Matematická analýza odezvy konstrukce výbuchové komory na účinky výbuchu

Abstract

The subject of this master thesis is the analysis of the response of the explosion chamber model to the load caused by detonation using numerical simulation. The finite element method was used to solve the problem using the LS-DYNA calculation program. In the introduction of the thesis, the general theory of the explosion is described, including some empirical relations regarding the explosion and the propagation of the shock wave. In the next chapter, the possibilities of selected anti-explosion measures are presented. The actual modeling of the explosion chamber using the LS-DYNA program is preceded by a preliminary study of applicable solution methods in that program. This includes an analysis of the influence of individual input conditions and network setting parameters on the time course of contact pressures and shock wave behavior. On the basis of this study, an own computational model of the explosion chamber was created, on which the influence of the size of the ventilation opening was analyzed.