TOPOLOGY OPTIMIZATION METHOD AND DEVICE FOR ABSORPTIVE COMPLEX STRUCTURE DESIGN OF NOISE BARRIER

摘要

Topology Optimization for the noise barrier composite sound absorbing structure designed according to an embodiment of the present invention method includes calculating the properties of the porous sound-absorbing material by using the Delany-bazley empirical formula; In order to apply the material properties of the porous sound-absorbing material to the sound analysis, the method comprising: changing the physical properties of the porous sound-absorbing material to the material properties used in the Finite Element Analysis: The porous sound-absorbing material by using the physical properties changed to be used in the Finite Element Analysis performing a finite element analysis of the acoustic noise barrier is to be applied; And it is based on a finite element analysis of the acoustic noise barrier comprising the step of designing the layout structure of the body and the porous sound-absorbing material is applied to the acoustic insulating wall. ;