چكيده به لاتين
Abstract:
In automotive industries, thin-walled members and beams have been utilized in various section of automotive body. In this dissertation, analytical and numerical analysis of strength, stiffness and vibration of panels in national Platform automotive has been studied. Numerical analyses are based on finite element method in which requirements of national platform has been simulated using ABAQUS CAE software. First, a description of requirement based on SDS reports are presented and the results of simulations are presented in section of results. These simulations consider the strength, stiffness and frequency analysis of national Platform automotive. The analysis of numerical results show that the geometry of investigated panels can meet all of the requirements proposed in SDS reports. In section of analytical modelling, first, governing equations of functionally graded (FG) doubly curved panels and beams are extracted based on higher order deformation theory. The mentioned panels might reduce to panels with simple geometries and materials such as bonnet and decklid panel of automotive of national platform. The solution for nonlinear dynamic response of FG doubly curved panel and beam are extracted using an asymptotic method. Effects of each involved parameter on vibration and impact response of FG panels are investigated. Moreover, an analytical verification for some numerical simulations is presented in results section.
Keywords: Bonnet, Decklid, Fender, Doubly Curved Panel, Thermal Field, Elastic Foundation, Asymptotic Method
