In order to ensure the safe operation of pressure vessel cylinders in the service stage, the mechanical response law of gas cylinders under dynamic load under different working conditions is clarified. In this study, numerical simulation was used to study the different shock loads of gas cylinders at different positions. The finite element analysis results of the impact load of the cylinder when the sphere and cone are used as the percussive objects are compared and analyzed, and it is concluded that the steel cylinder will cause obvious deformation of the cylinder as a whole when subjected to the impact load, and the maximum deformation position is located at the top head or the connection between the top head and the cylinder. Because of the presence of the saddle, the shock load acts on the bottom head, and the equivalent force distribution is mainly distributed in the lower half of the cylinder. When acting on the cylinder or the connection between the cylinder and the top head, the equivalent force is distributed throughout the cylinder, but regardless of where the shock load is applied, the maximum equivalent force occurs at the connection between the cylinder and the saddle, where the stress concentration is generated. The cylinder bears the impact load applied by different percussive objects, the incidence speed increases, the maximum deformation and equivalent force generated by the cylinder increase, and there are also certain differences in the value when the cylinder bears the impact load applied by the sphere and the cone, indicating that when the cylinder bears the impact load, the type of percussion has a certain impact on the equivalent force of the cylinder.

This content is only available via PDF.
You do not currently have access to this content.