Fast simulation of pyroshock responses of a conical structure using rotation-superposition method

In space engineering, the prediction of structural responses induced by pyrotechnic devices is important for protecting the space hardware, especially the electronic components. This paper presents a fast simulation of pyroshock responses of a conical space structure. Firstly, a finite element analysis was performed and the responses to a load element were obtained. Then, by introducing the quick method, Rotation-Superposition Method, the structural responses induced by various numbers of explosive bolts were predicted and the effects of non-simultaneous initiations were also analyzed. This study provides a high-efficiency approach for multi-case pyroshock responses prediction.