In this study, the example building is modeled as a 3-D frame, and its responses are evaluated using coupled multi-mode analysis.
Significant coupling among modes was also observed in the buffeting analysis, and the multi-mode analysis predicted the measurements better than an equivalent single-mode analysis method.
A multi-mode analysis of a beam-like structure undergoing transverse vibration and subjected to a displacement-dependent force is conducted.
The analytical method used here was a multi-mode analysis in the frequency domain in which mode responses obtained by a spectral analysis were summed including consideration of full aeroelastic and aerodynamic coupling among modes.
Since multi-mode behaviors have been reported with increased center-span length of bridges, considering the coupling effect among modes is necessary; and therefore, wind-tunnel testing with an aeroelastic full-model or a multi-mode analysis method is desirable.
The multi-span BHA model enables more accurate natural frequency prediction and multi-mode contact analysis of the drillstring and wellbore.
Comparison showed that there was good agreement between the multi-mode flutter analysis and the measurement, and that there was indeed a significant coupling among modes.
This ROM approach is highly suitable for the parametric, mistuning, and multi-mode coupling analysis at the early stage of turbomachinery blade design.
A multi-mode theoretical analysis, of the scattering of a reverberant sound field in a cavity by an array of resonators, is described; the sound field is driven by an arbitrary distribution of sources.
A combustion mode analysis based on key radical species illustrates the multi-stage and multi-mode nature of the ignition process and highlights the substantial modelling challenge presented by diesel combustion.
Based on multi-threaded technology in.NET, subspace iteration method is paralleled to speed up the mode analysis.
