The effects of altitudes and the decoupled conditions of low pressure and temperature on the blast wave parameters of moving charge were investigated by employing the AUTODYN software.Additionally,a theoretical calculation model was developed to predict peak overpressure of the moving charge under low pressure and temperature.The model was validated subsequently through experimental data and numerical simulations.The results indicate that the model can assess the blast wave peak overpressure of moving charge at low temperature,pressure and coupled high-altitude environment effectively.The peak overpressure of the blast wave generated by the moving charge decreased by an average of 35.6％,the action range increased by 62.0％ for altitude increased from 0 to 10000m.With the ambient temperature decreased,the peak overpressure of the blast wave increased by an average of 0.43％,the action range decreases by 11.9％;and with the ambient pressure de-creased,the peak overpressure of the blast wave decreased by an average of 36.4％,the action range increased by 83.5％.The increase coefficient of blast wave overpressure resulting from the moving charge at various altitudes closely resembles that of low pressure.In high-altitude settings,the action range and overpressure of the blast wave from the moving charges explo-sion are predominantly influenced by pressure,whereas the effect of temperature is comparatively marginal.
维普
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