Abstract：By employing algorithm ANSYS/LS-DYNA and based on the proof of correctness and reliability of the model and parameters selection, an appropriate model for calculating the shock wave pressure distribution of the large-space cylindrical reticulated shell under explosive loading was established. Using the Proper Orthogonal Decomposition (POD) method, the problems of spatiotemporal asynchrony of shock waveforms and pressure distributions on the large-space structure surface were solved and the calculation for dynamic response of large-space structure was greatly reduced and simplified. The numerical simulation and analysis of shock wave pressure field of the large-space cylindrical reticulated shell under explosion was carried out. And the influence of span and ratio of rise to span on the pressure distribution of the structure was researched. The results showed that the calculation model is suitable for the dynamic response analysis of the large-space cylindrical reticulated shell under explosion.
2011, Vol. 30 
