Optimum design for graded honeycomb as energy absorber device in elevator cabin

摘要

In this study graded honeycomb structure has been introduced as energy dissipation device. This type of energy absorbers can reduce casualty in case of an accident for moving vehicles. In this study energy absorbers design for elevator cabin is considered. A Numerical investigation conducted and results for total absorbed energy, load and acceleration subject to occupant has been presented. Numerical investigation has been done by ABAQUS software. Moreover, Optimization process using Matlab also implemented for graded honeycomb structures. In the optimization process structural mass to total absorbed energy is minimized. Considering high probability for free fall in elevator, protective devices such as energy absorbers plays an important role for reducing casualties. Therefore, considering EN 81-1 standard, energy absorber for free fall of elevator cabin designed in this paper. Designed energy absorber based on grade honeycomb can satisfy standard requirements. The result of this study can be used as a reference for future designs for energy dissipation devices.