A computational design tool was developed to perform a constrained optimization of the acoustic environment within a vibrating cylinder, incorporating finite element and boundary element methods. The tool comprises a UNIX shell script that coordinates an iterative design optimization process integrating a number of programs, the Key components of which are MSC/NASTRAN for structural analyses, COMET/Acoustics for acoustic analyses, And CONMIN for nonlinear optimization. In addition to the structure and implementation of the tool, this paper Present the results of a number of trials of the tool applied to stiffened and unstiffened cylinders, considering Different formulations of the objective function to e optimized, and for a constant frequency exterior monopole Excitation.
展开▼