For structural dynamic simulation, several domains can be chosen depending on the component at hand, the targeted analysis, the availability of computational or experimental resources and perhaps personal preference. The following figure shows a schematic overview of five domains that are commonly encountered in structural dynamic simulation, namely the physical, modal, frequency, time and state-space domain. Some typical (but not all) conversions between the domains are indicated by arrows. Although this overview might be incomplete, these five domains are all well suited to simulate multiple input / multiple output behavior, which qualifies them for use in dynamic substructuring applications.
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