采用“分离法”建立了空投系统动力学模型,通过matlab/Simulick进行六自由度仿真,并将仿真结果与实际飞行试验结果进行对比,验证了模型的正确性。对空投速度、飞机质量、货物质量、货物装载位置4种因素对飞机纵向动态特性的影响进行了详细的分析,最终得出最佳空投状态,分析结果可为以后的航空飞行试验提供很有价值的技术参考。 The dynamic model of airdrop system was established by using “separation method”. Six degrees of freedom simulation was carried out by matlab / Simulick, and the simulation results were compared with the actual flight test results to verify the correctness of the model. The effects of airdrop speed, aircraft quality, cargo quality and cargo loading position on the longitudinal dynamic characteristics of the aircraft are analyzed in detail, and finally the optimal airdrop status is obtained. The results of the analysis can provide valuable values ​​for future aviation flight tests Technical reference.