Shape optimization of a vehicle hat-shelf Improving acoustic properties for different load cases by Maximizing first eigenfrequency

摘要

This paper present design optimization of the geometry of a vehicle hat-shale. At first two existing finite element discretizations are investigated for two different element types. The structural model is then parameterized. Only four design variables have been chosen to control the shape modification of the hat-shelf. The aim of this paper is to decrease the vehicle interior noise due to three different excitations for two cases of fluid damping.