A Study on the Strength of CNG Cylinders Frame in a New Energy Coach

Abstract

In order to study the influence of dynamic load for CNG cylinder frame in a new energy coach, the finite element model of CNG cylinders and frame was developed with 3D reverse engineering and the finite element method. The strength analysis was performed by loading 6.6g acceleration in the forward direction and 5g acceleration in horizontal direction according to ECE R110 regulations requirements. After the displacement of frame reached to the dynamic balance, the von Mises stress distribution was analyzed. The results indicated that the maximum values were less than the permissible stress. In this paper, the finite element method was adopted to analysis of the strength of CNG cylinders frame, reduce the cost of the development in a new energy coach, and provide an important reference of the research and design in a new energy coach.