Topological Design for Minimum Sound Emission from Structures under Forced Vibration
This paper is devoted to topology optimization problems formulated with the design objective of minimizing the sound power radiated from the structural surface(s) into a surrounding acoustic medium. Bi-material elastic continuum structures without material damping are considered. The structural vibrations are excited by time-harmonic external mechanical loading with prescribed excitation frequency, amplitude, and spatial distribution. Several numerical results are presented and discussed for bi-material plate-like structures with different sets of boundary and loading conditions.
KeywordsOptimum Topology Excitation Frequency Forced Vibration Dynamic Compliance Sound Power
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