Abstract: An acoustic characteristics optimization model analysis apparatus includes a finite element model generation unit; a boundary element model generation unit; an acoustic transfer function calculation unit; a nodal point association unit; and a sound pressure calculation unit that incorporates the plurality of nodal points of the finite element model correlated with the plurality of nodal points of the boundary element model by the nodal point association unit into the acoustic transfer function calculated by the acoustic transfer function calculation unit to calculate a sound pressure transmitted from the finite element model to the predetermined position.

Abstract: An optimization model analysis apparatus configured with a finite element model generation unit that generates on the basis of a structural configuration of a design model having a 3D shape a finite element model for analyzing acoustic characteristics of the design by a finite element method. The apparatus is configured with a shell model generation unit that generates a model by dividing a surface of the finite element model into a plurality of plate elements having a polygonal shape; an optimization model generation unit that superimposes the shell model on the surface of the finite element model to generate an optimization model; and an optimization model modification unit that displaces nodal points which serve as vertexes of the plate elements in a direction intersecting a plane of the plate elements by displacing at least one of the nodal points in a direction of reducing a thickness of the optimization model.

Abstract: An acoustic characteristics optimization model analysis apparatus includes a finite element model generation unit; a boundary element model generation unit; an acoustic transfer function calculation unit; a nodal point association unit; and a sound pressure calculation unit that incorporates the plurality of nodal points of the finite element model correlated with the plurality of nodal points of the boundary element model by the nodal point association unit into the acoustic transfer function calculated by the acoustic transfer function calculation unit to calculate a sound pressure transmitted from the finite element model to the predetermined position.