关键词: 复合材料；车用气瓶；结构设计；有限元分析

Abstract: Compared with traditional gas cylinders, composite materials gas cylinders have many advantages such as easy processing, low density and high strength.When the vehicle gas cylinders are made of composite materials, and the whole vehicle lightweight will be realized and energy consumption can be reduced. In this paper, a composite cylinder with a volume of 30 L is designed, according to the grid theoretical calculation method and the actual processing requirements, the basic dimensions of the liner and reinforcement fiber are designed. The finite element analysis ABAQUS software is used to analyze the strength of the cylinder to verify the rationality of the designed composite cylinder. This paper can provide some reference for the design of composite materials vehicle gas cylinder.

Key words: Composite materials; Vehicle gas cylinder; Structural design; Finite element analysis