The Energy Mobility

Prediction of transmission loss of double panels with a patch-mobility method

“…The mobility technique introduced in Refs. 26 and 27 is now widely used in structural coupling, [28][29][30] and an extension to energy mobility was presented by Orefice et al 31 The mobility approach for vibroa-coustic problems used here appears as an integral equation discretized by collocation leading to patch mobilities. This method was used previously by Ouisse et al 32 for coupling acoustic subdomains.…”

Energy-density field approach for low- and medium-frequency vibroacoustic analysis of complex structures using a statistical computational model

“…However, the mobilities used in these works are not the same as those used in the present work. For example reference [16] uses what is called the energy mobility. Moreover, those methods use either frequency or spatial averaging.…”

Structural partitioning of complex structures in the medium-frequency range. An application to an automotive vehicle

“…It should be noted that the vibroacoustic analyses of automotive vehicles in the high-frequency band are of a great importance for automotive engineering and can generally be treated by using statistical energy analysis (SEA) [5] and [6], its extension and the diffuse field methods for which numerous papers have been published in the last decade (see for instance [7] for uncertainty modelling in SEA; [8], [9] and [10] for the extension of SEA model to subsystems with non-uniform modal energy distribution, for SEA substructuring using cluster analysis and for SEA subcomponent modelling of input parameters; [11], [12] and [13] for hybrid methods for the vibration analysis of complex vibroacoustic systems; [14], [15]) and [16] for diffuse field methods, energy transfer in builtup structures, vibrational energy variance in a random subsystem and hybrid local energy formulation; [17] for the ensemble statistics of the band-avaraged energy of random system; [18] and [19] for the response variance prediction in SEA of built up systems; [20] for the introduction of the energy mobility). These methods generally use a frequency or a space averaging and are efficient only in the high frequency range for which the modal density is high enough.…”