimate the response of mul tiply-supported multi-degree-of-freedom (MDOF) secondary systems to dy namic loading. The preceding paper illustrates how the effect of the d ynamic interaction between the secondary and primary systems is includ ed in the proposed stochastic analysis. The effects of both tuning and spatial coupling are covered in this paper. First, the terms associat ed with the cross correlations are defined. Then, a section is assigne d to demonstrate how the tuning character can be accounted for. Subseq uently, numerical examples are provided in order to demonstrate the si gnificance of both effects of tuning and spatial coupling in the stoch astic analysis of secondary systems.