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overview seam software SEAM acoustic and vibration prediction software

Cambridge Collaborative's SEAM software provides a method of analysis that is particularly well-suited for studying the dynamic response of complex structures at mid and high frequencies. SEAM is used to predict interior noise and vibration in automobiles, aircraft, and construction equipment cabs as well as the radiated noise from ships and the vibroacoustic environments for spacecraft. Other applications include machinery noise, industrial noise, and building acoustics.

SEAM includes a complete implementation of statistical energy analysis (SEA). The complex dynamic system being analyzed is divided into a set of substructures and acoustic elements. The modes of each substructure and acoustic element are grouped into SEA subsystems. The flow of energy between the different subsystems is proportional to the modal energies of the subsystems and the coupling factors. The SEAM program calculates all required coupling factors and performs a power balance for each subsystem. The resulting equations are solved for the modal energy and response of each subsystem.

The SEAM software was developed in 1980 to study structure-borne noise in submarines, and was made commercially available in 1983. Since that time SEAM has become an accepted analysis procedure by automobile manufacturers and suppliers, major shipyards, Navy research establishments, and aerospace companies. Cambridge Collaborative continues to advance the state of the art in statistical energy analysis (SEA) through software development and research.